Medicare Summary Notice

A Medicare summary notice is a claims statement you receive in the mail from Medicare every three months. It contains information about the services you received, explains the charges Medicare will pay and states the maximum amount you may owe.

What Is a Medicare Summary Notice?

A Medicare summary notice is a letter that people with Original Medicare receive every three months. This is a claims statement, not a bill.

Your Medicare summary notice includes a list of all doctor visits, services or supplies billed to Medicare in your name during the three-month period.

Medicare summary notices explain the charges Medicare will pay along with the maximum amount you may owe.

Beneficiaries enrolled in a Medicare Advantage plan or a standalone Part D plan will receive an explanation of benefits from their plan provider, not a Medicare summary notice.

Why Understanding Your Medicare Statement is Important

Your Medicare summary notice can help you monitor your out-of-pocket costs and ensure you were properly billed for the services you received.

You should compare the information on your notice with bills, statements and receipts from your health care providers and suppliers.

Ensure that the dates, billing codes and descriptions of services you received match.

“One of the most common billing mistakes we see are providers billing patients directly instead of submitting through insurance,” said Caitlin Donovan, a health care policy expert at the nonprofit Patient Advocate Foundation.

Health care billing mistakes are extremely common, said Donovan, whose organization estimates that at least half of all patient’s medical bills contain errors.
“A provider may have a claim denied by Medicare. Instead of fixing it, they just bill the patient directly — either as a mistake or intentionally,” Donavon told

That’s why waiting for your Medicare statement is important: It’s a way to make sure Medicare has received a claim from your provider and the provider has paid their share.

“You can compare your bill and (Medicare statement) to see what you owe, and make sure it’s the correct amount,” Donovan said. “If they’re different, there’s probably been a mistake somewhere.”

If numbers or dates don’t match up, you need to report it. It may be a simple clerical error, or it could be a red flag for Medicare fraud.

Call your provider or Medicare, depending on the mistake, Donovan said.

Contact your doctor’s office for clerical mistakes, such as incorrect medical coding. For any other incorrect information, contact Medicare customer service and support.

Otherwise, Medicare assumes you received the services provided as described in the notice and may deny coverage until errors are resolved.

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The Different Parts of a Medicare Summary Notice

You’ll receive a Medicare summary notice for both Part A and Part B. Each page contains specific information.

Navigating Your Medicare Summary Notice
Page 1
This is your dashboard. It shows how much of your yearly deductible has been paid. You’ll see a summary of your approved and denied claims, as well as the total you may be billed. Your Part A notice will include a list of the facilities you visited, along with dates for the services you received. Your MSN for Part B will include a list of dates and the doctors you saw.
Page 2
Here you’ll find helpful tips on how to review your notice, fraud-report directions, contact numbers for Medicare and other general messages from Medicare.
Page 3
This page details your claims information. The Part A Medicare summary notice will describe the type of claim (inpatient or outpatient), the start date of your current benefit period and the dates of service. The Part B notice will describe the type of claim (assigned or unassigned), service descriptions and the dates on which you visited your doctor. Both MSNs include a column of approved or denied claims along with the total amount the provider or facility can bill you highlighted in bold.
Last Page
Here you’ll find out how to handle denied claims. It will explain your options and provide you with information on filing an appeal with Medicare.

If you need help understanding your Medicare summary notice, your Senior Medicare Patrol can help.

Senior Medicare Patrol chapters are grant-funded projects of the U.S. Department of Health and Human Services’ Administration for Community Living. The program aims to prevent, detect and report fraud and errors in the Medicare program.

This 20-minute tutorial from the Senior Medicare Patrol presents the basics of how to read your MSN.

How Long Should You Keep Medicare Summary Notices?

Most experts recommend saving your Medicare summary notices for one to three years.

At the very least, you should keep them while the medical services listed are in the process of payment by Medicare and supplemental insurance.

How long you keep these records depends on your personal preference. Remember, you can access Medicare summary notices from the last 36 months at any time online through your My Medicare Account.

How to Request a Medicare Summary Notice

You will automatically receive your Medicare summary notice in the mail every three months. You do not need to request it.

You can also request Medicare summary notices in accessible formats, including Braille, large print, data or audio files, relay services and TTY communications.

3 Ways to Request Medicare Summary Notices in an Accessible Format
  1. Call Medicare at 1-800-633-4227 (TTY: 1-877-486-2048)
  2. Email
  3. Mail a letter (include your name, phone number and the mailing address where materials should be sent) to: Centers for Medicare & Medicaid Services, Offices of Hearings and Inquiries (OHI), 7500 Security Boulevard, Mail Stop S1-13-25, Baltimore, MD 21244-1850, Attn: Customer Accessibility Resource Staff

If you misplace a notice or need to request an older copy, you can do so by logging in to your online Medicare account. This allows you to review all claims processed within the last 36 months.

Can You Get Medicare Summary Notices Online?

Yes, Medicare summary notices are available online — but you must sign up to receive them electronically.

If you opt for electronic notices, you’ll stop receiving printed copies of your MSNs in the mail.

Instead, you’ll get an email every month from your online My Medicare Account. You can then view your MSN online and print a copy if you want it.

Steps to Sign Up for Electronic Medicare Summary Notices
  1. Log into or create your online Medicare account.
  2. Select "Get Your Medicare Summary Notices (MSNs) electronically" under the "My Messages" section at the top of your account homepage.
  3. You'll reach the "My Communication Preferences" page. Select "Yes" under "Change eMSN Preference."

Signing up for eMSNs can help you reduce paperwork at your home. You can access these online documents at any time.

Last Modified: September 15, 2021

8 Cited Research Articles

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  2. Centers for Medicare & Medicaid Services. (n.d.). Part A: What’s in Your Medicare Summary Notice? Retrieved from
  3. Centers for Medicare & Medicaid Services. (n.d.). Part B: What’s in Your Medicare Summary Notice? Retrieved from
  4. (n.d.). Accessibility & Nondiscrimination Notice. Retrieved from
  5. (n.d.). Go paperless. Retrieved from
  6. (n.d.). "Medicare Summary Notice" (MSN). Retrieved from
  7. North Carolina Senior Medicare Patrol. (n.d.). What is a Medicare Summary Notice? Retrieved from
  8. Senior Medicare Patrol. (n.d.). Read Your Medicare Statements. Retrieved from