Moving to another state is one of the life events that confuses Medicare beneficiaries the most, because the rules change depending on what type of coverage you have. Original Medicare follows you anywhere in the country with no paperwork, but Medicare Advantage, Part D, and in some cases Medigap, depend on your address and may require you to switch plans. This guide explains exactly what happens to each type of coverage, how much time you have to act, and how to avoid a coverage gap during the transition.
Original Medicare: nothing changes
If you have Part A and Part B (Original Medicare), your coverage is exactly the same no matter which state you move to. You can see any doctor or hospital nationwide that accepts Medicare, the very day you arrive at your new home, with no 'transfer' paperwork at all. The only thing you need to do is update your address with Social Security so you keep receiving important mail.
Availability, cost, benefits, and eligibility vary by person, product, contract, and insurance company, as well as by your service area. Guarantees are subject to the claims-paying ability of the issuing insurance company. Karla Arámburo is not affiliated with or endorsed by Medicare or the federal government.
Medicare Advantage: you almost always have to switch plans
Medicare Advantage plans operate within specific service areas, usually defined by county. If you move outside your current plan's service area, you automatically lose that plan's coverage and must choose a new one available in your new ZIP code. Even if the same insurer operates in the new state, it's likely a different plan, with its own doctor network, drug formulary, and copays.
A move outside your service area gives you a Special Enrollment Period: if you notify your plan before moving, the period starts the month before the move and lasts two full months after; if you notify afterward, it starts the month you notify and lasts two full additional months. In total you have up to three months after the move to choose a new Medicare Advantage plan or return to Original Medicare with a stand-alone Part D plan.
Part D: the formulary and pharmacy network can change
Stand-alone Part D plans also vary by region, and the plan you had in your previous state may not be available, or may have a different drug formulary, copays, and pharmacy network in the new state. The same three-month Special Enrollment Period rule applies here, so you don't need to wait until the October-to-December Annual Enrollment Period to make the switch.
Before moving, it's worth confirming your current medications are covered by a plan available in your new ZIP code, and that your preferred pharmacy, or one near your new home, is in the network.
Medigap: more flexible, but with rules that vary by state
Unlike Medicare Advantage and Part D, a Medigap policy isn't tied to a local service area: if you keep the same insurer and the same plan, you can usually keep it when moving to another state without going through a new medical questionnaire. However, your monthly premium may change, because each state uses a different method to price Medigap (issue-age, attained-age, or community-rated), and those methods affect cost differently over time.
If you want to switch insurers or Medigap plans in your new state, you'll likely need to go through medical underwriting, unless you qualify for a guaranteed-issue right (for example, if your previous Medicare Advantage plan isn't available in the new state). To understand how those rights work, review our Medigap guaranteed-issue rights guide. If you're moving within California, also review our California Medigap birthday rule guide, which lets you switch plans each year without medical underwriting.
Checklist before you move
- Update your address with Social Security and with Medicare as soon as you know your new address.
- Compare the Medicare Advantage and Part D plans available in your new ZIP code before moving, so your new coverage starts without a gap the month you move.
- Confirm whether your current Medigap policy remains valid in the new state and how your premium will change.
- Verify that your current doctors, or new doctors near your home, and your medications are covered by the plan you choose.
- Notify your current plan about the move to trigger your Special Enrollment Period on time.
Free bilingual help with your move
I am Karla Arámburo, an independent, bilingual insurance agent licensed to serve families in Orange, Los Angeles, San Diego, and Riverside counties. If you're moving within California, or into or out of California, I review your specific situation — your medications, your doctors, your budget, and your dates — to help you choose the right coverage before and after your move, in Spanish or English, at no cost to you.
You can call or text (619) 321-8733 or schedule a free consultation to review your specific situation. I also offer life insurance options that accept an ITIN. This page is general education, not individualized advice or a product recommendation.
Frequently asked questions
Do I lose my Medicare if I move to another state?
No. Original Medicare (Part A and Part B) is a federal program that follows you to any state you move to, with no paperwork needed to 'transfer' it. What does change by state are your Medicare Advantage, Part D, and in some cases Medigap options.
How much time do I have to change plans after I move?
If you notify your plan before moving, your Special Enrollment Period starts the month before the move and lasts two full months after. If you notify after moving, the period starts the month you notify and also lasts two full additional months. In total, you have up to three months after the move to make the change without penalty.
What happens if I don't switch plans in time after moving?
If your Medicare Advantage or Part D plan doesn't cover your new area and you don't switch within your Special Enrollment Period, you could end up without drug coverage or a local provider network, and you could face a coverage gap until the next available enrollment period. It's important to act within that three-month window.
Does my Medigap stay the same if I move to another state?
If you keep the same policy and the same insurer, you can generally keep it without going through medical underwriting, although your premium may change based on the new state's pricing method (issue-age, attained-age, or community-rated). If you want to switch insurers or plans in the new state, you may need to go through medical underwriting, unless you qualify for a guaranteed-issue right.
Do I need to notify Social Security when I move?
Yes. You should update your address with Social Security (and with Medicare) so you keep receiving important mail, including a new Medicare card if applicable, and so your information is correct when comparing plans available in your new ZIP code.
Can I compare plans before moving, or do I have to wait?
You can and should compare plans before moving, as soon as you know your new address or ZIP code. This lets you choose calmly, and if you notify your current plan before the move, your new coverage can start the month you move, without a gap.
Does moving within the same state also give me a Special Enrollment Period?
It depends. If your move within the same state takes you outside your current Medicare Advantage plan's service area, or gives you access to new plan options you didn't have at your old address, you do qualify for a Special Enrollment Period, even though you're staying in the same state.