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1-800-MEDICARE (1-800-633-4227)

For specific billing questions and questions about your claims, medical records, or expenses, login to, or call 1-800-MEDICARE.

If you want someone to be able to call 1-800-MEDICARE on your behalf or you want Medicare to give your personal information to someone other than you, you need to fill out a "Medicare Authorization to Disclose Personal Health Information."



Mailing address

Centers for Medicare & Medicaid Services
7500 Security Blvd
Baltimore, MD 21244-1850