Medicare Advantage vs Medicare Supplement
This is the biggest Medicare decision you will make. Here is an honest, no-spin comparison of both options — what they actually cost, what they actually cover, and which one fits your life.
As an independent broker I represent both types of plans. I have no incentive to push you toward one or the other — only toward the right fit for you.
Two Very Different Ways to Get Medicare Coverage
When you turn 65, you have two main paths for Medicare coverage. Both use Original Medicare as the foundation — but they work completely differently in practice.
Medicare Supplement (Medigap)
You keep Original Medicare (Parts A & B) and add a private Medigap policy that pays your out-of-pocket costs. You also need a separate Part D drug plan.
- Any doctor who accepts Medicare — nationwide
- Predictable costs — few or no surprise bills
- No networks, no referrals, no prior auth
- Monthly premium: $90–$200+ for Plan G
- No extra benefits (dental/vision separate)
Medicare Advantage
A private insurance plan that replaces Original Medicare. The plan covers everything Medicare covers — plus often dental, vision, and hearing — through a managed care network.
- Low or $0 monthly premium
- Extra benefits: dental, vision, hearing, gym
- Network of doctors — must stay in-network (HMO) or pay more (PPO)
- Copays and coinsurance at each service
- Out-of-pocket max: up to $9,350 in-network (2026)
Side-by-Side Comparison
| Feature | Medicare Supplement | Medicare Advantage |
|---|---|---|
| Monthly premium | $90–$200+ (Plan G) | $0–$100 (many $0 plans) |
| Part B deductible ($283) | You pay (Plan G) | Varies by plan |
| Doctor choice | Any Medicare doctor — nationwide | In-network only (HMO) or higher cost (PPO) |
| Referrals needed | No | Yes (HMO) / No (PPO) |
| Prior authorization | No | Yes — common for procedures |
| Out-of-pocket maximum | Effectively $0 (Plan G after deductible) | Up to $9,350 in-network (2026) |
| Dental coverage | No (separate plan needed) | Usually included (limited) |
| Vision coverage | No (separate plan needed) | Usually included (limited) |
| Hearing coverage | No (separate plan needed) | Often included |
| Prescription drugs | Separate Part D plan required | Usually included (Part D built in) |
| Travel coverage | Yes — any Medicare provider nationwide | Limited to emergency out-of-network |
| Predictability of costs | Very high | Moderate — depends on usage |
| Medical underwriting | Yes (outside open enrollment) | No — guaranteed issue |
| Plan changes | Can switch anytime (with underwriting) | Annual election period (Oct 15–Dec 7) |
Medicare Advantage: The Full Picture
Advantages
- Low or $0 monthly premium — frees up cash flow
- Dental, vision, hearing often included
- Gym memberships (SilverSneakers) common
- Drug coverage usually built in (no separate Part D)
- Annual out-of-pocket maximum protects against catastrophic costs
- Over-the-counter allowances on some plans
- Transportation benefits on some plans
- No medical underwriting — guaranteed issue
Disadvantages
- Network restrictions — your doctor may not be in-network
- Prior authorizations can delay or deny care
- Copays add up — $20–$50 per visit, $300–$400/day hospital
- Out-of-pocket max up to $9,350 in-network (2026)
- Plans change annually — benefits, networks, formularies
- Limited coverage when traveling outside service area
- Referrals required for specialists (HMO plans)
- Harder to switch to Medigap later if health declines
The hidden cost of Medicare Advantage: A $0 premium plan sounds great — until you have a major health event. A hospital stay with $300/day copays for 10 days = $3,000. Add specialist visits, imaging, and rehab and you can hit the $9,350 out-of-pocket maximum in a serious illness year. Medigap Plan G would have cost you $1,200–$2,400 in premiums for the year with near-zero out-of-pocket.
Medicare Supplement: The Full Picture
Advantages
- See any doctor or specialist who accepts Medicare — no networks
- No referrals, no prior authorizations
- Predictable costs — know your maximum exposure upfront
- Works nationwide — great for snowbirds and travelers
- Plan G: pay $283 deductible once, then $0 for covered services
- Cannot be cancelled due to health changes
- No annual plan changes — your coverage stays stable
- Best for people with chronic conditions needing frequent care
Disadvantages
- Higher monthly premium ($90–$200+ for Plan G)
- No dental, vision, or hearing coverage included
- Separate Part D drug plan required (additional premium)
- Medical underwriting outside open enrollment period
- Premiums increase with age each year
- No extra perks like gym memberships or OTC allowances
- Total monthly cost (Medigap + Part D) can be $150–$300+
Medicare Advantage HMO vs PPO
If you choose Medicare Advantage, you will likely choose between an HMO and a PPO. Here is how they differ:
HMO (Health Maintenance Organization)
- Must use in-network providers
- Primary care doctor required
- Referrals needed for specialists
- Out-of-network care not covered (except emergencies)
- Lower premiums and copays than PPO
- Largest plan type in Florida
Best for people who have established relationships with in-network doctors and rarely need out-of-area care.
