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Duplicate Payments for Beneficiaries with Multiple Medicaid Identification Numbers

During a preliminary data match, OIG identified a significant number of individuals who were assigned more than one Medicaid identification number and for whom multiple Medicaid payments were made for the same period. We will review duplicate payments made by States on behalf of Medicaid beneficiaries with multiple Medicaid identification numbers and identify States' procedures or other controls for preventing such payments.

Announced or Revised Agency Title Component Report Number(s) Expected Issue Date (FY)
Completed (partial) Centers for Medicare & Medicaid Services Duplicate Payments for Beneficiaries with Multiple Medicaid Identification Numbers Office of Audit Services A-04-16-07061;
A-02-20-01007;
A-04-20-07094;
W-00-16-31374;
W-00-20-31374;
W-00-21-31374;
A-04-21-07097;

various reviews		 2025