Medicare Enrollment: 5 Costly Mistakes to Avoid
Medicare enrollment seems straightforward until you realize a single mistake can cost you thousands in penalties or coverage gaps. Here are the five most expensive errors and how to avoid them.
Mistake #1: Missing Your Initial Enrollment Period
The Problem: Your Initial Enrollment Period (IEP) begins three months before you turn 65 and ends three months after. Missing this window triggers late enrollment penalties that last forever.
The Cost: Part B penalty is 10% for each 12-month period you should have been enrolled. Wait two years? Your penalty is 20% for life.
How to Avoid: Mark your calendar six months before turning 65. If you're still working with employer coverage (20+ employees), you may qualify to delay without penalty, but confirm this in writing.
Mistake #2: Assuming Medicare Covers Everything
The Problem: Original Medicare (Parts A and B) has significant gaps. You'll pay:
Part A: $1,632 deductible per hospital stay (2026)
Part B: $257 annual deductible plus 20% coinsurance
No out-of-pocket maximum
No prescription drug coverage
The Cost: A serious illness could cost tens of thousands out-of-pocket.
How to Avoid: Choose either Medicare Advantage (all-in-one coverage) or Original Medicare plus Medigap and Part D. Compare costs based on your health needs and preferred doctors.
Mistake #3: Not Enrolling in Part D
The Problem: "I don't take any medications, so I'll skip Part D." If you go 63+ days without creditable prescription coverage, you'll pay a penalty when you finally enroll.
The Cost: 1% of the national base premium for each month without coverage. This might seem small, but it's permanent and increases as drug costs rise.
How to Avoid: Enroll in a basic Part D plan even if you're healthy. Plans start around $7/month in many areas. It's cheaper than the lifetime penalty.
Mistake #4: Choosing the Wrong Medigap Plan
The Problem: Medigap has guaranteed issue rights during your initial enrollment. Wait, and insurers can deny you or charge more based on health conditions.
The Cost: Higher premiums or inability to get coverage when you need it most.
How to Avoid: If choosing Original Medicare, enroll in Medigap during your six-month window starting when you turn 65 and enroll in Part B. Compare plans carefully—you can't have both Medigap and Medicare Advantage.
Mistake #5: Not Reviewing Coverage Annually
The Problem: Medicare Advantage and Part D plans change every year. Your current plan's costs, coverage, and provider network can shift significantly.
The Cost: Paying more than necessary or discovering your medications aren't covered when you need them.
How to Avoid: Review your coverage every October during Annual Enrollment Period (Oct 15 - Dec 7). Check:
Premium changes
Formulary updates (drug coverage)
Provider network changes
Out-of-pocket maximums
Extra benefits
Getting Help
Medicare decisions are complex and personalized. What works for your neighbor may be wrong for you. We help you:
Understand your enrollment timeline
Compare plans based on your specific needs
Avoid costly penalties
Navigate Annual Enrollment
Don't let these mistakes cost you thousands. Schedule a free Medicare consultation today.