Yes, you can look up your Medicare claims online or by phone

You can see what Medicare paid on your behalf, what your doctors or hospitals billed, and what you still owe. The fastest way is through your Medicare.gov account, which shows claims within days of processing. If you do not have an online account, you can call Medicare directly or request a paper statement mailed to you.

Most people find what they need in one of three places: the Medicare website, a phone call to 1-800-MEDICARE, or a printed Explanation of Benefits (EOB) that arrives in the mail. Each method shows the same information but in different formats, so pick whichever fits how you like to look things up.

Key Takeaways

  • Create a Medicare.gov account to see your claims online within a few days of Medicare processing them.
  • Your Explanation of Benefits (EOB) arrives by mail and shows what was billed, what Medicare paid, and what you owe for each service.
  • Call 1-800-MEDICARE to ask about a specific claim or to request a paper statement if you do not use the internet.
  • Claims can take 30 days or more to show up in your account, so do not assume something was not processed if you do not see it right away.
  • If a claim looks wrong, you can file a request to review it, but you must do so within 120 days of the date on your EOB.

Setting up your Medicare.gov account to view claims

Go to Medicare.gov and select "Sign In" in the top right corner. If you do not have an account, choose "Create Account" and enter your name, date of birth, and Social Security number. Medicare will verify your identity, which usually takes a few minutes but can take up to 24 hours.

Once you are signed in, click "Claims and Statements" or "My Claims" (the exact wording changes depending on whether you have Original Medicare or a Medicare Advantage plan). You will see a list of claims sorted by date, with the provider name, service date, what was billed, what Medicare paid, and what you owe.

You can filter claims by date range or provider name, and you can read or print any claim for your records. This is the same information that appears on your Explanation of Benefits, but you can see it when ready instead of waiting for the mail.

Understanding your Explanation of Benefits (EOB)

Your EOB is a statement that arrives by mail, usually within two to four weeks after Medicare processes a claim. It shows one or more services from a single provider. The document lists what the provider charged, what Medicare's allowed amount is (which may be less), what Medicare paid, and what you are responsible for.

The EOB also shows whether you have met your deductible, how much of your out-of-pocket maximum you have used, and whether the service required prior authorization. If you have a secondary insurance (like coverage from a former employer), the EOB will note whether that plan was billed and what it paid.

Keep your EOBs in a folder or file them online. You will need them if you dispute a charge, if you want to track your out-of-pocket spending for tax purposes, or if you need to show proof of payment to a provider.

Looking up claims by phone

Call 1-800-MEDICARE (1-800-633-4227) and have your Medicare card ready. A representative can look up a specific claim, tell you the status of a claim you submitted, or mail you a statement covering a date range you choose.

Phone lines are busiest early in the morning and on Mondays and Tuesdays. If you call in the afternoon or on a Wednesday through Friday, you will usually reach someone faster. The wait time is often 15 to 45 minutes, depending on call volume.

If you are deaf or hard of hearing, you can use the TTY number 1-877-486-2048. If English is not your first language, interpreters are available in most languages at no cost.

How long claims take to appear

After your doctor or hospital sends a claim to Medicare, it usually takes 5 to 30 days to process. straightforward claims (like an office visit with no complications) often show up within a week. Complex claims (like surgery with multiple charges or claims that need manual review) can take a month or longer.

If you do not see a claim after 30 days, it may still be processing, or the provider may not have submitted it yet. Call the provider's billing department to confirm they sent it. If they did, call Medicare to ask whether the claim is in their system.

Once a claim is processed, it stays in your online account permanently. You can look it up years later if you need to verify what was paid or what you were charged.

What to do if a claim looks wrong

If the amount billed, the amount Medicare paid, or the amount you owe does not match what you expected, you can file a request for review. You have 120 days from the date on your EOB to file. After 120 days, Medicare will not review the claim.

To request a review, write to the address shown on your EOB or call 1-800-MEDICARE and ask for a review form. Explain what you think is wrong and include a copy of your EOB. Medicare will investigate and send you a written decision within 30 days.

If you disagree with Medicare's decision, you can appeal. The appeal process has several levels, and you have specific time limits at each one. The EOB or review decision letter will explain how to appeal and the important date for doing so.

Tracking claims for multiple providers

If you see many providers (doctors, specialists, hospitals, labs), your claims will arrive on separate EOBs, sometimes weeks apart. Your online account groups them by date, so you can see all claims from a single date range even if they came from different providers.

To keep track of your out-of-pocket costs, create a straightforward spreadsheet with the date, provider, service, what you owe, and whether you have paid it. Update it as EOBs arrive. This helps you know when you are close to your out-of-pocket maximum and makes tax time easier if you itemize deductions.

If you have a Medicare Advantage plan instead of Original Medicare, your claims work slightly differently. Your plan sends you an EOB instead of Medicare, and the format may vary by plan. Log into your plan's website or call the number on your insurance card to see your claims.

Frequently Asked Questions

Why does my EOB show a different amount than what my doctor told me I owe?

Your doctor's office may not have known Medicare's allowed amount when they quoted you a price. Medicare pays based on a set fee schedule, not what the provider charges. Your EOB shows what Medicare actually paid, and you owe the difference between that and the allowed amount (if you have not met your deductible) or your copay or coinsurance.

Can I see claims for services I received months ago?

Yes. Your online account shows all claims from the past several years. If you need claims from longer ago, call 1-800-MEDICARE and ask them to mail you a statement covering the dates you need. They can usually retrieve claims going back at least five years.

What if I see a claim I did not authorize?

Call your provider's billing department first to confirm the service was actually provided and billed correctly. If you did not receive the service or believe it was billed in error, ask the provider to correct or withdraw the claim. If they refuse, file a request for review with Medicare within 120 days of your EOB date.

Do I need to print my EOBs or can I just look them up online?

You can keep them online if you have reliable access to your Medicare account and can read them if needed. But many people print or save copies as backup, especially for claims related to large expenses or claims they might need to dispute later. Keeping both digital and paper copies is the safest approach.

How do I know if a claim was denied?

Your EOB will show a status for each claim — usually "Approved" or "Denied." If denied, the EOB explains why (for example, "not medically necessary" or "requires prior authorization"). If you disagree with a denial, you can request a review within 120 days of the EOB date.