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Medicare Summary Notice (MSN)

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The Medicare Summary Notice is an easy-to-read statement that clearly lists your health insurance claims information. The MSN lists the details of the services you received and the amount you may be billed. These notices are sent by companies that handle bills for Medicare on a quarterly basis, unless you are due a payment check from Medicare. If you are due payment from Medicare, the MSN will be mailed to you as your claims are processed.

The MSN lists all the services or supplies that were billed to Medicare for a 90-day period of time. It is important to check this notice to be sure you got all the services, medical supplies, or equipment that providers billed to Medicare. If you have any questions or if you need an MSN for a particular claim before the quarterly mailing, call the phone number listed in the Customer Service Information box on the front of the MSN. If you disagree with a claims decision, you have the right to file an appeal. Follow the instructions on the MSN to file an appeal.

How to Read Your Medicare Summary Notice - Part B

View an example of the new, simplified MSN Part B (PDF 79 KB)

How to Read Your Medicare Summary Notice - Part A

View an example of the new, simplified MSN Part A (PDF 78 KB)

Page Last Updated: March 27, 2008


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