You can change your Medicare address online, by phone, or by mail

Medicare keeps your address on file to send you bills, notices about coverage changes, and other important documents. If you move, you need to update that address so you don't miss anything. The fastest way is online through your Medicare account, but you can also call Medicare directly or send a form by mail. The process takes just a few minutes, and you don't need to contact your doctor or insurance company separately — Medicare handles the address change across all your coverage.

You should update your address as soon as you know you're moving, ideally before your move date. If you've already moved and haven't updated yet, do it right away so Medicare knows where to reach you. The address change takes effect when ready when you submit it online or by phone, though mail can take longer.

Key Takeaways

  • The fastest way to change your Medicare address is online at Medicare.gov using your login, which takes effect right away.
  • You can call Medicare at 1-800-MEDICARE (1-800-633-4227) to change your address by phone, and the change happens the same day.
  • If you mail a form, use the Address Change Request form or write a letter with your name, Medicare number, old address, and new address, and mail it to the address on your Medicare card.
  • Update your address before you move so Medicare can send your bills and notices to the right place.
  • If you have a Medicare Advantage plan or prescription drug plan, the address change updates all of them at once.

Changing your address online at Medicare.gov

Go to Medicare.gov and sign in with your username and password. If you don't have an account, you can create one using your email address and Social Security number. Once you're logged in, look for the "Personal Information" or "My Health Information" section — the exact name varies depending on which version of the site you're using.

Click on "Address" and enter your new address. Make sure you type it correctly, including the apartment or unit number if you have one. After you submit the change, you'll see a confirmation message on the screen. Write down the date and time, or take a screenshot. The change takes effect right away, and you should start receiving mail at your new address within a few days.

If you have trouble logging in or finding the address section, call Medicare at 1-800-MEDICARE. A representative can walk you through the steps or make the change for you over the phone.

Changing your address by phone

Call Medicare at 1-800-MEDICARE (1-800-633-4227). The line is open Monday through Friday, 8 a.m. to 8 p.m. Eastern time. Have your Medicare card handy so you can give the representative your Medicare number. You can also use your Social Security number if you don't have your card.

Tell the representative you need to change your address. They will ask you to confirm your current address and then enter your new one. Ask them to repeat the new address back to you to make sure they typed it correctly. The change takes effect the same day you call, and you'll receive a confirmation in the mail within a week or two.

If you call during the weekend or after hours, you can leave a message with your name, Medicare number, and new address, and a representative will call you back during business hours. However, calling during business hours is faster.

Changing your address by mail

You can mail a request to change your address. The easiest way is to use the official Address Change Request form, which you can read from Medicare.gov or request by calling 1-800-MEDICARE. If you don't have the form, you can write a straightforward letter instead.

Include the following information in your letter or form:

  • Your full name
  • Your Medicare number (on the front of your Medicare card)
  • Your old address
  • Your new address
  • The date you're moving (or have moved)

Mail it to the address on the back of your Medicare card. It usually says "Medicare" and includes a P.O. box or street address. Mail typically takes 7 to 10 business days to arrive, so the address change may not take effect for two to three weeks. If you're moving soon, use the online or phone method instead.

What happens to your Medicare Advantage or prescription drug plan

If you have a Medicare Advantage plan (Part C) or a prescription drug plan (Part D) through a private insurance company, changing your address with Medicare updates your address with that company too. You don't need to call them separately. However, it's a good idea to double-check by logging into your plan's website or calling the customer service number on your insurance card to make sure the address changed there as well.

Some insurance companies may send you a confirmation letter at your new address within a week or two. If you don't receive one, call your plan to confirm the change went through.

Updating your address if you move to a different state

If you're moving to a different state, the process is the same — just enter your new state address when you change your address with Medicare. However, you should know that some Medicare Advantage plans and prescription drug plans don't cover all states or all areas within a state. After you update your address, check your plan's website or call them to make sure your coverage continues in your new location.

If your plan doesn't cover your new address, you may need to switch to a different plan. You can do this during the Annual Enrollment Period (October 15 to December 7 each year) or if you have a may have access to life event like moving. Call 1-800-MEDICARE to learn about your options.

If you didn't receive mail at your new address

If you updated your address but still haven't received Medicare mail at your new location after three weeks, call 1-800-MEDICARE to confirm the address was entered correctly. Sometimes a typo in the street name or zip code can cause mail to go to the wrong place. A representative can check what address is on file and fix it if needed.

If you're still waiting for a specific document like a new Medicare card or a bill, ask the representative to resend it to your new address. They can usually do this right away over the phone.

Frequently Asked Questions

Do I need to tell my doctor's office about my address change?

No, you only need to update your address with Medicare. Your doctor's office may ask for your new address when you visit, but they don't need it to keep treating you. However, it's helpful to give them your new address so they can send you appointment reminders and bills to the right place.

What if I'm moving temporarily or have a second home?

Medicare keeps one address on file at a time. If you're moving temporarily, you can update your address to your temporary location and then change it back when you return. If you have a second home, update your address to whichever location you want Medicare to use for mail. You can change it as often as you need to.

Can I change my address if I'm in a nursing home or assisted living facility?

Yes. Use the facility's address as your Medicare address. If the facility has a specific format for addresses (like a room number or unit), ask the staff what to use. When you leave the facility, update your address again to your new home.

How long does it take for the address change to show up on my Medicare card?

Your address change takes effect right away in Medicare's system, but your physical Medicare card won't change unless you request a new one. You don't need a new card just because you moved — your current card is still valid. If your card is damaged or lost, call 1-800-MEDICARE to order a replacement, and they'll send it to your new address.

What if I'm homeless or don't have a permanent address?

Call 1-800-MEDICARE and explain your situation. A representative can help you set up a mailing address, such as a shelter, community center, or trusted friend's address where Medicare can send your mail. You can update this address whenever your situation changes.