What is the main difference between Medicare Advantage and Medicare Supplement?

Medicare Supplement (Medigap) works alongside Original Medicare — it pays after Medicare to cover your out-of-pocket costs, and you can see any Medicare-accepting provider nationwide. Medicare Advantage replaces Original Medicare with a private plan that restricts you to a network and requires prior authorizations, but often has lower premiums and includes extras like dental and vision.

Is Medicare Advantage or Medicare Supplement more expensive?

It depends on how much healthcare you use. Medicare Advantage often has $0 premiums but charges copays and coinsurance each time you use services, with an out-of-pocket maximum up to $9,350 in 2026. Medicare Supplement has a monthly premium ($80–$300+) but leaves you with very little additional cost once you pay it. For high healthcare users, Medigap is almost always less expensive overall.

Can I have both Medicare Advantage and Medicare Supplement?

No. Medicare Supplement plans are designed to work with Original Medicare. If you enroll in Medicare Advantage, you cannot use a Medigap plan — it is illegal for an insurer to sell you one while you are on Medicare Advantage. You must choose one path or the other.

What happens if I choose Medicare Advantage and want to switch to Medigap later?

You can switch during the Annual Enrollment Period (Oct 15–Dec 7) or the Medicare Advantage Open Enrollment Period (Jan 1–Mar 31). However, once your Medigap guaranteed issue window at 65 has passed, Florida insurers can use medical underwriting to decline your application based on health conditions. This is the biggest risk of starting with Medicare Advantage.

Does Medicare Supplement cover dental and vision?

No. Standard Medigap plans do not include dental, vision, or hearing coverage. You would need to purchase separate dental and vision insurance. Medicare Advantage plans often include these benefits, though coverage is typically limited (e.g., $1,000–$2,000 annual dental maximum).

Which is better for someone with a chronic condition?

For people with chronic conditions like diabetes, heart disease, or COPD, Medicare Supplement is almost always the better choice. The unlimited provider access, no prior authorizations, and predictable out-of-pocket costs make managing ongoing care far easier and less expensive than navigating Medicare Advantage networks and approval processes.

Do I need a Part D drug plan with Medicare Supplement?

Yes. Medigap plans do not include prescription drug coverage. You need to enroll in a standalone Medicare Part D plan when you first become eligible. If you delay Part D enrollment without other creditable drug coverage, you may face a late enrollment penalty.

What is the out-of-pocket maximum for Medicare Advantage in 2026?

In 2026, the maximum out-of-pocket limit for Medicare Advantage plans is $9,350 for in-network services. Some plans set lower limits, but you could owe up to that amount in a single year if you have a serious illness or hospitalization. Out-of-network costs may be higher or unlimited depending on the plan type.

Can I use Medicare Advantage if I travel a lot?

Medicare Advantage plans generally cover emergency and urgent care anywhere in the US, but routine care is restricted to your plan's service area and network. If you spend significant time in multiple states or travel frequently, Medicare Supplement is a much better fit — it is accepted by any Medicare provider nationwide.

How do I compare Medicare Advantage and Medicare Supplement plans in Florida?

The best way is to work with an independent broker who can show you options from multiple carriers side by side without pushing you toward any one plan. William Gray is licensed to sell both Medicare Advantage and Medicare Supplement plans across Florida and can provide a free, no-obligation comparison based on your specific health needs, budget, and preferred doctors.

What is the Medigap Open Enrollment Period and when does it start?

The Medigap Open Enrollment Period (OEP) is a six-month window that begins the month you turn 65 and enroll in Medicare Part B. During this window, you have guaranteed issue rights — every carrier must sell you any Medigap plan at standard rates, with no medical underwriting. This is the most important enrollment window in Medicare, and it does not repeat. Florida does not have a birthday rule or ongoing open enrollment, so once your OEP closes, carriers can use medical underwriting to evaluate future applications.

What is medical underwriting and how does it affect Medigap applications?

Medical underwriting is the process by which an insurance carrier evaluates your health history to decide whether to sell you a policy and at what price. Outside of guaranteed issue windows, Florida Medigap carriers can ask detailed health questions and decline applications based on conditions like diabetes, heart disease, COPD, cancer history, stroke, kidney disease, and many others. If you are denied, you may be unable to get a Medigap plan at any price — which is why the initial enrollment decision at 65 is so consequential.

What are the three Medigap premium rating methods?

Medigap plans are priced using one of three methods. Community-rated plans charge the same premium regardless of age. Issue-age-rated plans set your premium based on the age at which you first enroll, and it does not increase as you get older. Attained-age-rated plans increase your premium as you age. Florida is primarily an attained-age-rated market, which means premiums rise both due to general rate increases and your advancing age. Enrolling at 65 locks in the lowest possible attained-age rate.

Does Medicare Advantage require referrals to see a specialist?

It depends on the plan type. HMO plans typically require a referral from your primary care physician before you can see a specialist. PPO plans generally do not require referrals but charge higher cost-sharing for out-of-network care. PFFS and SNP plans have their own rules. Original Medicare with a Medigap plan never requires referrals — you can see any Medicare-accepting specialist directly without prior approval.

What happens to my Medicare Advantage coverage if I move to another state?

Medicare Advantage plans are geographically restricted to a service area. If you move permanently to another state, you will need to find a new Medicare Advantage plan in your new location during a Special Enrollment Period triggered by your move. If you move to an area with no Medicare Advantage plans, you will return to Original Medicare. This is also an opportunity to enroll in a Medigap plan — moving out of a plan's service area is one of the guaranteed issue situations where underwriting does not apply.

Are Medicare Advantage extra benefits like dental and vision worth it?

Medicare Advantage dental and vision benefits are real but limited. Dental coverage typically caps at $1,000–$2,000 per year and may not cover major procedures like crowns, bridges, or implants. Vision coverage usually covers one annual exam and a basic frame allowance. Hearing benefits vary widely. These extras have value, but they should not be the primary reason to choose Medicare Advantage over a Medigap plan. Evaluate the actual dollar value of the benefits against the potential cost exposure from networks, prior authorizations, and variable cost-sharing.

What is a Special Needs Plan (SNP) and is it different from regular Medicare Advantage?

