Medicaid: Improved Oversight Needed of State Eligibility Error Corrective Action Plans

What GAO Found The Centers for Medicare & Medicaid Services (CMS) oversees the accuracy of Medicaid eligibility determinations through the Payment Error Rate Measurement (PERM) and the Medicaid Eligibility Quality Control (MEQC) programs. CMS estimates improper payments due to eligibility errors through its PERM program, and both the PERM and MEQC programs identify the root and specific causes of Medicaid eligibility errors and require states to develop corrective action plans (CAP) to address them. Root causes describe the source of the error and specific causes describe the exact action take