Your Medicare Advantage Plan Is Leaving: What to Do Before December 7


November 5, 2026

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Medicare Advantage Plan Leaving? Your Options Before Dec 7

A Medicare Advantage non-renewal notice means your plan is ending, not your Medicare. This guide covers what the letter means, the options you have for next year, and the Medigap rights that may apply if you return to Original Medicare. It also shows what to check before Annual Enrollment closes on December 7, so you can choose with confidence.


Key Takeaways

  • Read your notice first. It confirms which plan is ending and when your coverage stops.
  • You can pick another Medicare Advantage plan, or return to Original Medicare with separate drug coverage and, if you choose, a Medigap policy.
  • A departing plan may give you guaranteed-issue Medigap rights, but only if you return to Original Medicare.
  • Check your doctors, prescriptions, and plan costs against the actual 2027 plan documents.
  • Annual Enrollment is not a general Medigap open enrollment, so confirm your deadlines before you decide.


A Medicare Advantage non-renewal notice raises questions about your care and coverage. Take time to understand your choices before your current plan ends.

A Medicare Advantage non-renewal notice means your plan won't continue next year. It doesn't mean you're losing Medicare itself. If you get this letter in Sonoma County, first check when your own plan ends. Then compare your choices for next year. Leave time to check whether your doctors and drugs are covered and when your new plan will start.

What Does Your Medicare Advantage Non-Renewal Notice Mean?

Your non-renewal notice explains which plan is ending and when your coverage stops. Read the full letter and keep it with your Medicare records. Follow its instructions for choosing replacement coverage. A notice about one plan doesn't establish that every plan from the insurer is leaving.

An Annual Notice of Change usually explains next year's costs and benefits. A non-renewal notice means your plan won't continue as offered. If the letter isn't clear, call the plan. Ask whether it affects your specific plan and the area where you live.

Use your plan's notice and Medicare's official information to confirm an exit. News about an insurer leaving another state or county doesn't establish what will happen to your Sonoma County coverage.

If your care will continue past year-end, ask how each new plan would cover it. Check a January specialist visit now. Your old plan may have approved the care, but the new plan may have its own rules. Ask whether you'll need a new referral or approval before treatment.

What Are Your Options When a Medicare Advantage Plan Leaves?

One option is another Medicare Advantage plan available where you live. Compare its provider network, drug coverage, and total costs. A familiar insurer name doesn't guarantee the same network or benefits as your departing plan.

Your other main option is Original Medicare. You can add a separate Part D drug plan. A Medigap policy can help pay some costs that Original Medicare leaves to you. These are separate policies. Check each one's premium and start date so the coverage works together.

Comparing Advantage and Medigap means looking beyond the monthly price. Think about where you get care and what you'd pay when you use it. Medigap helps with costs under Original Medicare. It doesn't pay Medicare Advantage copays.

If you don't join another Medicare Advantage plan before your old plan ends, you'll move to Original Medicare. That doesn't automatically give you Medigap or the drug coverage you need. Check that each new policy is in place before the old plan stops.

When Does Plan Non-Renewal Give You Medigap Rights?

When a Medicare Advantage plan leaves Medicare or stops serving your area, you may gain a guaranteed-issue right to certain Medigap policies. This means an insurer can't deny the protected coverage because of your health. It can't charge more because of a health condition, either. You must return to Original Medicare to use this right.

Medicare lists certain protected plan letters: A, B, C, D, F, G, K, and L, when sold in your state. Plans C and F aren't available to people newly eligible for Medicare in 2020 or later. State protections may provide additional options, so have your situation reviewed individually.

You can generally apply for qualifying Medigap coverage from 60 days before your Advantage plan ends through 63 days after it ends. Keep the non-renewal letter as proof. Medigap coverage can't start while you're still in Medicare Advantage.

Annual Enrollment alone doesn't give everyone the right to buy Medigap without health questions. Your departing plan creates a separate protection if you return to Original Medicare. Before choosing that route, confirm which policy you can buy and when to apply.

What Should You Check Before Medicare Annual Enrollment Ends?

Medicare's Annual Enrollment Period runs from October 15 through December 7, with changes generally starting January 1. Compare the actual 2027 plan documents. An insurer's familiar name or your experience with 2026 coverage choices doesn't establish next year's network or benefits.

Make your comparison specific:

  • Confirm your doctors and preferred hospitals with the proposed plan.
  • Check each prescription, dose, and pharmacy against its drug coverage.
  • Compare premiums, likely copayments, and limits on medical out-of-pocket spending.

When checking a new plan's network, ask about your specific doctor and location. A medical group may participate without every practice location being included. For prescriptions, check whether the plan requires approval before it pays, as well as the listed cost. Keep enrollment confirmations with your non-renewal notice.

Plan non-renewal can give you a Special Enrollment Period. For this event, it runs from December 8 through the last day of February in the next year. That isn't the same as your Medigap deadline. A later choice may also change when your new coverage starts. Check the dates now, even if you have more time to enroll.

Review Your Replacement Coverage With Sackett Insurance

Our Sackett Insurance team can review your non-renewal notice alongside the care you expect to need next year. We'll help you compare replacement coverage and sort out the enrollment deadlines that apply to your choice. Call Emma Fitzpatrick, our Medicare specialist, at (707) 823-3689 with your plan letter and medication list in hand.

Before your current plan ends, discuss your Medicare options with Sackett Insurance.

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