Special Needs Plans (SNPs) are a type of Medicare Advantage plan designed for people with specific conditions or circumstances. Chronic Condition SNPs (C-SNPs) serve people with conditions like diabetes, heart failure, or COPD. Dual Eligible SNPs (D-SNPs) serve people who qualify for both Medicare and Medicaid. Institutional SNPs (I-SNPs) serve people in nursing facilities. SNPs can offer more tailored benefits for their target populations, but they carry the same fundamental limitations as other Medicare Advantage plans: network restrictions, prior authorizations, and variable cost-sharing.

Can I be denied Medicare Advantage coverage?

No. Medicare Advantage plans must accept any Medicare beneficiary who applies during an enrollment period, regardless of health status. This is different from Medigap, which uses medical underwriting outside of guaranteed issue windows. However, being accepted into a Medicare Advantage plan does not mean the plan will approve all the care you need — prior authorization denials are a separate issue from enrollment eligibility.

What is the difference between Medicare Advantage HMO and PPO plans?

HMO (Health Maintenance Organization) plans require you to use in-network providers for all non-emergency care and typically require referrals to see specialists. They generally have lower premiums and copays but less flexibility. PPO (Preferred Provider Organization) plans allow you to see out-of-network providers at higher cost-sharing and do not require referrals. PPOs offer more flexibility but typically have higher premiums. Both types restrict you to a network and require prior authorizations for many services — unlike Original Medicare with a Medigap plan.

How do I know if my doctor accepts Medicare Supplement?

Any doctor or hospital that accepts Medicare — which includes the vast majority of physicians and facilities in the United States — will also accept your Medigap plan. There is no separate network to check. You simply confirm that your provider accepts Medicare (not Medicare Advantage), and your Medigap plan will pay its share of the Medicare-approved amount. This is one of the most significant practical advantages of the Medigap model: provider access is determined by Medicare, not by a private plan's contracting decisions.

What does Medicare Supplement Plan G cover in 2026?

Plan G covers everything Medicare covers except the Part B deductible ($257 in 2026). That means 100% of Part A hospital costs including coinsurance and the $1,676 deductible, 100% of Part B coinsurance after you pay the deductible, skilled nursing facility coinsurance, Part A hospice coinsurance, and foreign travel emergency care (up to plan limits). Once you pay the Part B deductible once per year, your out-of-pocket costs for Medicare-covered services are essentially zero for the rest of the year.

What is the Part B deductible and how does it affect Plan G vs Plan F?

The Medicare Part B deductible is $257 in 2026. Plan F covers this deductible; Plan G does not. Plan F is no longer available to people who became Medicare-eligible after January 1, 2020. For those who can still get Plan F, the premium difference between Plan F and Plan G is almost always more than $257 per year — meaning Plan G is the better financial choice for most people. If you were Medicare-eligible before 2020, you can still enroll in Plan F, but compare the premium difference carefully before choosing it over Plan G.

How much does Plan G cost per month in Florida?

Plan G premiums in Florida vary by age, gender, tobacco use, ZIP code, and carrier. At age 65, a non-tobacco-using female might pay $100–$160 per month; a male the same age might pay $120–$190. Premiums increase with age under attained-age rating, which is the most common pricing method in Florida. At age 75, the same plan might cost $180–$280 per month. Because 20+ carriers offer Plan G in most Florida counties, comparison shopping through an independent broker can save $50–$100 per month for identical coverage.

What is High-Deductible Plan G and who is it best for?

High-Deductible Plan G (HDG) provides the same coverage as standard Plan G but requires you to pay a deductible ($2,870 in 2026) before the plan begins paying. In exchange, the monthly premium is much lower — typically $30–$70 per month in Florida. HDG is best for healthy enrollees who want catastrophic protection at a low premium and are comfortable paying out-of-pocket for routine care. Over a 5-year period, a healthy person on HDG often saves $5,000–$10,000 compared to standard Plan G, but a person with significant healthcare use may pay more.

Does Medicare Advantage cover skilled nursing facility care?

Yes, but with significant cost-sharing. Most Medicare Advantage plans cover skilled nursing facility (SNF) care with copays that vary by plan — commonly $0 for days 1–7, then $150–$200 per day for days 8–20, then full cost after day 20. Original Medicare covers SNF care at 100% for days 1–20 after a qualifying hospital stay, then with coinsurance for days 21–100. Plan G covers that coinsurance entirely. For extended SNF stays, Medigap is almost always less expensive than Medicare Advantage.

What is the Medicare Part A deductible and does Medigap cover it?

The Medicare Part A deductible is $1,676 per benefit period in 2026. It applies each time you are admitted to a hospital after a 60-day break in inpatient care — meaning you could owe it more than once per year if you have multiple hospitalizations. Plan G covers this deductible in full. Medicare Advantage plans typically replace it with a per-day copay structure instead. For people with multiple hospitalizations in a year, Plan G's coverage of the Part A deductible can represent thousands of dollars in savings.

Does Medicare cover prescription drugs?

Original Medicare (Parts A and B) does not cover most outpatient prescription drugs. Drug coverage comes from Medicare Part D, which is a standalone plan you add to Original Medicare with a Medigap policy. Medicare Advantage plans typically include Part D drug coverage built in (called MAPD plans). If you choose Original Medicare with a Medigap plan, you must enroll in a standalone Part D plan separately. Failing to enroll when first eligible results in a permanent late enrollment penalty added to your Part D premium.

What is Medicare excess charges and does my plan cover them?

Medicare excess charges occur when a doctor does not accept Medicare assignment — meaning they charge more than Medicare's approved amount. They can charge up to 15% above the Medicare-approved rate. Plan G and Plan F cover excess charges in full. Plan N does not cover excess charges, which is one of the key trade-offs of choosing Plan N over Plan G. In Florida, most doctors accept Medicare assignment, but specialists — particularly in high-demand fields — sometimes do not. If you choose Plan N, verify that your key providers accept assignment.

What is the Medicare Advantage Annual Enrollment Period?