PPO (Preferred Provider Organization)
- Can see out-of-network providers (higher cost)
- No primary care doctor required
- No referrals for specialists
- Out-of-network coverage available (at higher cost)
- Higher premiums than HMO
- More flexibility for travelers
Best for people who want more flexibility or split time between Florida and another state.
Snowbirds beware: If you spend part of the year in another state, an HMO plan will only cover emergency care outside your service area. A PPO or Medicare Supplement is a much better fit for people who split time between states.
Switching Between Plans — What You Need to Know
Switching from Medigap to Medicare Advantage
You can switch from Medigap to Medicare Advantage during the Annual Enrollment Period (October 15 – December 7). No underwriting required — Medicare Advantage is guaranteed issue. Your Medigap plan ends when your Advantage plan begins.
Switching from Medicare Advantage to Medigap — The Hard Part
This is where people get stuck. Outside of guaranteed issue periods, Florida Medigap insurers can use medical underwriting. If you have developed health conditions while on Medicare Advantage, you may be denied Medigap coverage entirely.
Guaranteed Issue Windows for Switching to Medigap:
- • First 12 months on Medicare Advantage (trial right) — guaranteed issue to return to Medigap
- • Medicare Advantage plan leaves your service area
- • Medicare Advantage plan goes bankrupt
Switching Between Medicare Advantage Plans
You can switch Medicare Advantage plans during the Annual Enrollment Period (Oct 15–Dec 7) or the Medicare Advantage Open Enrollment Period (Jan 1–Mar 31). No underwriting — guaranteed issue.
Which Plan Is Right for You?
Medicare Supplement May Be Better If:
- You have chronic conditions requiring frequent care
- You want to see any specialist without referrals
- You travel frequently or split time between states
- You want predictable, stable costs year after year
- You are willing to pay higher premiums for peace of mind
- You have doctors you love who may not be in-network
- You want zero prior authorization hassles
Medicare Advantage May Be Better If:
- You are generally healthy with few medical needs
- Budget is tight and a $0 premium matters
- You want dental, vision, and hearing in one plan
- Your preferred doctors are in the plan network
- You stay in your local area year-round
- You want gym membership and extra perks
- You are comfortable with managed care processes
My honest take: If you are healthy at 65 and on a tight budget, Medicare Advantage can work well. But I always tell people: the time to get Medigap is when you are healthy and can qualify. Once you develop a serious condition, the door to Medigap may close permanently. That is a risk worth understanding before you choose.
Frequently Asked Questions
Q.Is Medicare Advantage or Medicare Supplement better?
Neither is universally better. Medigap offers predictable costs and freedom to see any Medicare doctor. Medicare Advantage offers lower premiums and extra benefits but has networks and prior authorizations. The right choice depends on your health, finances, and priorities.
Q.Can I switch from Medicare Advantage to Medicare Supplement?
Yes, but outside your first 12 months on Medicare Advantage you will face medical underwriting in Florida. If you have developed health conditions, you may be denied. The best time to get Medigap is during your initial enrollment period at 65.
Q.What is the main difference between Medicare Advantage HMO and PPO?
An HMO requires in-network providers and referrals for specialists. A PPO allows out-of-network care at higher cost and does not require referrals. PPOs offer more flexibility but typically cost more.
Q.Does Medicare Advantage cover dental and vision?
Most plans include some dental, vision, and hearing benefits, but coverage varies widely. Routine cleanings and eye exams are common; major dental work is often limited or not covered.
Q.What is the out-of-pocket maximum for Medicare Advantage in 2026?
The maximum allowed in 2026 is $9,350 for in-network services and $14,000 combined in- and out-of-network. Individual plan limits vary — some plans set lower maximums.
Q.Can I have both Medicare Advantage and a Medicare Supplement?
No. You cannot have both at the same time. Medicare Advantage replaces Original Medicare, and Medigap only works with Original Medicare. You must choose one path.
Not Sure Which Path Is Right for You?
I help people in NE Florida compare both options every day. A free 15-minute call gives you a clear recommendation based on your specific health, budget, and doctors.
Independent broker — I represent both Medigap and Medicare Advantage carriers. No pressure, no cost.
Related Medicare Guides
We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE (TTY: 1-877-486-2048) to get information on all of your options.
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Independent Agent & Compensation Disclosure. William Gray is an independent licensed insurance agent (FL License #W690237) and is not employed by or exclusively affiliated with any single insurance company. William is compensated by insurance carriers when you enroll in a plan. This compensation does not affect the premium you pay — your premium is the same whether you enroll through a broker or directly with the carrier. Affiliated agents are independent contractors solely responsible for their own conduct and representations.