Medicare: Critical Tips and Common Mistakes

Turning 65? Time enrollment to your situation (2026 Update)

If you’re on Social Security, you’ll be auto-enrolled; otherwise, compare employer coverage (20+ employees) before starting Part B. Don’t enroll in Part A if you contribute to an HSA. Weigh fixed costs (Part B, Part D, Medigap) against out-of-pocket limits and your usage. Choose Original Medicare for flexibility or Medicare Advantage for bundled, network-based savings. Plan G offers predictability; Plan N trades copays for lower premiums. Avoid gaps to preserve special enrollment rights—and discover the smart moves next.

Important Considerations

• Confirm Enrollment: If you are already receiving Social Security, you are auto-enrolled. If you have large employer coverage (20+ employees), you can often decline Part B to avoid duplicate premiums.

• HSA Critical Rule: Do not enroll in Part A if you contribute to a Health Savings Account (HSA). It stops your tax-free contributions.

• Compare Total Costs: Weigh premiums against the new 2026 deductibles ($283 for Part B) and the new prescription drug cap ($2,100).

• Understand the “Hidden” Deductibles: Medicare Advantage plans often market “$0 premiums,” but many have medical and drug deductibles you must pay before coverage kicks in.

Medicare Enrollment Basics at 65

Ready to turn 65? If you’re already taking Social Security, you’ll be auto-enrolled in Medicare and receive your card about 100 days before your birthday.

• Part A is typically premium-free if you worked 40 quarters.

• Part B has a standard $202.90 monthly premium (up from previous years). High earners may pay IRMAA if 2024 income exceeded $109,000 (single) or $218,000 (joint).

• If you don’t want Part B, sign and return the card to get Part A only.

• Keep continuous coverage—through Medicare Part B or another qualifying plan—to avoid gaps and protect special enrollment rights.

Coordinating Employer Coverage With Medicare

Although you don’t have to switch at 65 if you’re covered by a large employer plan (20+ employees), you should compare that coverage to Medicare to see which is better.

• Confirm your employer’s size and whether the plan is creditable.

• If you’re taking Social Security, Part A starts automatically; you can decline Part B by returning the signed card to avoid duplicate coverage.

• Stop HSA contributions before Part A starts. If you delay Medicare to keep contributing to an HSA, ensure you stop contributions 6 months before you eventually enroll in Part A to avoid tax penalties.

Comparing Costs: Premiums, Deductibles, and Out-of-Pocket Limits

How do you spot the better deal? Start by tallying fixed costs versus usage costs.

1. Fixed Costs: Part B ($202.90/mo), any IRMAA, Part D (approx. $35/mo), and a supplement like Plan G ($160–$200+/mo).

2. The Baseline Deductible: For Original Medicare, you pay the first $283 of doctor/outpatient bills yourself.

3. The Ceiling: Check the annual max out-of-pocket. Employer plans often cap near $8,500; Medicare with Plan G often lands closer to $5,000 total (premiums + deductible).

Original Medicare vs. Medicare Advantage (And the Hidden Deductible)

• Original Medicare (Parts A & B): You pay the Part B premium ($202.90) + a separate Part D plan. You have a known $283 annual deductible for medical care. After that, Medicare pays 80%. If you add a Medigap plan, the remaining 20% is usually covered.

• Medicare Advantage (Part C): These plans often advertise $0 premiums, but you must look closer at the deductibles:

  • Medical Deductible: Some plans charge a deductible (e.g., $500 or $1,000) that you must pay out-of-pocket before the plan pays for visits or services.

  • Drug Deductible: Most Advantage plans have a separate prescription deductible (up to $615 in 2026) that applies to brand-name drugs.

  • Hospital Costs: Instead of a simple deductible, many plans charge high daily copays (e.g., $350/day for the first 5 days). A single hospital stay can cost you $1,750+ immediately.

  • The Cap: The mandatory maximum out-of-pocket for in-network care in 2026 is $9,250, meaning you could pay far more in a bad year than with Original Medicare.

Understanding Supplemental Options: Plan G and Plan N

If you choose Original Medicare, a Medigap plan caps your costs.

• Plan G (Comprehensive): You pay the Part B deductible ($283) once per year. After that, nearly all Medicare-approved costs are covered 100%. Premiums typically run $160–$200+ monthly depending on location and age.

• Plan N (Value): Lower premiums than G, but you pay copays (up to $20 for office visits, $50 for ER) and it does not cover “Part B excess charges” (which are rare but possible).

• Note: You must have Parts A and B to enroll in either.

Drug Coverage and Part D Considerations

Major 2026 Update: The “donut hole” is effectively gone.

• The New Cap: For 2026, all Part D plans have a $2,100 annual out-of-pocket cap. Once you spend this amount on covered drugs, you pay $0 for the rest of the year.

• Enrollment: Even if you don’t take meds now, get a low-cost Part D plan to avoid late penalties.

• Shopping: Formularies change yearly. Confirm your specific drugs are in-network. The average standalone premium is roughly $35/month.

Common Pitfalls to Avoid

1. The “Free” Plan Myth: Don’t assume a $0 premium Medicare Advantage plan is free. You still pay the Part B premium ($202.90), and you may face a plan deductible plus copays up to $9,250 a year.

2. HSA Mistake: Enrolling in Part A (even premium-free) disqualifies you from making new HSA contributions.

3. The Gap Trap: Ensure you have continuous creditable coverage from age 65 until you enroll in Part B to avoid lifetime penalties.

4. IRMAA Shock: High earners (>$109k single / >$218k joint) will pay surcharges on both Part B and Part D.

Frequently Asked Questions (2026 Specs)

How Does Medicare Work if I Travel or Live Abroad? Medicare offers almost no coverage outside the 50 U.S. states and territories. Advantage plans rarely cover overseas. Medigap Plans G and N provide limited emergency coverage. Always consider travel medical insurance.

Can I Keep My Doctors?

• Original Medicare: Yes, if they accept Medicare (most do).

• Medicare Advantage: Only if they are in that specific plan’s network. Always confirm participation for the current year, as networks change annually.

How Do Dental/Vision/Hearing Fit In? Original Medicare does not cover routine dental, vision, or hearing. You must buy separate policies. Medicare Advantage plans often include these as extra perks, but coverage limits (e.g., $1,000 annual dental max) apply.

What Happens if My Spouse Is Under 65? Your spouse cannot join your Medicare plan. They must find their own coverage (employer, Marketplace, or COBRA) until they turn 65.

How Do I Appeal Late Penalties? If you are hit with a penalty but had employer coverage, file a Medicare Reconsideration. You will need Form CMS-L564 (filled out by your employer proving coverage) to correct the record.