Medicare Advantage Plan Exits for 2027: What to Do If Your Plan Sends a Non-Renewal Notice

If you have a Medicare Advantage plan, don’t assume it’ll automatically be there again next year. Insurers have been pulling out of unprofitable markets at an unusual pace, and the pattern is continuing into 2027 — millions of enrollees are getting non-renewal notices this fall, many of them in rural or lower-density areas where Medicare Advantage has never been as profitable for insurers to serve.

Here’s what a plan exit actually means for your coverage, and exactly what to do if you get one of these notices.

Why Are So Many Medicare Advantage Plans Exiting?

The wave of plan terminations has been building for a couple of years now. UnitedHealth, Humana, and CVS/Aetna — three of the largest Medicare Advantage insurers — have all been shedding unprofitable plans and service areas to protect their earnings, rather than continuing to absorb losses in markets where enrollment is too thin to be profitable.

For the 2026 plan year, roughly 2.6 million Medicare Advantage members lost their existing plan when insurers exited their county or discontinued the plan entirely. The pattern is continuing for 2027, with CMS and industry analysts flagging an unprecedented spike in plan exits threatening the overall stability of the Medicare Advantage market in some regions.

Rural areas are hit hardest. Medicare Advantage plans rely on enough enrolled members in a given service area to make the insurer’s risk pool work. In rural or lower-density counties, that math is thinner to begin with, which is exactly why insurers are concentrating their exits there rather than in dense metro markets.

One factor that could slow the trend: CMS finalized an average Medicare Advantage payment increase of about 2.48% for 2027 — worth roughly $13 billion across the industry. That’s better funding than insurers had been bracing for, and it may convince some plans to stay in marginal markets a bit longer. It’s not expected to reverse the broader exit trend, though. For context on how that compares to what retirees are seeing on the benefits side, the 2027 Social Security COLA is currently tracking around 3.8%.

What Happens If Your Plan Is Exiting

If your specific plan is leaving your service area or being discontinued entirely for 2027, Medicare requires the insurer to send you a formal non-renewal notice, typically arriving around October — timed just ahead of Medicare’s annual Open Enrollment period.

This notice isn’t the same as a routine “here are your plan’s changes for next year” letter (called an Annual Notice of Change, or ANOC). A non-renewal notice specifically means your current plan will not exist in your area next year, and you must actively choose new coverage.

A non-renewal notice triggers a Special Enrollment Period (SEP). This gives you additional flexibility beyond the standard Oct 15–Dec 7 Open Enrollment window — typically extending into the following year — to compare and enroll in a new plan without being treated as a late enrollee. The exact SEP window and rules can vary, so read your specific notice carefully for your deadline.

What to Do If You Get a Non-Renewal Notice

1. Don’t ignore it. If you take no action, you’ll default to Original Medicare (Parts A and B) with no Part D drug coverage and no Medigap supplement automatically in place — a real coverage gap if you’re managing ongoing prescriptions or chronic conditions.

1. Compare plans using Medicare’s Plan Finder. Enter every medication you take, at the exact dosage, since drug formularies vary significantly between plans even within the same insurer. The same total-cost math I walk through in my guide to choosing a health insurance plan — premium plus realistic out-of-pocket costs, not premium alone — applies here too.

1. Decide between a new Medicare Advantage plan and Original Medicare plus a standalone Part D plan. If you switch to Original Medicare, look into a Medigap supplement too — but note that Medigap medical underwriting rules vary by state, and you may not have guaranteed-issue rights outside your initial enrollment period unless your state or situation qualifies for an exception.

1. Check whether your doctors and hospitals are in-network for any plan you’re considering — network disruption is one of the most common complaints when switching Medicare Advantage plans, since networks can differ substantially from your old plan even within the same county.

1. Use your SEP window fully. Because a non-renewal notice gives you a Special Enrollment Period, you generally aren’t limited to making your decision only during the standard Oct 15–Dec 7 window — confirm your specific SEP deadline from your notice rather than assuming it matches the standard calendar.

How This Connects to the Rest of 2026–2027 Medicare Changes

Plan exits are happening alongside several other Medicare Advantage changes taking effect around the same time — including new limits on non-health “extra” benefits (like food or funeral-planning allowances) under the Special Supplemental Benefits for the Chronically Ill rules, and a shrinking number of stand-alone Part D plans generally. For the full rundown of what’s changing across Medicare more broadly this year, see my guide to 2026 Medicare coverage changes, which also covers the 2027 Part B premium outlook.

Looking Ahead: 2027 Open Enrollment

Open Enrollment for 2027 coverage runs October 15 through December 7, 2026. If you haven’t received a non-renewal notice but want to double-check your plan’s status for next year, watch your mail closely in September and October — insurers are required to notify affected members with enough lead time to make an informed choice, but notices can arrive close to the start of Open Enrollment itself.

Common Issues to Watch Out For

Confusing a non-renewal notice with a routine Annual Notice of Change. Every Medicare Advantage enrollee gets an ANOC each fall listing next year’s costs and benefit changes for their existing plan. A non-renewal notice is different — it means the plan itself won’t exist for you next year, not just that its terms are changing.

Assuming your doctor network carries over. Even if you pick a new plan from the same insurer, network participation can differ by product and by county — always verify directly rather than assuming continuity.

Missing the SEP deadline. Special Enrollment Periods triggered by a non-renewal have their own specific window, separate from standard Open Enrollment. Check your notice for the exact date rather than assuming you have until December 7.

Not checking whether the plan is exiting your specific county. Insurers sometimes stay in some counties within a state while exiting others — read your notice carefully rather than assuming a headline about an insurer “leaving the state” applies to you specifically.