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The Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) suite of files includes beneficiary-level Medicare and Medicaid enrollment and claims data for Medicare-only, Medicare-Medicaid dually enrolled and Medicaid-only blind and disabled beneficiaries. The 27 CCW Chronic Conditions plus an additional 25 other conditions flags are part of the included data.

What does this file include? (variable highlights)

  • Eligibility, enrollment variables
  • Aggregated cost and use
    • Medicare: FFS, PDE includes FFS and MA
    • Medicaid: FFS, managed care encounter where available
  • Prescription Drug service utilization reported for classes of drugs
  • All four files are released for approved MMLEADS data requests
    • Beneficiary file
    • Medicare Services file
    • Medicaid Services file
    • Conditions file

Special considerations

Medicare, Medicaid
Privacy Level
Research Identifiable Files