The Annual Enrollment Period (AEP) runs from October 15 to December 7 each year. During this window, you can switch from one Medicare Advantage plan to another, switch from Medicare Advantage to Original Medicare, add or drop a Part D plan, or switch Part D plans. Changes take effect January 1. This is the primary window for making coverage changes. There is also a Medicare Advantage Open Enrollment Period (OEP) from January 1 to March 31, during which you can make one change — but only if you are already enrolled in a Medicare Advantage plan.

Can I switch from Medicare Supplement to Medicare Advantage?

Yes. You can drop your Medigap plan and enroll in a Medicare Advantage plan during the Annual Enrollment Period (Oct 15–Dec 7). There is no underwriting for Medicare Advantage — all plans must accept you regardless of health. However, think carefully before making this switch. If you later want to return to a Medigap plan, you will face medical underwriting in Florida and may be denied or charged higher premiums based on your health at that time. The switch from Medigap to MA is easy; the switch back is not.

What is a guaranteed issue right and when does it apply?

A guaranteed issue right is a federally protected right to buy a Medigap plan without medical underwriting. Beyond the initial 6-month OEP at 65, guaranteed issue rights apply in specific situations: your Medicare Advantage plan leaves your service area or loses its Medicare contract; you move out of your plan's service area; you lose employer or union coverage; your Medigap insurer goes bankrupt; or you enrolled in Medicare Advantage for the first time at 65 and want to switch back within 12 months (the 'trial right'). These situations are narrow — do not count on them as a reliable path back to Medigap.

What is the Medicare Advantage 12-month trial right?

If you enroll in Medicare Advantage for the first time at age 65 and decide within 12 months that you prefer Original Medicare, you have a one-time guaranteed issue right to enroll in a Medigap plan without underwriting. This trial right applies only once, only at age 65, and only if you have never had a Medigap plan before. It is a useful safety valve for people who are uncertain at 65, but it is not a substitute for making a thoughtful initial decision — and it does not apply if you switch to Medicare Advantage later in life.

What is a Medicare SELECT plan?

Medicare SELECT is a type of Medigap plan that requires you to use specific hospitals and, in some cases, specific doctors to receive full benefits (except in emergencies). In exchange, SELECT plans typically have lower premiums than standard Medigap plans with the same coverage. They are less common than standard Medigap plans and are not available from all carriers in all areas. If you are considering a SELECT plan, verify that the required hospitals and providers are convenient for your needs before enrolling.

Does Medicare Supplement cover care outside the United States?

Most Medigap plans — including Plan G and Plan N — include a foreign travel emergency benefit that covers 80% of medically necessary emergency care outside the US after a $250 deductible, up to a lifetime maximum of $50,000. Original Medicare does not cover care outside the US at all. Medicare Advantage plans cover emergency care outside the US in some cases, but coverage varies by plan. If you travel internationally, the Medigap foreign travel benefit is a meaningful advantage.

What is the difference between Plan G and Plan N?

Both Plan G and Plan N cover the Part A deductible, Part A coinsurance, skilled nursing facility coinsurance, and foreign travel emergency care. The key differences: Plan G covers Part B excess charges and has no copays for office visits. Plan N does not cover excess charges and charges copays of up to $20 for office visits and up to $50 for emergency room visits that do not result in inpatient admission. Plan N premiums are typically $20–$50 per month lower than Plan G. Plan N is a good fit for people who see doctors who accept Medicare assignment and want a lower premium; Plan G is better for people who want zero surprise costs.

How does Medicare Advantage handle emergency care?

Medicare Advantage plans are required by federal law to cover emergency care at in-network cost-sharing rates regardless of where you receive it — even out of network or out of state. However, 'emergency' has a specific definition: a condition that a reasonable person would believe requires immediate medical attention to prevent serious harm. Follow-up care after an emergency, specialist consultations during a hospital stay, and post-acute care may not be covered at in-network rates if the providers are out of network. Always verify coverage for post-emergency care before assuming it is fully covered.

What is a Medicare Advantage PFFS plan?

A Private Fee-for-Service (PFFS) plan is a type of Medicare Advantage plan that sets its own payment rates for providers. Unlike HMO or PPO plans, PFFS plans do not have a fixed network — any provider who agrees to the plan's payment terms can treat you. However, providers are not required to accept PFFS plans, and some may decline. PFFS plans are less common than HMO and PPO plans and have largely been replaced by PPO structures in most markets. Before enrolling in a PFFS plan, verify that your key providers will accept it.

Can I keep my Medicare Supplement plan if I move to another state?

Yes. Medigap plans are portable — you can keep your plan if you move to another state, and it will cover you anywhere Medicare is accepted in the US. However, your premium may change because Medigap pricing varies by state and ZIP code. Some carriers allow you to transfer your policy to the new state; others may require you to apply for a new policy. If you apply for a new policy after your initial OEP, you may face medical underwriting. Check with your carrier before moving to understand your options.

What is the Medicare Advantage star rating system?

CMS rates Medicare Advantage plans on a 1-to-5-star scale based on quality measures including member satisfaction, managing chronic conditions, preventive care, and customer service. Plans with 4 or 5 stars are considered high-quality. Star ratings are published annually and can change year to year. While star ratings are a useful starting point for evaluating plan quality, they do not tell you whether your specific doctors are in-network, what your actual cost-sharing will be, or how the plan handles prior authorizations in practice. Use star ratings as one input among many, not as the primary selection criterion.

What is dual eligibility and how does it affect Medicare coverage?

Dual eligibility means you qualify for both Medicare and Medicaid. If you are dual-eligible, Medicaid may cover your Medicare premiums, deductibles, and cost-sharing — which significantly changes the cost comparison between Medicare Advantage and Medigap. Dual Eligible Special Needs Plans (D-SNPs) are Medicare Advantage plans specifically designed for dual-eligible beneficiaries and often provide coordinated care and additional benefits. If you are dual-eligible, the standard MA vs Medigap analysis does not fully apply — your Medicaid benefits change the equation substantially. An independent broker familiar with dual eligibility can help you understand your specific options.

Does Medicare cover mental health services?

Yes. Original Medicare covers outpatient mental health services — including therapy, counseling, and psychiatric evaluations — at 80% after the Part B deductible. Plan G covers the remaining 20% coinsurance. Medicare Advantage plans cover mental health services but may require in-network providers and prior authorizations for certain services. Inpatient psychiatric care is covered under Part A with the same cost-sharing structure as other hospital care. Mental health parity rules require Medicare Advantage plans to cover mental health services at the same level as medical services.

