Your Medicare Plan Is Leaving Your Area — What Now?

If you’ve received a letter saying your Medicare Advantage or drug plan won’t be offered next year, here’s the short version: your coverage isn’t ending today, you get a longer window than everyone else to pick a replacement, and if you do nothing, you’ll end up in Original Medicare on January 1 — quite possibly with no drug coverage at all. The plan leaving is not an emergency. Ignoring the letter is the only way to turn it into one.

Plans leave for ordinary business reasons. A company decides not to renew its contract with Medicare, or it renews the contract but drops the counties you live in. Either way, the result for you is the same: this plan won’t exist for you next year, and Medicare has a specific set of protections for exactly this situation. This article walks through them in the order they’ll happen.

The letter that starts it: the Plan Non-Renewal Notice

If your plan is leaving the Medicare program in the coming year, it must tell you. The Plan Non-Renewal Notice comes from your plan in October, and Medicare’s instruction to you is blunt: you must look for a new plan for coverage next year.

Don’t confuse it with the Annual Notice of Change (ANOC), which arrives a few weeks earlier. The ANOC says your plan is continuing but changing. The non-renewal notice says your plan is going away. The first one asks you to review. The second one requires a decision.

One more thing: keep the letter. Medicare specifically advises holding on to letters and notices from your plan, because you may need them later to prove your coverage ended. That proof unlocks a right most people don’t know they have — more on that below.

Nothing changes until January 1

The non-renewal takes effect with the new plan year. Your doctors, your copays, and your drug coverage all continue as normal for the rest of this year. You have weeks, not days, to decide — the letter arrives in October precisely so you can act during the fall enrollment window.

You get two windows, not one

Everyone with Medicare can change plans during fall Open Enrollment. People whose plan is non-renewing get an extra window on the other side of it.

The first window is the one to use. If you enroll in a new plan by December 7, your old coverage ends December 31 and the new plan starts January 1. Seamless.

The special window exists as a safety net, and it’s a real one — but understand what it can’t do. Your old plan still ends December 31 no matter when you enroll. If you wait until January or February to pick a new Medicare Advantage plan, you’ll spend the start of the year in Original Medicare, and if your old plan included drug coverage, you’ll spend it without a drug plan. The safety net catches you; it doesn’t rewind the calendar.

What happens if you do nothing

Medicare’s rule is plain: if you don’t join another Medicare Advantage plan before your current one ends, you’ll be enrolled in Original Medicare — Part A and Part B. Nobody moves you into a similar plan automatically, not even one from the same company.

For some people, Original Medicare is a fine destination. But landing there by default, without preparing, has two costs worth knowing about:

No drug coverage. Original Medicare doesn’t include prescription drug coverage. If your old plan was a Medicare Advantage plan with drug coverage and you don’t join a standalone Part D plan, you’ll have none. And Medicare’s late enrollment penalty starts counting after 63 days in a row without drug coverage or other creditable coverage: 1% of the national base beneficiary premium ($38.99 in 2026) for every full month you went without, added to your premium for as long as you have Medicare drug coverage. The penalty doesn’t expire when you finally enroll. It follows you.

No yearly spending cap. Medicare Advantage plans have a maximum out-of-pocket limit. Original Medicare doesn’t — there’s no yearly limit on what you pay out of pocket unless you have supplemental coverage, like a Medigap policy. Which brings up the right that makes this situation genuinely different.

The Medigap door opens — briefly

Here’s the part of a plan non-renewal that almost nobody explains. Normally, once your one-time Medigap Open Enrollment Period (the six months after you first get Part B at 65) has passed, insurance companies can use medical underwriting — they can charge you more or turn you down for health reasons.

But when your Medicare Advantage plan leaves Medicare or stops covering your area, federal law gives you a guaranteed issue right: if you switch to Original Medicare, you can buy Medigap Plan A, B, C, D, F, G, K, or L from any insurance company that sells it in your state, and the company can’t refuse you. (Plans C and F are only available if you were eligible for Medicare before January 1, 2020 — everyone newer can get Plan D or G, which cover the same things except the Part B deductible.)

The timing is strict. You can apply starting 60 days before your plan coverage ends and no more than 63 days after it ends. Your rights may last an extra 12 months in certain circumstances — your State Insurance Department can tell you what applies where you live.

Two conditions matter. This right applies only if you switch to Original Medicare, not if you join another Medicare Advantage plan. And the Medigap policy can’t start until your old plan’s coverage actually ends. This is also where that letter you saved earns its keep: you may need to include it with your Medigap application as proof your coverage was terminated.

For someone who joined Medicare Advantage years ago and has picked up health conditions since, this may be the only realistic chance to get into a Medigap policy without underwriting. It’s a door that opens for a few months and then closes. If Original Medicare plus Medigap has ever appealed to you, a plan non-renewal is the moment to think hard about it — with a standalone Part D plan added, because Medigap doesn’t cover drugs either.

What people get wrong

Assuming it’s a mistake or a scare tactic. The non-renewal notice is a required Medicare mailing, sent by your own plan. Verify it if you like — 1-800-MEDICARE can confirm your plan’s status — but don’t dismiss it.

Waiting for the special window when the regular one is open. December 8 through February exists for people who missed the fall. Using it on purpose means starting the year in Original Medicare, possibly without drug coverage. Enroll by December 7 and none of that happens.

Only shopping Medicare Advantage. A non-renewal is one of the few times the Medigap door reopens without health questions. Even if you end up choosing another Medicare Advantage plan, make that choice knowing the other path was available.

Forgetting the drug plan. People who move to Original Medicare remember the doctor coverage and forget the prescriptions. The 63-day clock doesn’t.

Where to get help

Medicare’s Plan Finder at Medicare.gov/plan-compare shows every plan available in your ZIP code for next year once the fall data posts. Your State Health Insurance Assistance Program (SHIP) offers free, unbiased counseling for exactly this kind of decision. And 1-800-MEDICARE (1-800-633-4227) is available 24 hours a day, 7 days a week; TTY users can call 1-877-486-2048.

A plan leaving your area feels like something happening to you. But between the fall window, the extended special window, and the Medigap right, this is one of the moments when Medicare gives you more options than usual, not fewer. The letter in October is your notice to go use them.

Sources: Medicare.gov, “Plan Non-Renewal Notice” (medicare.gov/basics/forms-publications-mailings/mailings/costs-and-coverage/change-in-plan-availability); Medicare.gov, “Special Enrollment Periods” (medicare.gov/basics/get-started-with-medicare/get-more-coverage/joining-a-plan/special-enrollment-periods); Medicare.gov, “Open Enrollment” (medicare.gov/health-drug-plans/open-enrollment); Medicare.gov, “When can I buy a Medigap policy?” (medicare.gov/health-drug-plans/medigap/ready-to-buy/when); Medicare.gov, “Get ready to buy” (medicare.gov/health-drug-plans/medigap/ready-to-buy); Medicare.gov, “Compare Medigap Plan Benefits” (medicare.gov/health-drug-plans/medigap/basics/compare-plan-benefits); Medicare.gov, “Avoid late enrollment penalties” (medicare.gov/basics/costs/medicare-costs/avoid-penalties); Medicare.gov, “How much does Medicare drug coverage cost?” (medicare.gov/health-drug-plans/part-d/basics/costs); Medicare.gov, “Costs” (medicare.gov/basics/costs/medicare-costs).