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Medicaid audit topic guide

Managed Care

Definition

Medicaid managed care delivers benefits through contracted health plans that receive payments to coordinate and cover enrollee services. Audit work examines how agencies set expectations, monitor plan performance, validate reported data, and protect access to care.

Why auditors care

Managed care places substantial public spending and day-to-day service decisions with outside plans and their contractors. Weak contract monitoring, incomplete encounter data, or inaccurate financial reporting can conceal improper payments and make it difficult to determine whether enrollees received required care.

Evidence coverage

Reports
64
States represented
21 + federal
Publishing agencies
24
Publication period
2018–2025

State coverage reflects each report’s recorded jurisdiction.

Supporting findings

78 findings

  1. The State agency did not always terminate Medicaid managed care enrollment after receiving notification that an enrollee was incarcerated, with 29 cases where termination did not occur as required.

    Illinois Medicaid Managed Care Capitation Payments for Incarcerated EnrolleesU.S. Department of Health and Human Services, Office of Inspector GeneralDec 2025

  2. Medicaid agencies made unallowable capitation payments after enrollees’ deaths for 99 of the 100 sample capitation payments.

    Medicaid Agencies Made Millions in Unallowable Capitation Payments to Managed Care Organizations on Behalf of Deceased EnrolleesU.S. Department of Health and Human Services, Office of Inspector GeneralDec 2025

  3. DOH lacked sufficient oversight of managed care provider networks.

    Medicaid Program: Oversight of Managed Care Provider NetworksOffice of the New York State Comptroller, Division of State Government AccountabilityOct 22, 2025

Recommendations

37 recommendations

  1. Review the $44.5 million in missed rebates and invoice manufacturers, as appropriate; where rebates cannot be sought due to missing NDCs or invalid procedure code and NDC combinations on physician-administered drug claims paid by MCOs, follow up with MCOs for proper drug information or seek recovery directly from MCOs for the missed rebates.

    Medicaid Program: Maximizing Drug Rebates Under the Federal Medicaid Drug Rebate ProgramOffice of the New York State Comptroller, Division of State Government AccountabilityApr 5, 2023

  2. The Health Plan should work with its parent company to strengthen the Health Plan’s processes and controls so that: Shared expenses reported (1) reflect valid expenses and (2) benefit the Health Plan. Timesheets are reviewed in accordance with the Commission’s and the parent company’s requirements.

    An Audit Report on Cook Children’s Health Plan, a Managed Care OrganizationTexas State Auditor's OfficeJul 2022

  3. Increase oversight of Local Management Entities/Managed Care Organizations provider enrollment.

    Medicaid Provider Enrollment Performance AuditNorth Carolina Office of the State AuditorFeb 2021