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Contact Medicare

The Centers for Medicare & Medicaid Services (CMS) is a branch of the U.S. Department of Health and Human Services. CMS is the federal agency that administers the Medicare program and monitors the Medicaid programs offered by each state. English and Spanish-speaking Customer Service Representatives (CSRs) at 1-800-MEDICARE can answer your questions. 1-800-MEDICARE CSRs can give you information about Medicare coverage and costs, health plan options, and your Medicare claims. For example, 1-800-MEDICARE CSRs can:

  • Answer general Medicare questions
  • Order Medicare publications for you
  • Help you compare Medicare health plans, Medigap policies, and prescription drug plans
  • Answer questions about your claims and other insurance coverage
  • Check your eligibility for certain preventive services
  • Give referrals to helping agencies and partners such as State Medicaid agencies
  • Help you find a participating Medicare provider
  • Help you find and compare hospitals, home health agencies, nursing homes, and dialysis facilities in your area

For more information, please see our Fact Sheet on 'Where to Get Your Medicare Questions Answered'.

CMS Contact Information

1-800-MEDICARE (1-800-633-4227) 24 hours, 7 days a week, including some federal holidays.

TTY/TDD users can call 1-877-486-2048. However, the interactive phone system is available 24 hours every day of the year.

Mailing Address

Headquartered in Baltimore, Maryland, CMS' Postal Service mailing address is:Centers for Medicare & Medicaid Services, 7500 Security Boulevard, Baltimore MD 21244-1850