What is the Medicare Part B premium and does it apply to both Medicare Advantage and Medigap?

The standard Medicare Part B premium is $185 per month in 2026 (higher if you are subject to IRMAA surcharges based on income). You pay this premium regardless of whether you have Medicare Advantage or a Medigap plan — it is a Medicare cost, not a plan cost. Medicare Advantage plans may offer a Part B premium reduction benefit that partially offsets this cost, but the reduction is typically modest ($10–$50 per month) and comes with trade-offs in network and cost-sharing. With Medigap, you pay the Part B premium plus your Medigap premium; with Medicare Advantage, you pay the Part B premium plus any plan premium (often $0).

What is IRMAA and how does it affect Medicare costs?

IRMAA (Income-Related Monthly Adjustment Amount) is a surcharge added to your Medicare Part B and Part D premiums if your income exceeds certain thresholds. In 2026, IRMAA surcharges begin for individuals with modified adjusted gross income above $106,000 (or $212,000 for married couples filing jointly). The surcharge ranges from roughly $74 to $443 per month for Part B, depending on income level. IRMAA applies regardless of whether you have Medicare Advantage or Medigap — it is a Medicare cost, not a plan cost. If you are near an IRMAA threshold, income planning strategies may help reduce or avoid the surcharge.

Can I enroll in Medicare if I am still working and have employer coverage?

If you are still working at 65 and covered by employer health insurance through a company with 20 or more employees, you can delay Medicare enrollment without penalty. Your employer coverage is considered primary, and Medicare would be secondary. When you eventually retire or lose employer coverage, you have an 8-month Special Enrollment Period to sign up for Medicare without late enrollment penalties. This also triggers a guaranteed issue right for Medigap. If your employer has fewer than 20 employees, Medicare becomes primary at 65 and you should enroll to avoid gaps in coverage.

What happens to my Medicare Advantage plan if the carrier exits my market?

If your Medicare Advantage carrier exits your county or state, you will receive a notice by October 1 for changes effective January 1. You will have a Special Enrollment Period to choose a new Medicare Advantage plan or return to Original Medicare. Importantly, this plan exit also triggers a guaranteed issue right for Medigap — you can enroll in a Medigap plan without medical underwriting. This is one of the few situations after age 65 where you can get a Medigap plan regardless of your health status. If your carrier announces an exit, act quickly to evaluate your options.

What is the difference between Medicare Supplement and Medicaid?

Medicare Supplement (Medigap) is private insurance that you purchase to cover Medicare's cost-sharing — deductibles, copays, and coinsurance. It is available to anyone with Medicare Parts A and B, regardless of income. Medicaid is a joint federal-state program for people with low income and limited assets. Medicaid can cover Medicare premiums and cost-sharing for dual-eligible beneficiaries, but eligibility is income-based and varies by state. The two programs serve different populations and serve different functions — Medigap fills Medicare's gaps for people who can afford the premium, while Medicaid provides coverage for those who cannot.

How do I appeal a Medicare Advantage prior authorization denial?

If your Medicare Advantage plan denies a prior authorization request, you have the right to appeal. The first level is an internal plan appeal, which must be decided within 30 days for standard requests or 72 hours for urgent cases. If the internal appeal is denied, you can request an Independent Review Entity (IRE) review, then escalate to the Office of Medicare Hearings and Appeals (OMHA), and ultimately to federal court. The appeals process can take weeks or months. Keep detailed records of all communications, get your doctor to provide supporting documentation, and consider working with a patient advocate or Medicare counselor if the denial involves significant care.

What is the difference between Medicare Advantage and Medicare Cost plans?

Medicare Cost plans are a less common type of Medicare plan available in certain areas. Unlike Medicare Advantage, Cost plans allow you to use out-of-network providers and have those services covered by Original Medicare — you are not locked into a network for all care. Cost plans are available in limited areas and are being phased out in markets with sufficient Medicare Advantage competition. If you are in an area with a Cost plan option, it may offer more flexibility than a standard Medicare Advantage plan, but availability is limited and the plans are becoming increasingly rare.

What should I look for when comparing Medicare Advantage plans during Annual Enrollment?

When comparing Medicare Advantage plans during AEP, evaluate: (1) whether your current doctors and hospitals are in-network for the coming year — networks change annually; (2) your drug formulary — verify your specific medications are covered at acceptable tiers; (3) the out-of-pocket maximum — lower is better; (4) copays for the services you use most (primary care, specialists, imaging, physical therapy); (5) prior authorization requirements for your ongoing treatments; (6) the plan's star rating for quality; and (7) any extra benefits you actually use, such as dental or vision. Do not choose based on premium alone — the lowest-premium plan is rarely the lowest-cost plan for people who use healthcare.

Why should I use an independent broker instead of going directly to a Medicare Advantage or Medigap carrier?

An independent broker like William Gray represents multiple carriers — not just one — and is legally obligated to recommend the plan that best fits your needs, not the plan that pays the highest commission. Going directly to a carrier means you only see that carrier's options. An independent broker can compare premiums across 20+ Medigap carriers in your ZIP code in minutes, pull rate increase history to identify carriers with stable pricing, verify your doctors are in-network across multiple Medicare Advantage plans, and explain the trade-offs of each option without a sales agenda. The broker's compensation comes from the carrier you choose — there is no additional cost to you for using one.

Independent Broker — No Carrier Bias

Medicare Advantage vs Medicare Supplement: Which Is Right for You?

Two very different ways to cover what Original Medicare leaves behind. One caps your costs with unlimited provider access. The other adds extra benefits but restricts your care. Here is the honest comparison.

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The Most Important Medicare Decision You Will Make

When you turn 65 and enroll in Medicare, you face a fork in the road: stick with Original Medicare and add a Medigap plan, or replace Original Medicare entirely with a Medicare Advantage plan. Both options cover your healthcare — but they work in completely different ways, with very different cost structures, provider access rules, and long-term implications. This guide walks through every major difference so you can make an informed choice.

