Medicare-Medicaid Linked Enrollee Analytic Data Source

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: FFSPDE 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

Availability of this file

CY 2006-2012
See what is in this file