The Medicare Summary Notice (MSN) is a document that Medicare sends outlining your charges under Parts A and B. It’s sent every three months. You can learn more about it here.
Download a PDF version of the Medicare Summary Notice document that shows what the current version of the 2021 document looks like:
If you need the Medicare Summary Notice in another language, visit this page from Medicare.gov.
One purpose of the MSN is to help Medicare crack down on fraud and abuse in Original Medicare. If you believe that the charges on your MSN are wrong or you have other concerns about the statements you receive, contact Medicare directly at 1-800-MEDICARE.