As an independent broker licensed to sell both Medicare Advantage and Medicare Supplement plans, William Gray has no financial incentive to push you toward either option. His goal is to match you with the coverage that fits your health, budget, and lifestyle.

How Each Option Works

Medicare Supplement (Medigap)

You keep Original Medicare (Parts A and B) as your primary insurance. A Medigap plan — sold by private insurers — pays after Medicare, covering most or all of the costs Medicare leaves behind: deductibles, copays, and the 20% coinsurance. You pay a monthly premium for the Medigap plan in addition to your Part B premium.

Original Medicare pays first; Medigap pays second
Works with any doctor or hospital that accepts Medicare — nationwide
No networks, no referrals, no prior authorizations
Predictable costs: pay your premium, Medicare handles the rest
Add a standalone Part D plan for prescription drug coverage

Medicare Advantage (Part C)

A private insurance company takes over your Medicare coverage entirely. You still pay your Part B premium, but the Advantage plan replaces Original Medicare. Most plans include drug coverage (MAPD) and extras like dental, vision, and hearing. Many have $0 monthly premiums — but you pay copays and coinsurance each time you use services.

Private insurer replaces Original Medicare as your primary coverage
Restricted to a network of doctors and hospitals (HMO or PPO)
Prior authorizations required for many services and procedures
Out-of-pocket maximum up to $9,350 in-network in 2026
Often includes dental, vision, hearing, and fitness extras

Side-by-Side Comparison: Medicare Advantage vs Medicare Supplement

Feature	Medicare Supplement (Medigap)	Medicare Advantage
Monthly premium	$80–$300+ depending on plan and age	$0–$100+ (plus Part B premium for both)
Out-of-pocket maximum	$0 with Plan G (after Part B deductible)	Up to $9,350 in-network in 2026
Provider network	Any doctor/hospital that accepts Medicare — nationwide	Restricted to plan network (HMO or PPO)
Referrals required	No	Yes, for most HMO plans
Prior authorizations	Rarely required	Frequently required for procedures, imaging, specialists
Prescription drug coverage	Add standalone Part D plan	Usually included (MAPD)
Dental / vision / hearing	Not included	Often included (limited scope)
Cost predictability	Very high — premium is your main variable cost	Lower — costs vary with each service used
Travel / multi-state coverage	Excellent — accepted anywhere in the US	Limited — emergency only outside service area
Switching back to Medigap	N/A	Possible but may require medical underwriting

The Real Cost Comparison

The $0 premium on many Medicare Advantage plans is eye-catching — but premium is only one part of your total annual cost. Here is how the math actually works for a typical Florida beneficiary in 2026.

Low healthcare use (1–2 doctor visits/year)

Medigap total~$1,800–$3,600 (premium only)

MA total~$500–$1,500 (copays + Part B)

Medicare Advantage wins

MA wins on cost for very healthy enrollees who rarely use services.

Moderate use (surgery, specialist visits, imaging)

Medigap total~$1,800–$3,600 (premium only)

MA total~$3,000–$6,000 (copays + coinsurance)

Medicare Supplement wins

Medigap's predictable premium beats MA's accumulating copays once you start using care.

High use (chronic condition, hospitalization)

Medigap total~$1,800–$3,600 (premium only)

MA total$6,000–$9,350+ (approaching OOP max)

Medicare Supplement wins

Plan G's near-zero out-of-pocket exposure is far superior for high healthcare users.

Medicare Supplement — Pros and Cons

Pros

See any Medicare-accepting doctor or specialist in the US — no referrals

Predictable costs: your premium is your main expense

No prior authorizations for most services

Ideal for travelers and snowbirds

Plan G leaves you with only the Part B deductible ($257 in 2026)

No surprise bills from out-of-network care

Cons

Monthly premium adds to your fixed expenses

No dental, vision, or hearing coverage included

Must add a separate Part D plan for drug coverage

Premiums increase with age and can rise over time

Medical underwriting may apply if you switch later

Medicare Advantage — Pros and Cons

Pros

Often $0 or low monthly premium

Drug coverage usually bundled in

Extras: dental, vision, hearing, fitness benefits

Out-of-pocket maximum limits catastrophic exposure

One-card simplicity for most services

Cons

Restricted to plan network — limited provider choice

Prior authorizations can delay or deny care

Copays and coinsurance accumulate with each service

Out-of-pocket max can reach $9,350 in-network in 2026

Switching back to Medigap may require medical underwriting

Plan benefits and networks change every year at renewal

Who Should Choose Each Option?

Medicare Supplement is usually the better fit if you:

Have ongoing health conditions or expect significant healthcare use
Want to see any doctor or specialist without network restrictions
Travel frequently or split time between states
Value cost predictability over a lower monthly premium
Are enrolling at 65 and can qualify without medical underwriting
Want to avoid the risk of being locked out of Medigap later

Medicare Advantage may make sense if you:

Are in excellent health and rarely use medical services
Have a very tight budget and cannot afford a Medigap premium
Want dental, vision, and hearing coverage in one plan
Are comfortable staying within a local provider network
Understand and accept the prior authorization process
Live in an area with strong, stable Medicare Advantage plan options

The Switching Risk: Why Timing Matters

One of the most important — and least discussed — aspects of this decision is what happens if you choose Medicare Advantage and later want to switch to a Medigap plan. During your Medigap Open Enrollment Period (the 6 months starting when you turn 65 and enroll in Part B), you have guaranteed issue rights: no carrier can deny you or charge you more based on health conditions. Once that window closes, most states allow carriers to use medical underwriting. In Florida, that means a carrier can decline your application if you have conditions like diabetes, heart disease, COPD, or cancer. If you choose Medicare Advantage at 65 and your health declines, you may find yourself unable to qualify for a Medigap plan when you want one most.

Florida does not have a birthday rule or continuous open enrollment for Medigap. Your guaranteed issue window at 65 is your best — and often only — chance to enroll without underwriting.

The $0 Premium Myth: What Medicare Advantage Really Costs

The most effective marketing line in Medicare Advantage is "$0 premium." It is technically accurate — many plans charge no additional monthly premium beyond your Part B premium. But premium is only one dimension of cost, and for most people who actually use healthcare, it is not the most important one.

