Centers for Medicare & Medicaid Services (CMS)
Medicare Glossary
The federal agency within the U.S. Department of Health and Human Services that administers Medicare, Medicaid, and the Children's Health Insurance Program (CHIP). CMS sets the rules and regulations for these programs.
This content is for educational purposes only and does not constitute a recommendation of any specific Medicare plan. Benefits, costs, and availability vary by plan and location. For complete information about your Medicare options, visit Medicare.gov or call 1-800-MEDICARE (1-800-633-4227), TTY: 1-877-486-2048, available 24 hours a day, 7 days a week.
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