The Biggest Medicare AEP Mistakes to Avoid

10 Medicare AEP Mistakes to Avoid for 2027

Short Answer

The biggest Medicare Annual Election Period (AEP) mistakes are comparing only premiums, assuming doctors remain in network, overlooking prescription restrictions, choosing a plan for extra benefits alone, and believing AEP guarantees access to Medigap. Review the exact 2027 plan using your doctors, prescriptions, pharmacies, expected care, and total financial exposure before December 7.

1. Looking only at the monthly premium

A low premium can coexist with higher hospital copays, specialist costs, coinsurance, drug expenses, or a larger maximum out-of-pocket limit. Estimate total cost, not just the amount paid each month.

2. Asking whether a doctor accepts the carrier

A carrier may offer multiple networks. Verify the exact plan name and network for the new year with both the plan and provider.

3. Assuming last year’s drug coverage continues

Formularies, tiers, deductibles, preferred pharmacies, and prior authorization rules can change annually. Check every medication.

4. Choosing based on one advertised benefit

Dental limits, allowance cards, meals, and transportation can have eligibility rules and restricted networks. Medical and drug coverage should remain the foundation of the decision.

5. Ignoring the Annual Notice of Change (ANOC)

The notice summarizes key changes to your current plan. Read it before assuming automatic renewal is harmless.

6. Confusing AEP with Medigap open enrollment

AEP does not create a nationwide right to buy Medigap without underwriting. Confirm acceptance before leaving coverage when Medigap is part of the plan.

7. Dropping drug coverage without checking creditable coverage

A future Part D late-enrollment penalty may apply after a gap without Part D or other creditable prescription coverage.

8. Waiting until the final hours

Technical problems, missing information, or unresolved provider questions are harder to fix at the deadline. Begin early enough to make a careful choice.

9. Submitting duplicate applications

Multiple enrollments can create confusion. Know which election is intended, retain confirmation, and promptly correct mistakes.

10. Treating every household member the same

Spouses can have different medications, doctors, and priorities. Medicare coverage is individual, so compare separately.

Frequently asked questions

What documents should I bring to an AEP review?

Bring your Medicare card, current plan card, Annual Notice of Change, medication list, provider list, pharmacy preferences, and notices about upcoming care.

Can my plan call me to review coverage?

Plans and agents must follow Medicare marketing rules. Protect your Medicare number and personal information, and verify who is contacting you.

What if my plan is ending?

Read the nonrenewal notice carefully. You may have enrollment rights beyond ordinary AEP deadlines, depending on the situation.

Avoid costly surprises

Four Oaks Medicare Planning offers no-cost plan reviews for the Medicare plans we represent. Call 512-298-5404 before the December 7 deadline.