Here is how Medicare Advantage costs actually accumulate. Every time you see a primary care doctor, you pay a copay — typically $5 to $40. Every specialist visit: $40 to $80. An outpatient surgery: $250 to $1,000 or more. A hospital stay: $300 to $400 per day for the first several days. An MRI or CT scan: $100 to $300. Physical therapy: $30 to $60 per visit. These costs add up quickly, and they are variable — you cannot predict them at the start of the year the way you can predict a monthly premium.

The out-of-pocket maximum is the safety valve Medicare Advantage plans advertise. In 2026, the maximum allowed is $9,350 for in-network services. Some plans set lower limits — $3,000, $4,000, $5,000 — but many set the maximum at or near the federal ceiling. If you have a serious illness, a hospitalization, or a surgical procedure, you could reach that maximum in a single year. And unlike a Medigap premium, which you pay whether you are sick or healthy, the Medicare Advantage OOP maximum is a ceiling you only hit when things go wrong.

Compare that to Plan G. Your total annual cost is your Plan G premium (typically $100 to $250 per month depending on age and carrier) plus the Part B deductible ($257 in 2026). That is it. No copays for doctor visits. No coinsurance for hospital stays. No per-day charges. If you are hospitalized for two weeks, your cost is zero beyond what you have already paid. The premium feels expensive until you run the numbers against a year with significant healthcare use.

Annual Cost Comparison: Plan G vs $0 Premium Medicare Advantage

Healthcare Use Level	Plan G Annual Cost	$0 Premium MA Annual Cost	Difference
Minimal (healthy, 2–3 visits)	$1,500–$3,200 (premium + deductible)	$300–$800 (copays only)	MA saves $700–$2,400
Moderate (1 surgery, specialist visits)	$1,500–$3,200 (premium + deductible)	$2,500–$5,000 (copays + coinsurance)	Plan G saves $1,300–$1,800
High (hospitalization, chronic condition)	$1,500–$3,200 (premium + deductible)	$5,000–$9,350 (approaching OOP max)	Plan G saves $3,500–$6,150
Catastrophic (major surgery, ICU)	$1,500–$3,200 (premium + deductible)	$9,350 (OOP max hit)	Plan G saves $6,150–$7,850

The break-even point for most Florida beneficiaries is roughly 3–4 moderate healthcare events per year. Beyond that threshold, Plan G almost always costs less in total annual spending.

Prior Authorization: The Hidden Barrier in Medicare Advantage

Prior authorization is the process by which your Medicare Advantage plan must approve certain medical services before you receive them. It is one of the most consequential — and least discussed — differences between Medicare Advantage and Original Medicare with a Medigap plan.

Under Original Medicare, prior authorization is rarely required. You and your doctor decide what care you need, and Medicare pays its share. With Medicare Advantage, the plan inserts itself between you and your doctor for a wide range of services: elective surgeries, specialist referrals, imaging studies (MRI, CT, PET scans), durable medical equipment, home health services, skilled nursing facility admissions, and many prescription drugs.

The practical impact is significant. A prior authorization request can take days or weeks. It can be denied — and denials are common. A 2022 report by the HHS Office of Inspector General found that Medicare Advantage plans denied 13% of prior authorization requests that met Medicare coverage rules. In other words, more than 1 in 8 approvals that should have been granted under standard Medicare criteria were initially denied. Many of those denials were eventually overturned on appeal — but the process takes time, creates stress, and can delay necessary care.

The consequences of prior authorization delays are not abstract. A patient waiting for approval for a knee replacement lives in pain longer. A patient whose imaging is denied may have a diagnosis delayed. A patient discharged from a hospital who needs skilled nursing care may be denied admission to a facility because the plan has not yet approved it. These are not hypothetical scenarios — they are documented patterns in Medicare Advantage plan administration.

Medicare Supplement plans do not require prior authorization for Medicare-covered services. If Medicare approves a service, your Medigap plan pays its share. Period. There is no second layer of approval, no appeals process, no waiting for a plan administrator to review your doctor's recommendation. This is one of the most underappreciated advantages of the Medigap model, and it becomes increasingly important as you age and your healthcare needs become more complex.

CMS has implemented new prior authorization rules for Medicare Advantage plans starting in 2024, requiring faster decisions and more transparency. However, the fundamental structure — plans reviewing and approving care before it is delivered — remains in place.

Provider Networks: What "In-Network" Really Means in Florida

Medicare Advantage plans restrict your care to a network of contracted providers. For most enrollees, this is not a problem most of the time — their primary care doctor is in-network, their local hospital is in-network, and routine care proceeds without issue. The network restriction becomes a serious problem in specific, high-stakes situations.

Specialist access is the most common friction point. If you need a cardiologist, an oncologist, a neurologist, or a rheumatologist, your plan's network may have limited options in your area. In rural parts of Florida — Putnam County, Flagler County, parts of Volusia County — specialist networks can be thin. You may be referred to a specialist who is not accepting new patients, or you may need to travel significant distances to see an in-network provider.

Hospital networks are the highest-stakes issue. If you are in a medical emergency and transported to the nearest hospital, that hospital may or may not be in your Medicare Advantage plan's network. Out-of-network emergency care is covered at in-network rates under federal law — but follow-up care, specialist consultations during your hospital stay, and post-acute care may not be. A single hospitalization can generate bills from multiple providers, some in-network and some not.

The snowbird problem is real and underappreciated. Millions of Florida residents spend part of the year in other states — visiting family, escaping summer heat, or maintaining a second residence. Medicare Advantage plans cover emergency and urgent care outside the service area, but routine care is not covered out-of-area. If you spend three months in North Carolina or Ohio, you cannot see a primary care doctor, get a prescription refilled through your plan, or have a non-emergency procedure done. Original Medicare with a Medigap plan covers you anywhere in the United States that accepts Medicare — which is virtually everywhere.

Plan networks also change annually. A hospital or specialist that is in-network this year may not be next year. Carriers renegotiate contracts, and providers leave networks. You may enroll in a plan because your oncologist is in-network, and discover at the start of the following year that she is no longer contracted with your plan. With Original Medicare, your relationship with your providers is not contingent on any plan's contracting decisions.

