You can change your Medicare address online, by phone, or by mail — the fastest way is usually online through your Medicare account

Medicare needs your current address so your cards, statements, and notices reach you. If you move, you should update your address as soon as possible. The process takes just a few minutes and you have three main routes: the Medicare website, a phone call to Medicare, or a paper form in the mail.

Your address change takes effect right away online or by phone. If you mail a form, allow 10 business days for processing. Either way, Medicare will send you a confirmation letter to your new address within a few weeks.

Key Takeaways

  • You can update your address on Medicare.gov by signing into your account, or by calling 1-800-MEDICARE (1-800-633-4227) any day of the week.
  • If you have a Medicare Advantage plan or prescription drug plan, you may also need to contact your plan directly to update your address with them.
  • Medicare will send a confirmation letter to your new address within a few weeks to verify the change went through.
  • If you move to a different state, your Medicare coverage stays the same, but you should update your address right away to avoid mail delays.
  • Keep your old address on file temporarily if mail is still being forwarded, so you don't miss any important notices during the transition.

Updating your address online through Medicare.gov

The online method is the quickest and works 24 hours a day. Go to Medicare.gov and sign in with your username and password. If you don't have an account yet, you can create one using your Social Security number, Medicare number, or health insurance claim number.

Once you're signed in, look for "Personal Information" or "My Health Information" in the menu. Select the option to update your address, enter your new street address, city, state, and ZIP code, and save the changes. You'll see a confirmation message on the screen right away, and Medicare will send a confirmation letter to your new address within a few weeks.

If you have trouble signing in or navigating the website, you can call 1-800-MEDICARE and ask for help. A representative can walk you through the steps or update your address over the phone instead.

Changing your address by phone

Call 1-800-MEDICARE (1-800-633-4227) any day of the week, 24 hours a day. A representative will ask for your name, date of birth, and Social Security number to find your account. Then they'll ask for your new address and confirm the change before you hang up.

The phone line can have wait times during business hours, especially early morning and mid-week. If you call in the evening or on weekends, you may reach someone faster. Have your new address written down before you call so you can give it clearly.

Updating your address by mail

If you prefer to mail a form, read the CMS-40B form from Medicare.gov or call 1-800-MEDICARE to request one. Fill in your name, Medicare number, old address, and new address. Sign and date the form, then mail it to the address listed on the form — usually your local Social Security office or Medicare contractor.

Mail processing takes about 10 business days. If you're moving soon and need your mail to reach you quickly, use the online or phone method instead. Keep a copy of the form for your records.

Updating your address with your Medicare plan

If you have a Medicare Advantage plan (Part C) or a prescription drug plan (Part D), you should also contact your plan directly to update your address with them. Updating Medicare's records doesn't automatically update your plan's records, and your plan needs your correct address to send you plan documents and pharmacy information.

Your plan's customer service number is on your insurance card. Call them and give them your new address. They'll confirm the change and let you know if it affects your coverage or pharmacy network in your new location.

If you move to a different state, your Medicare coverage continues, but your plan may change because plans vary by state. Your plan will contact you about this, but it's worth calling them to confirm your coverage is still active in your new state.

What happens after you change your address

Medicare sends a confirmation letter to your new address within a few weeks. This letter shows your updated information and confirms the change went through. If you don't receive it within 30 days, call 1-800-MEDICARE to check the status.

Your new Medicare card will be mailed to your new address if you requested a replacement or if your card needs to be reissued. Your statements, notices about coverage changes, and other important mail will also go to your new address from that point forward.

If your mail is being forwarded by the post office, you may receive some mail at both addresses for a while. Once you're sure Medicare has your new address, you can stop checking your old address.

Changing your address if you move to a different state

Your Medicare coverage doesn't change when you move to a different state — you keep the same Medicare benefits. However, your Medicare Advantage plan or prescription drug plan may not be available in your new state, and you may need to choose a new plan.

Update your address with Medicare first, then contact your current plan to ask if they cover your new location. If they don't, your plan will send you information about plans available in your new state. You can switch plans during a Special Enrollment Period if your current plan doesn't serve your new address.

If you're moving and have questions about your coverage in your new state, call 1-800-MEDICARE. They can tell you which plans are available where you're moving and help you understand your options.

Frequently Asked Questions

How long does it take for Medicare to update my address?

Online and phone changes take effect right away. If you mail a form, allow 10 business days. Medicare sends a confirmation letter to your new address within a few weeks, so you'll know the change went through.

Do I need to update my address with my doctor's office too?

Yes. Updating your address with Medicare doesn't automatically update your doctor's records. Call your doctor's office and pharmacy separately to give them your new address so they can send you appointment reminders and prescription information.

What if I'm moving temporarily and plan to move back?

Update your address to your temporary location. When you move back, update it again. Medicare doesn't have a "temporary address" option, so use the address where you're currently receiving mail.

Can I change my address if I'm moving to a nursing home or assisted living?

Yes. Use the facility's address as your new address. Make sure the address includes your room or unit number so mail reaches you correctly. Update your address with your plan and your doctors at the same time.

What if I don't receive my confirmation letter?

Wait 30 days after updating your address. If you don't receive a confirmation letter, call 1-800-MEDICARE to verify the change went through and ask them to resend it or confirm your address is correct in their system.