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Center for Medicare and Medicaid Services - Dual Enrollment

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Center for Medicare and Medicaid Services - Dual Enrollment


Dual enrollment of Medicare and Medicaid by county

Product type


Update frequency



Apr 27, 2023

Delivery method


This public dataset presents counts of Medicare-Medicaid dual enrollees, including those in Medicare Savings Programs, by eligibility type, who were enrolled in a given month. They include numbers of individuals at both the state and county level. The underlying source data are the Medicare Modernization Act (MMA) data that states submit to Centers for Medicare & Medicaid Services (CMS) on an at-least monthly basis. These data are subject to retroactive adjustment.

Note that these are monthly snapshots submitted by states to the CMS and are inherently lower than ever-enrolled counts which include persons enrolled at any time during a calendar year.


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