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Corewell Health Medicare plans ending in Michigan for 2027

Which Corewell Health plans are listed as leaving Michigan, where, and what to do next.

Quick answer

6 Corewell Health plans are listed in Michigan for 2026 but not for 2027, in 60 counties, covering at least 74,377 people enrolled today. If you have one of these plans, you can choose a new plan from October 15 to December 7, and coverage starts January 1.

Corewell Health plans leaving Michigan

Plan going awayWherePeople enrolled (at least)
PriorityMedicare Key (HMO-POS)
H2320-022		36 counties29,195
PriorityMedicare Vital (PPO)
H4875-022		38 counties23,622
PriorityMedicare Thrive (PPO)
H4875-024		36 counties9,618
PriorityMedicare Edge (PPO)
H4875-020		14 counties4,539
PriorityMedicare Thrive Plus (PPO)
H4875-018		36 counties4,013
PriorityMedicare Vintage (HMO-POS)
H2320-031		38 counties3,390

Counties with Corewell Health plans leaving

What to do if you have a Corewell Health plan

  1. Read the notice from Corewell Health. It names the plan that is ending and your options.
  2. Compare 2027 options before December 7, including other Medicare Advantage plans, or Original Medicare with a Medicare Supplement and a Part D drug plan.
  3. Check that your doctors, hospitals and prescriptions are covered by any plan you consider.
  4. Free, unbiased help: MMAP (Michigan Medicare/Medicaid Assistance Program) at 800-803-7174, or Medicare.gov, 1-800-MEDICARE.
Is my Corewell Health plan ending in Michigan?

Check the list above for your plan name or plan ID. A plan can be listed because it was renumbered or replaced, so your plan notice is the final word. Corewell Health must notify you if your plan is not renewing.

When can I pick a new plan?

The Annual Enrollment Period runs October 15 to December 7, and new coverage starts January 1. People whose plan is not renewing generally get extra time afterward. Confirm your dates with Medicare.gov or your plan notice.

Do I have to enroll if I call?

No. Calling is a conversation about your options, and you are never required to enroll.

Corewell Health plan ending? Call 855-367-1095

Call Lander LLC to go over your options. There is no cost to call or to speak with an agent, and you are never required to enroll in anything.

Call 855-367-1095 Open 8 AM-10 PM Eastern time

Source: CMS Medicare Advantage and Part D landscape files for 2026 and 2027, and CMS enrollment data from September 2026.

Reviewed by Richard Lander, licensed insurance agent (NPN 21255551), Lander LLC. Last updated October 3, 2026. This page is educational and is not a quote, an offer of coverage, or legal or tax advice.

Do it yourself

Prefer to look and enroll yourself?

Compare plans and enroll on your own time. Or call 855-367-1095 when you want a licensed agent’s help (Open 8 AM-10 PM Eastern time).

Medicare

Medicare Open Enrollment starts October 15th

Take a look at Michigan plans, or go ahead and enroll yourself. Call if you need any help with your application.

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Under 65 · ACA

ACA Open Enrollment opens November 1st

Take a look at Michigan plans, or go ahead and enroll yourself when it opens. Call if you need any help with your application.

Look at plansCall 855-367-1095Open 8 AM-10 PM Eastern time

Questions along the way? Call 855-367-1095 for assistance (Open 8 AM-10 PM Eastern time).