Where to Find Your Medicare Number

Your Medicare number is on your Medicare card, in your Social Security statement, and in your online Medicare account

Your Medicare number is a unique identifier that Medicare uses to track your coverage and claims. You will need it every time you see a doctor, fill a prescription, or check on your benefits. The fastest way to find it is to look at your physical Medicare card — the number appears in the upper left corner. If you do not have your card handy, you can also find it through your online account at Medicare.gov, in your Social Security statement, or by calling Medicare directly.

Your Medicare number stays the same for life unless you request a change. It used to be your Social Security number, but Medicare stopped that practice in 2015 and issued new numbers to all beneficiaries. If you were on Medicare before 2015, your old card showed your Social Security number; your new card shows a different Medicare number instead.

Key Takeaways

Your Medicare card shows your Medicare number in the upper left corner, along with your coverage type and effective date.
You can view your Medicare number by logging into your account at Medicare.gov using your email address and password.
If you do not have a Medicare.gov account, you can create one using your Medicare card or Social Security number.
Medicare customer service can tell you your number over the phone at 1-800-MEDICARE (1-800-633-4227), available 24 hours a day, seven days a week.
Your Medicare number is different from your Social Security number, even if you were on Medicare before 2015.

Finding your number on your Medicare card

The easiest place to look is your physical Medicare card. Open your wallet and find the card with the Medicare logo and your name. In the upper left corner, you will see an 11-character number — this is your Medicare number. The card also shows your coverage type (Part A, Part B, or both), the date your coverage started, and any copayment amounts you are responsible for.

If your card is damaged, lost, or you never received one, you can order a replacement from Medicare.gov or by calling 1-800-MEDICARE. A replacement card usually arrives within 30 days. In the meantime, you can still find your number through your online account or by calling Medicare directly.

Accessing your Medicare number through Medicare.gov

Log into your account at Medicare.gov to view your Medicare number, coverage details, and claims history. Go to Medicare.gov, click "Sign In" in the upper right corner, and enter your email address and password. Your Medicare number will appear on your dashboard under "Your Medicare Information."

If you do not have a Medicare.gov account yet, you can create one in a few minutes. Click "Create an Account" and choose to sign in using your email address or your Social Security number. You will need your Medicare card or Social Security number to verify your identity. Once your account is set up, you can view your Medicare number anytime, check your claims, and manage your preferences.

Calling Medicare to get your number

Medicare customer service representatives can tell you your Medicare number over the phone. Call 1-800-MEDICARE (1-800-633-4227) and have your Social Security number ready. The line is open 24 hours a day, seven days a week. Wait times are usually shorter early in the morning or late in the evening.

When you call, you may be asked to verify your identity by providing your date of birth, address, or the last four digits of your Social Security number. A representative will then read your Medicare number to you. If you need it in writing, ask the representative to mail it to you or to provide it during the call so you can write it down.

Finding your number in your Social Security statement

If you receive a Social Security statement in the mail, it may include your Medicare number. Social Security sends these statements to people age 60 and older who are not yet receiving benefits. The Medicare number appears near the top of the statement under "Medicare Information."

You can also view your Social Security statement online at ssa.gov by creating a "my Social Security" account. Log in, click "View Your Statement," and scroll to the Medicare section. This statement is updated once a year, so the information may not reflect very recent changes to your Medicare coverage.

What to do if you cannot find your Medicare number

If you have looked everywhere and still cannot locate your number, do not worry — Medicare can help. Call 1-800-MEDICARE and explain that you need your Medicare number. Have your Social Security number, date of birth, and current address ready. A representative will look up your account and provide your number.

You can also visit your local Social Security office in person if you prefer to speak with someone face-to-face. Bring a photo ID and proof of your current address. Social Security staff can confirm your Medicare number and help you order a replacement card if needed.

Understanding your Medicare number format

Your Medicare number is 11 characters long and consists of nine digits followed by two letters. The format looks like this: 123-45-6789-AB. The first nine digits are unique to you, and the two letters at the end are derived from your name. Unlike your old Social Security number, this format does not reveal personal information about you.

When you use your Medicare number at a doctor's office or pharmacy, you may be asked to provide it along with your date of birth. Some providers will also ask for your group number or plan name if you have Medicare Advantage or a Medigap plan. Keep your Medicare card with you whenever you have a medical appointment so you can provide this information quickly.

Frequently Asked Questions

Is my Medicare number the same as my Social Security number?

No. Medicare stopped using Social Security numbers in 2015 and issued new Medicare numbers to all beneficiaries. If you were on Medicare before 2015, your old card showed your Social Security number, but your current card shows a different Medicare number. Your Social Security number and Medicare number are now separate.

What if I lost my Medicare card and do not remember my number?

Call 1-800-MEDICARE and have your Social Security number and date of birth ready. A representative will look up your Medicare number and read it to you. You can also order a replacement card through Medicare.gov or by phone; it usually arrives within 30 days.

Can I change my Medicare number?

Your Medicare number is permanent and does not change unless you request a new one for privacy or security reasons. If you believe your number has been compromised, call 1-800-MEDICARE to discuss your options. Medicare can issue a new number, though this is rare.

Do I need my Medicare number to make a doctor's appointment?

Most doctor's offices will ask for your Medicare number when you schedule an appointment or check in for a visit. Having it ready speeds up the process. If you do not have it memorized, write it down from your card and keep it in your wallet or phone.

What should I do if someone asks for my Medicare number online or by phone?

Be cautious. Medicare will never call you unsolicited asking for your Medicare number. If someone calls claiming to be from Medicare, hang up and call 1-800-MEDICARE yourself to verify. Legitimate providers like your doctor or pharmacy may ask for your number, but only give it to people you trust and have contacted yourself.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.