Medical Summary Notice (MSN)

The MSN also shows what Medicare paid on the beneficiaries behalf and what the beneficiary may owe the provider. The MSN also shows if Medicare has fully or partially denied their medical claim.

Beneficiaries can also track their Medicare claims or view electronic MSNs by visiting MyMedicare.gov.

Beneficiaries must file an appeal related to Part A or B services within 120 days of the date they get the MSN in the mail. The appeal should be sent to the Medicare Administrative Contractor (MAC) that processed their claim (indicated on the MSN). Instructions for filing an appeal can be found on Medicare.gov.

If a beneficiary disagrees with the MACs decision on the appeal, they have 180 days after getting the decision notice to request a reconsideration by a Qualified Independent Contractor (QIC). Additional levels of appeal may also be available, depending on the amount of controversy.