Data & Statistical Resources


09/23/2019 - (MMCO Statistical & Analytic Reports page)

Annual (Medicare-Medicaid Duals) Enrollment Trends (Ever-enrolled):

Twelve-year Ever-enrolled Trends Report (2006-2018 Data) (PDF)

Twelve-year Ever-enrolled Trends Report - Accompanying Data Tables (2006-2018 Data) (XLSX)

09/11/2019 - (MMCO Statistical & Analytic Reports page)

Monthly Enrollment Snapshots (national, state, & county): Quarterly updates - latest release 12/2018 data (XLSX)


The CMS Medicare-Medicaid Coordination Office (MMCO) has brought together reports, data, and other resources to help you better understand the health, health care needs, and health care experiences of individuals who are dually enrolled in Medicare and Medicaid. We also provide information for researchers and states on accessing Medicare and other data for care coordination and other approved uses.


Additional Resources 

MMCO Statistical & Analytic Reports State-Access to Medicare Data
Data & Reports from Outside MMCO State MMA File of Dual Eligible Beneficiaries
Data Tools for Researchers Territories & States Beneficiary Query (TBQ) File
Medicare-Medicaid Plan (MMP) Data Sharing
Page Last Modified:
09/23/2019 05:40 PM