Before enrolling in any Medicare Advantage plan, verify that your specific doctors — not just their practice group — are contracted with the plan. Use the plan's online directory and call the doctor's office directly to confirm, as directories are often outdated.

How Medigap Premiums Are Set — and Why It Matters Long-Term

One of the most important factors in choosing a Medicare Supplement plan is understanding how the carrier sets and increases premiums over time. There are three rating methods, and they have dramatically different implications for your long-term costs.

Community-Rated (No-Age-Rated)

Every enrollee pays the same premium regardless of age. A 65-year-old and an 85-year-old pay the same monthly rate. Premiums can still increase over time due to inflation and claims experience, but your age does not cause your premium to rise.

Best for long-term cost stability. Premiums tend to start higher but grow more slowly relative to your age.

Issue-Age-Rated

Your premium is based on the age at which you first enroll and does not increase as you get older. A 65-year-old who enrolls pays a lower rate than a 70-year-old who enrolls, and that difference is locked in.

Rewards early enrollment. Premiums can still increase due to inflation, but your age at enrollment sets your base rate permanently.

Attained-Age-Rated

Your premium increases as you age. You may start with a low premium at 65, but the rate rises each year as you get older — in addition to any general rate increases the carrier applies.

Most common in Florida. Premiums start lower but can become significantly more expensive in your 70s and 80s when healthcare use typically increases.

Florida is primarily an attained-age-rated market. Most carriers in the state use attained-age pricing, which means your premium will increase both because of general rate trends and because of your advancing age. This is why enrolling at 65 — when you have guaranteed issue rights and the lowest attained-age rate — is so important. Waiting even a few years means starting at a higher age-based rate and potentially facing medical underwriting.

Medigap premium increases in Florida have historically averaged 3–7% per year, though some carriers have had higher increases in specific years. When comparing carriers, ask for their rate increase history over the past 5–10 years — not just their current premium. A carrier with a lower current premium but a history of large annual increases may cost more over a 10-year period than a carrier with a slightly higher starting premium and more stable rate history.

An independent broker can pull rate increase history for every carrier in your area — something you cannot easily do on your own. This historical data is one of the most valuable inputs in choosing a Medigap carrier.

The Enrollment Window You Cannot Afford to Miss

The Medigap Open Enrollment Period is the single most important timing concept in Medicare. It is a one-time, six-month window that begins the month you turn 65 and enroll in Medicare Part B. During this window, you have guaranteed issue rights: every carrier must sell you any Medigap plan they offer at standard rates, regardless of your health history.

Guaranteed issue means no medical underwriting. The carrier cannot ask about your health conditions, cannot charge you more because of pre-existing conditions, and cannot deny your application. You have the same access to coverage as a perfectly healthy 65-year-old, even if you have diabetes, heart disease, COPD, cancer history, or any other condition.

Once your Medigap OEP closes, that protection is gone in most states — including Florida. Florida does not have a continuous open enrollment period, a birthday rule, or an anniversary rule for Medigap. After your initial OEP, carriers can use full medical underwriting to evaluate your application. Common conditions that lead to denial or surcharges include: diabetes (especially with complications), heart disease or prior heart attack, stroke or TIA history, COPD or emphysema, cancer within the past 2–5 years, kidney disease, obesity, and many others.

The guaranteed issue window also applies in a few other specific situations: if you lose employer coverage, if your Medicare Advantage plan leaves your area or loses its Medicare contract, or if you move out of your plan's service area. These are narrow exceptions. The 65-and-Part-B window is by far the most reliable and widely applicable guaranteed issue opportunity.

This is why the choice between Medicare Advantage and Medicare Supplement at 65 carries long-term consequences that go beyond the immediate cost comparison. If you choose Medicare Advantage at 65 and your health declines over the next five years, you may find yourself unable to qualify for a Medigap plan when you want to switch. You would be locked into the Medicare Advantage system — with its networks, prior authorizations, and variable costs — precisely when your healthcare needs are greatest.

Month 1

Turn 65 and enroll in Part B — Medigap OEP begins

Months 1–6

Guaranteed issue window — any carrier, any plan, no underwriting

Month 7+

OEP closes — medical underwriting applies in Florida

Oct 15–Dec 7

Annual Enrollment Period — can switch MA plans or add/drop Part D

Jan 1–Mar 31

MA Open Enrollment — can switch MA plans or return to Original Medicare (Medigap underwriting still applies)

If you are approaching 65, the most important thing you can do is understand your Medigap OEP start date and make your coverage decision before that window closes. Working with an independent broker 60–90 days before your 65th birthday gives you time to compare options without pressure.

Florida-Specific Considerations for 2026

Florida is one of the largest Medicare markets in the country, with over 4.8 million Medicare beneficiaries. The state has unique characteristics that affect both Medicare Advantage and Medicare Supplement decisions.

No Birthday Rule

Several states — California, Oregon, Idaho, Illinois, Nevada, and others — have enacted birthday rules that give Medigap enrollees a brief annual window to switch plans without underwriting. Florida has not adopted a birthday rule. Once your initial OEP closes, you are subject to full medical underwriting for any Medigap application. This makes the initial enrollment decision even more consequential in Florida than in states with ongoing switching rights.

High Medicare Advantage Penetration

Florida has one of the highest Medicare Advantage enrollment rates in the country, with roughly 55–60% of Medicare beneficiaries enrolled in MA plans in many counties. This high penetration reflects aggressive marketing, competitive plan offerings, and the appeal of $0 premiums for retirees on fixed incomes. It does not necessarily reflect superior outcomes — research consistently shows that Original Medicare with a Medigap plan produces better access to care and lower out-of-pocket costs for high healthcare users.

County-Level Plan Variation

Medicare Advantage plan availability varies significantly by county in Florida. Duval County (Jacksonville) and Volusia County (Daytona Beach) have robust plan competition with many carriers offering $0 premium options. Putnam County and parts of Flagler County have fewer plan options and thinner provider networks. Before choosing Medicare Advantage, verify what plans are actually available in your specific county and whether your preferred providers are in-network.

