What Happens to Your Medicare Advantage Plan When You Move to Another State

Why Medicare Advantage Is Tied to Where You Live

Medicare Advantage (Part C) plans are sold and approved on a county-by-county basis. Each plan has a defined service area, along with a provider network and pricing that are set for that specific region. That structure is why a plan that works perfectly at your old address may not exist — or may look completely different — once you cross a state line.

When you permanently move outside your plan's service area, the plan can no longer cover your routine care the way it did before. This is different from Original Medicare (Parts A and B), which is a federal program that travels with you anywhere in the United States and its territories. So the question of 'what happens when I move' is really a question about your Medicare Advantage or Part D plan, not about your underlying Medicare entitlement.

• Moving out of the service area: your plan can disenroll you, and you get a Special Enrollment Period to pick a new plan or return to Original Medicare.
• Moving within the same service area: you can usually keep your current plan, but you may still qualify for an SEP if new plan options are available where you now live.
• Original Medicare itself does not change when you move — only your add-on plans (Advantage, Part D, or Medigap) may need to change.

Your Special Enrollment Period (SEP) and Its Deadlines

A permanent move outside your plan's service area gives you a Special Enrollment Period to make changes — you don't have to wait for the fall Open Enrollment Period. The exact window depends on when you notify your plan.

Timing matters: telling your plan before you move gives you the longest possible window, and it helps you avoid a gap where you've left the old service area but haven't yet enrolled somewhere new.

• If you notify your plan BEFORE you move: your SEP begins the month before the month you move and continues for two full months after you move.
• If you notify your plan AFTER you move: your SEP begins the month you tell the plan and continues for two more full months.
• During the SEP you can join a new Medicare Advantage plan (with or without drug coverage), join a standalone Part D drug plan, or return to Original Medicare.
• If you do nothing, you'll be disenrolled from your old plan and automatically placed in Original Medicare once you're dropped.

If You Return to Original Medicare: 2026 Costs

Returning to Original Medicare — by choice or by default — means you go back to the federal program's standard cost-sharing. These figures are nationwide and do not change with your state of residence.

Because Original Medicare has no annual out-of-pocket limit on its own, many people pair it with a standalone Part D drug plan and a Medigap (Medicare Supplement) policy. Whether you can get a Medigap policy without medical underwriting after a move depends on your situation (see the FAQs below).

• Part B: $202.90/month premium and a $283 annual deductible in 2026, then you generally pay 20% coinsurance for covered services.
• Part A: premium-free with 40+ work quarters; otherwise $311/month (30–39 quarters) or $565/month (under 30 quarters).
• Part A hospital deductible: $1,736 per benefit period; days 61–90 cost $434/day; lifetime reserve days cost $868/day; skilled nursing days 21–100 cost $217/day.
• Part D in 2026: a $2,100 annual out-of-pocket cap on covered drugs, with a national base beneficiary premium of $38.99/month (your plan's premium varies).

Medigap and Part D After a Move

If you switch back to Original Medicare after leaving a Medicare Advantage plan because you moved out of its service area, federal rules generally give you a guaranteed-issue right to buy certain Medigap policies. With a guaranteed-issue right, an insurer cannot turn you down, charge you more based on your health, or impose a pre-existing condition waiting period.

This right is time-limited. You typically must apply for the Medigap policy starting 60 days before your Advantage coverage ends and up to 63 days after it ends. The specific plans available under this right are standardized, and which lettered plans you qualify for can depend on when you first became eligible for Medicare.

Standalone Part D drug plans are also regional. If you keep Original Medicare, you'll usually need to choose a new Part D plan that operates in your new state, using the same move-based Special Enrollment Period.

• Guaranteed-issue Medigap plans in this situation commonly include Plans A, B, C, F, K, and L; people who first became eligible for Medicare on or after January 1, 2020 cannot buy Plans C or F and may use Plan D or G instead.
• Apply within the window — roughly 60 days before through 63 days after your old coverage ends — to keep your guaranteed-issue protection.
• Medigap availability, pricing, and standardized plans differ in Massachusetts, Minnesota, and Wisconsin, which use their own systems.
• Medigap premiums and which insurers sell each plan vary by state and company, so a comparable plan may cost a different amount in your new location.

Step-by-Step: What to Do When You Move

• Notify your current Medicare Advantage or Part D plan as soon as you know your moving date — ideally before you move — to open the longest SEP window.
• Update your address with the Social Security Administration so your Medicare records reflect your new location.
• Use Medicare's Plan Finder to compare Medicare Advantage and Part D plans available in your new ZIP code, since networks and formularies are local.
• Decide whether to enroll in a new Medicare Advantage plan or return to Original Medicare (and, if so, add a Part D plan and consider a Medigap policy).
• Act within your SEP — generally two full months after your move — to avoid a coverage gap or being defaulted into Original Medicare without a drug plan.
• Confirm your new plan's effective date and that your doctors and prescriptions are covered before your old coverage ends.