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Data & Statistical Resources


06/06/2019 - Monthly Enrollment Snapshots (national, state, & county): Quarterly updates - latest release 09/2018 data

03/21/2019 - Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) Public Use File (PUF) Version 2.0 (MMLEADS PUF V2.0 (2006-2012) (02/2019)


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