Phone
1-800-MEDICARE (1-800-633-4227)
For specific billing questions and questions about your claims, medical records, or expenses, log into MyMedicare.gov, or call us at 1-800-MEDICARE.
If you want Medicare to be able to give your personal information to someone other than you, you need to fill out an "Authorization to Disclose Personal Health Information."
TTY
1-877-486-2048
Mailing address
Centers for Medicare & Medicaid Services
7500 Security Blvd
Baltimore, MD 21244-1850