Office of Inspector General's Partnership Plan - State of Arizona, Office of Program Integrity's Medicaid Report on Audit of End Stage Renal Disease Services

The Arizona Office of Program Integrity (OPI) performed this audit as part of our partnership effort with States to expand audit coverage of the Medicaid program.  The audit covers Medicaid payments for end stage renal disease services for the period January 1, 1996 through June 30, 1999.  The OPI identified potential overpayments of nearly $3.4 million (Federal share, approximately $2.2 million).  The potential overpayments include claims with separate charges for laboratory tests included in the composite rates (unbundling), services and charges exceeding authorized amounts and frequency limits without appropriate medical documentation, and billing for laboratory tests without Clinical Laboratory Improvement Amendments certification.  The OPI recommended financial adjustments as well as procedural improvements.