Common Medicare Mistakes Florida Seniors Make in 2026 -- And How to Avoid Them

In 15+ years of helping Florida seniors navigate Medicare, I've seen the same mistakes made over and over. Some are minor inconveniences. Others cost thousands of dollars -- permanently.

Here are the 10 most common Medicare mistakes Florida seniors make, and exactly how to avoid them.

The mistake: Assuming Medicare enrollment is automatic, or waiting too long to enroll in Part B.

The consequence: A permanent late enrollment penalty of 10% added to your Part B premium for every 12-month period you were eligible but didn't enroll. If you delay 3 years, you pay 30% more -- forever.

The Florida context: Many Florida retirees delay Part B because they're still on a spouse's employer plan or COBRA. COBRA does NOT count as creditable coverage that waives the Part B penalty. Employer coverage from your own (or spouse's) current employer does.

How to avoid it: Enroll in Part B during your Initial Enrollment Period (7 months centered on your 65th birthday) unless you have active employer coverage from a current employer with 20+ employees.

The mistake: Skipping Part D because "I don't take many medications."

The consequence: A permanent Part D late enrollment penalty of 1% of the national base premium for every month you went without creditable drug coverage. On a $40/month plan, a 24-month delay adds $9.60/month -- permanently.

How to avoid it: Enroll in a low-cost Part D plan ($10-$20/month) even if you take no medications. It's cheap insurance against the penalty, and you can switch to a better plan during AEP if your drug needs change.

The mistake: Picking the $0-premium Medicare Advantage plan without checking networks, formularies, or OOP maximums.

The consequence: Your doctor isn't in-network. Your medication is on Tier 4. Your OOP maximum is $4,500. What looked like a free plan costs thousands.

Florida example: A Daytona Beach senior chose a $0-premium HMO because it was "free." Her cardiologist at Halifax Health wasn't in-network. She paid $300+ per specialist visit out of pocket.

How to avoid it: Compare total annual cost -- premium + expected copays + drug costs -- not just the monthly premium. I run this analysis for every client before making a recommendation.

The mistake: Assuming your current doctors accept your new Medicare Advantage plan.

The consequence: You enroll, then discover your primary care doctor, cardiologist, or specialist isn't in-network. You either pay out-of-network rates or find a new doctor.

Florida context: Florida has a large number of independent specialist practices that selectively participate in Medicare Advantage networks. Don't assume -- verify.

How to avoid it: Before enrolling in any Medicare Advantage plan, call each of your doctors' offices and ask: "Do you accept [Plan Name] for 2026?" Provider directories are often outdated. The phone call is the only reliable verification.

The mistake: Throwing away the Annual Notice of Change (ANOC) that your plan mails in September.

The consequence: You don't realize your plan changed its network, raised its OOP maximum, or moved your medication to a higher tier -- until you're at the doctor's office or pharmacy in January.

How to avoid it: Read your ANOC every September. It lists every change to your plan for the coming year. If anything has changed that affects your care, use AEP (October 15 - December 7) to switch plans.

The mistake: Florida snowbirds enrolling in Medicare Advantage HMO plans without understanding the service area restrictions.

The consequence: You're in New York for 5 months and need to see your cardiologist. Your Florida HMO only covers emergency care outside its service area. You pay out of pocket for every non-emergency visit.

How to avoid it: Snowbirds should choose Original Medicare + Medigap (works anywhere in the US) or a Medicare Advantage PPO with a strong nationwide network. Never enroll in an HMO if you regularly receive care in another state.

The mistake: Waiting to enroll in Medigap until after the 6-month guaranteed issue window (which starts when you're both 65 and enrolled in Part B).

The consequence: After the window closes, insurers can ask health questions and deny coverage based on pre-existing conditions. A senior with diabetes, heart disease, or COPD may be unable to get Medigap at any price.

How to avoid it: If you want Medigap, enroll during your guaranteed issue window. Don't wait to "see how Medicare Advantage works out" -- if you develop a health condition, you may be locked out of Medigap permanently.

The mistake: Auto-renewing your Medicare Advantage or Part D plan every year without reviewing it.

The consequence: Your plan's benefits, premium, network, and formulary may have changed significantly. You're paying more or getting less than you could be.

Florida context: Florida's Medicare market is highly competitive. New plans enter the market every year, and existing plans adjust their benefits. A plan that was the best value in 2024 may not be the best value in 2026.

How to avoid it: Review your plan every October before the December 7 AEP deadline. I do this for every client -- it takes 15 minutes and often saves hundreds of dollars.

The mistake: Choosing a Medicare Advantage plan without checking its CMS star rating.

The consequence: Low-rated plans (1-2 stars) have worse outcomes, more complaints, and less reliable coverage. CMS can terminate plans with persistently low ratings.

How to avoid it: Stick with plans rated 4 stars or higher when possible. In Florida, most major carriers (Aetna, Humana, UnitedHealthcare, Devoted Health) have 4-4.5 star plans available.

The mistake: Assuming you don't qualify for financial assistance with Medicare costs.

The consequence: Paying full Part D premiums, deductibles, and copays when you could qualify for Extra Help (Low-Income Subsidy) that reduces costs to near zero.

Florida programs to know:

• Extra Help (LIS): Federal program for Part D costs. Income limit ~$22,000/year individual.
• Medicare Savings Programs: Florida Medicaid programs that pay your Part B premium and sometimes Part A costs. Income limits vary by program.
• SHINE (Serving Health Insurance Needs of Elders): Free Medicare counseling from Florida's SHIP program. Available in every Florida county.

How to avoid it: If your income is below $30,000/year (individual), ask me or contact SHINE to check your eligibility for assistance programs.

Most of these mistakes are completely avoidable with the right information and a few minutes of review each year. That's exactly what I provide -- free, no-pressure Medicare guidance for Florida seniors.

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 to get information on all of your options.