Step‑By‑Step Guide to Changing Your Medicare Coverage During Open Enrollment

Every fall, Medicare’s Annual Enrollment Period (AEP) gives you a chance to fix what isn’t working in your coverage. If your premiums feel too high, your doctors changed networks, or your prescriptions aren’t covered like they used to be, this is when you can switch plans.

Below is a clear, practical path to follow so you can change your Medicare coverage with confidence.

Know What You’re Allowed To Change During AEP

The Annual Enrollment Period runs October 15 to December 7 each year. During this time, you can:

• Switch from Original Medicare to a Medicare Advantage (Part C) plan
• Switch from Medicare Advantage back to Original Medicare
• Change from one Medicare Advantage plan to another
• Join, drop, or switch a stand‑alone Part D prescription drug plan

Any changes you make usually start January 1 of the next year.

Review Your Current Coverage Carefully

Start with what you already have:

• Read your plan’s Annual Notice of Change (ANOC) and Evidence of Coverage (EOC) to see how premiums, copays, and coverage will change next year.
• Look at your total yearly costs, not just the premium: deductibles, copays, and coinsurance.
• Make a list of your doctors, preferred hospitals, and pharmacies, plus every prescription drug, including dosage and how often you take it.

This list becomes your checklist when comparing new plans.

Compare New Plans Side by Side

Use your information to compare options:

• Check each plan’s provider network: Are your doctors, specialists, and hospitals in‑network?
• Verify drug coverage (formulary): Are all your medications covered, and in what tier?
• Estimate out‑of‑pocket costs: Look at premiums, deductibles, and copays together.
• For Medicare Advantage, review extra benefits (such as dental, vision, hearing, or fitness) and weigh them against network limits and referral rules.

The best plan is usually the one that covers your actual doctors and drugs at the lowest realistic total cost, not just the lowest premium.

Make the Switch: How to Enroll in a New Plan

Once you’ve chosen:

• Enrolling in a Medicare Advantage or Part D plan: You can enroll online, by phone, or with a licensed agent. You’ll need your Medicare card (with your Medicare Number and Part A/Part B start dates).
• Switching from one Medicare Advantage or Part D plan to another: Enrolling in the new plan automatically cancels your old plan as of the effective date.
• Going from Medicare Advantage back to Original Medicare: Enroll in a stand‑alone Part D plan if you need drug coverage, and explore a Medigap (Medicare Supplement) policy if you want help with deductibles and coinsurance. Medigap enrollment rules can be stricter, so timing matters.

Always keep records of your enrollment confirmation and any correspondence.

Double‑Check Before the New Year Starts

After you enroll:

• Review your plan confirmation to ensure your doctors and drugs are listed as expected.
• Watch for your new member ID card and welcome materials.
• In January, verify that your pharmacy and providers have your updated coverage on file.

Switching Medicare plans during Open Enrollment is manageable if you treat it as a structured checklist: review what you have, compare based on your real needs, enroll once you’re confident, and confirm everything before your new coverage begins.