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About us

The Centers for Medicare & Medicaid Services (CMS) is a federal agency in the US Department of Health and Human Services (HHS) that administers the Medicare program and works in partnership with state governments to administer Medicaid, the Children's Health Insurance Program (CHIP), and health insurance portability standards.

We also have other responsibilities, including:

  • The administrative simplification standards from the Health Insurance Portability and Accountability Act of 1996 (HIPAA).
  • Quality standards in long-term care facilities (nursing homes) through the survey and certification process.
  • Clinical laboratory quality standards under the Clinical Laboratory Improvement Amendments (CLIA).

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Provider claims or billing questions

If you're a Medicare FFS provider with a question about claims or billing, contact your Medicare Administrative Contractor.opens in new window