Medigap Carrier Competition

Florida has strong Medigap carrier competition, with 20+ carriers offering Plan G in most counties. This competition keeps premiums relatively competitive compared to states with fewer carriers. An independent broker can compare rates across all carriers in your ZIP code — a process that takes minutes with the right tools but would take hours to replicate on your own.

Snowbird and Travel Considerations

A significant portion of Florida's Medicare population spends part of the year in other states. If you travel regularly or maintain a residence outside Florida, Medicare Advantage's service area restrictions are a serious practical limitation. Original Medicare with a Medigap plan is the only option that provides full, unrestricted coverage anywhere in the United States.

Part D Landscape

Florida has a competitive standalone Part D market. If you choose Original Medicare with a Medigap plan, you will need to add a standalone Part D plan for prescription drug coverage. Premiums range from roughly $15 to $100+ per month depending on your drug needs. An independent broker can help you identify the Part D plan that covers your specific medications at the lowest total cost — premium plus copays.

Why More Beneficiaries Are Leaving Medicare Advantage

Medicare Advantage enrollment grew rapidly throughout the 2010s and early 2020s, driven by $0 premiums, extra benefits, and aggressive marketing. Starting in 2023 and accelerating through 2025–2026, a notable trend has emerged: disenrollment rates are rising as beneficiaries encounter the realities of network restrictions, prior authorization denials, and accumulating out-of-pocket costs.

CMS data shows that Medicare Advantage disenrollment — beneficiaries leaving MA plans to return to Original Medicare — has increased in each of the past three years. The most common reasons cited in beneficiary surveys: difficulty getting prior authorizations approved, inability to see preferred specialists, unexpected out-of-pocket costs, and plan instability (benefit changes, network changes, or plan exits at annual renewal).

Plan instability is a particularly underappreciated issue. Medicare Advantage plans can and do change their benefits, premiums, copays, formularies, and provider networks every year. A plan that works well for you in 2026 may look very different in 2027. Carriers have exited markets entirely — United Healthcare, Humana, and others have withdrawn from specific counties or states when profitability targets were not met, leaving enrollees scrambling to find new coverage during the Annual Enrollment Period.

The disenrollment problem is compounded by the Medigap underwriting issue. Beneficiaries who want to leave Medicare Advantage and return to Original Medicare with a Medigap plan often find that their health has changed since they were 65. They may be denied Medigap coverage or quoted significantly higher premiums. Some are forced to remain in Medicare Advantage not because they prefer it, but because they cannot qualify for the Medigap coverage they now want.

This pattern — choose MA at 65 for the $0 premium, experience health changes, want to switch to Medigap, discover you cannot qualify — is one of the most common and preventable Medicare mistakes William Gray encounters in his practice. The solution is not to avoid Medicare Advantage categorically, but to understand the switching risk before you make the initial decision.

CMS has proposed and implemented several reforms to Medicare Advantage in 2024–2026, including stricter prior authorization rules, enhanced network adequacy standards, and increased oversight of marketing practices. These reforms address real problems but do not eliminate the fundamental structural differences between MA and Medigap.

A 7-Question Framework for Making Your Decision

After 25+ years of helping Florida residents navigate this choice, William Gray has developed a practical framework for thinking through the Medicare Advantage vs Medicare Supplement decision. Work through these seven questions honestly — your answers will point you toward the right path.

How is your health today, and what do you expect over the next 10–20 years?

If you are in excellent health with no chronic conditions, Medicare Advantage's lower upfront cost may be attractive. If you have ongoing health conditions — or a family history that suggests you will — the predictable costs and unlimited access of a Medigap plan become much more valuable. Be honest about your health trajectory, not just your current status.

Can you afford a Medigap premium?

Plan G premiums in Florida typically run $100–$250 per month for a 65-year-old, depending on carrier and gender. If that premium is genuinely unaffordable on your fixed income, Medicare Advantage may be your only realistic option. If you can afford it — even with some sacrifice — the long-term financial protection is usually worth it.

Do you have specific doctors or specialists you want to keep?

If you have established relationships with specific physicians — a cardiologist, an oncologist, a rheumatologist — verify whether they are in-network with any Medicare Advantage plans you are considering. If they are not, or if they are in-network now but may not be next year, a Medigap plan that lets you see any Medicare-accepting provider is the safer choice.

Do you travel or spend time outside Florida?

If you spend significant time in other states — visiting family, maintaining a second home, or traveling — Medicare Advantage's service area restrictions are a real practical problem. Original Medicare with a Medigap plan is the only option that provides full coverage anywhere in the US.

How do you feel about prior authorizations and insurance company involvement in your care?

Some people are comfortable navigating prior authorization processes and do not mind the administrative friction. Others find it stressful, time-consuming, and contrary to their expectations of how healthcare should work. Be honest about your tolerance for this kind of bureaucratic involvement in your medical decisions.

Are you enrolling at 65 with guaranteed issue rights?

If you are enrolling at 65 during your Medigap OEP, you have a one-time opportunity to get any Medigap plan without underwriting. This is the best possible time to enroll in a Medigap plan. If you are past 65 and considering switching from Medicare Advantage, your health history will be evaluated — and depending on your conditions, you may or may not qualify.

What is your risk tolerance for variable costs?

Medicare Advantage's cost structure is variable — you pay more when you use more care. Medigap's cost structure is fixed — you pay your premium regardless of how much care you use. If you are the kind of person who values predictability and dislikes financial surprises, Medigap's fixed-cost model is a better fit for your psychology as well as your finances.

There is no universally correct answer to the Medicare Advantage vs Medicare Supplement question. But there is a correct answer for your specific situation — one that accounts for your health, your budget, your providers, your lifestyle, and your risk tolerance. An independent broker can help you work through these questions and model the actual costs for your specific circumstances.

The Independent Broker's Honest Take

After 25+ years helping Florida residents navigate Medicare, William Gray's honest assessment is this: for most people who can afford the premium, Medicare Supplement Plan G provides superior long-term value. The unlimited provider access, near-zero out-of-pocket costs, and freedom from prior authorizations make it the more reliable choice — especially as you age and your healthcare needs grow. Medicare Advantage is a legitimate option for healthy enrollees on tight budgets, but the switching risk is real and often underestimated. The decision you make at 65 can be very difficult to reverse.

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