Medicare Advantage Plan Exits: What Happens If Your Plan Is Discontinued in 2026

Every fall, Medicare Advantage carriers announce which plans they will discontinue for the coming year. If your plan is on that list for 2026, you will get a letter — and you will have decisions to make. The good news: a discontinued plan does not leave you without coverage, and in some cases it may even open a door to Medicare Supplement coverage with no health questions. Here is what to know.

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Why Do Medicare Advantage Plans Get Discontinued?

Carriers discontinue plans for business reasons: shifting costs, low enrollment in a county, network changes, or a decision to exit a market entirely. It is a normal part of the Medicare landscape, and it tends to happen in waves — carriers typically announce exits in early October, just before the Annual Enrollment Period begins. Enrollee notices for 2026 plan changes are going out now, including in states like Oregon where members are receiving notices around early October.

A discontinued plan is not a reflection on you. It does not mean you did anything wrong, and it does not affect your underlying Medicare eligibility. To verify what is happening with your specific plan, you can also check Medicare’s official Plan Finder tool or call 1-800-MEDICARE — both can confirm whether a plan is exiting and what alternatives exist in your county for next year.

What Happens to Your Coverage

If your plan is discontinued, here is the sequence of events:

You get a notice. Your plan is required to send you a written notice explaining that the plan will not be offered next year. Read it carefully — it contains deadlines.
You get a Special Enrollment Period. Losing plan coverage through a discontinuation generally qualifies you for a Special Enrollment Period to choose new coverage.
If you do nothing, you return to Original Medicare. You will not be left uninsured — but Original Medicare alone leaves you exposed to deductibles, coinsurance, and no out-of-pocket cap, and it does not include drug coverage.
Your drug coverage needs a plan too. Most Medicare Advantage plans include Part D drug coverage. If yours did and you return to Original Medicare, you will need a standalone Part D plan — going without creditable drug coverage can trigger a late-enrollment penalty later, so do not leave this piece unaddressed.

Your Options If Your Plan Is Discontinued

Option 1: Choose another Medicare Advantage plan

During the Annual Enrollment Period (October 15 – December 7, 2026), you can enroll in a different Medicare Advantage plan available in your area. Compare networks, drug formularies, and costs — the plan that was right last year may not be the best fit among this year’s options.

Option 2: Return to Original Medicare and consider a Medicare Supplement

You can go back to Original Medicare (Parts A and B), add a Part D drug plan, and — this is the important part — you may qualify for Guaranteed Issue rights into a Medicare Supplement plan. That generally means a Medigap company must sell you a policy and cannot turn you down or charge you more because of your health or pre-existing conditions.

This is a significant opportunity for people who might not pass medical underwriting otherwise. But it comes with a strict deadline — typically you must apply within 63 days of your prior coverage ending. If you think this path might be right for you, start the conversation early, not in December.

Option 3: Original Medicare alone (usually not recommended)

You can technically rely on Original Medicare by itself, but with no out-of-pocket maximum and no drug coverage, most people find this leaves too much financial exposure. It is worth comparing real numbers before choosing this path.

Key Dates for 2026

Early October 2026: Carriers announce plan exits; enrollee notices go out (Oregon members receiving notices around October 2).
October 15 – December 7, 2026: Annual Enrollment Period — join, switch, or drop Medicare Advantage or Part D plans.
January 1, 2027: New coverage takes effect.
Within 63 days of coverage ending: Typical Guaranteed Issue application window if your plan was discontinued.

What to Do Right Now

Read your letter. Confirm whether your plan is being discontinued or just changing benefits — those are different situations.
List your must-haves. Your doctors, your prescriptions, your pharmacy, your budget. Any new plan has to work for all of them.
Compare before December 7. Whether you stay in Medicare Advantage or explore a Supplement, the Annual Enrollment Period is your main window to act for January 1 coverage.
Ask about Guaranteed Issue. If your plan is discontinued, ask a licensed producer whether GI rights apply to you and which Medigap plan letters you could buy — the answer varies by situation and state.
Do not wait until the last week. Applications take time, and GI deadlines are unforgiving.

The Bottom Line

A discontinued Medicare Advantage plan is disruptive, but it comes with built-in protections: notices, a Special Enrollment Period, and — for many people — Guaranteed Issue rights into a Medicare Supplement with no health questions. The people who come out best are the ones who read the letter early and compare their options before the December 7 deadline.

Got a discontinuation notice? Call DT Senior Insurance at 1-877-752-1350 or fill out the lead form, and a licensed insurance producer will help you understand your options — including whether Guaranteed Issue rights apply in your state.