Ohio Medicaid Audit Flags Weak Oversight and Billions in Potentially Improper Payments

Ohio’s Medicaid agency failed to complete required claims monitoring, missed required reports, made untimely deposits and did not reconcile $857 million in provider-fee reimbursements, according to a management letter released July 16 by the Ohio Auditor of State.

The findings concern the Ohio Department of Medicaid’s administration of a program that serves about 2.9 million residents and administers roughly $40 billion annually in health care and related programming. They are separate from, but related to, findings in the State of Ohio’s fiscal-year 2025 Single Audit, released March 27, 2026.

The audit findings do not establish that Ohio lost billions of dollars or that the payments were fraudulent. The largest figures are projections based on tested samples and estimates of what similar errors could mean across the broader audited population.

What the July management letter found

The management letter covered Ohio Medicaid programming for the fiscal year that ended June 30, 2025. Auditors found that the department did not complete monitoring of claims for $28.6 billion in Medicaid Cluster benefits and $916.7 million in Children’s Health Insurance Program benefits administered through fiscal intermediaries.

Fiscal intermediaries and other service organizations process claims on the department’s behalf. The auditor said incomplete monitoring increases the risk that payments could be inaccurate, incomplete, delayed or out of compliance with federal requirements. The Auditor of State recommended that the department reevaluate and strengthen its monitoring controls.

The review also identified several financial-administration problems:

• Ohio Medicaid did not perform the annual reconciliation of $857 million in funds used to reimburse health care providers for covered services. The reconciliation was intended to verify that franchise-fee assessments were accurate and complete.
• The department did not have procedures needed to meet reporting requirements for the Pregnant Women, Children and Infants and Access Barriers Assessment reports. As a result, required reports were not submitted to the Ohio Joint Medicaid Oversight Committee.
• Fees, taxes and other funds were deposited late on multiple occasions. Auditors said untimely deposits increase the risk that funds could be lost, stolen or misappropriated and can leave managers relying on financial information that is not current or entirely accurate.
• Ohio Medicaid did not obtain and review reports from third-party administrators related to $3.82 billion in drug rebates from manufacturers. Auditors said that limited the department’s ability to verify compliance with program requirements.

Auditors also found weaknesses in access to Medicaid computer systems, programs and data, including inappropriate user access and failures to revoke access for former employees. Those gaps increase the risk of improper payment processing, altered data or misuse of state or federal funds.

What the separate State Single Audit showed

The 2025 State of Ohio Single Audit reviewed federal funding administered from July 1, 2024, through June 30, 2025. It reported a 15.6% error rate in tested Medicaid payments involving services for residents who were deceased or otherwise ineligible for Medicaid programming.

Using the results from the tested transactions, auditors estimated potential unallowable costs of approximately $825 million to $4.4 billion if similar conditions existed throughout the audited population. The Auditor of State’s Medicaid audit materials identify the lower projection as about $825.4 million and the higher projection as about $4.47 billion; the public release rounded the range to about $800 million to $4.4 billion.

Those figures are not a bill for Ohio, a finding that every payment was improper or proof of fraud. Audit projections extend results from a sample to a larger population using the assumptions and parameters described in the audit. Confirmed losses, recoveries and criminal cases require separate documentation.

What happens next

The Ohio Department of Medicaid acknowledged the management letter and outlined efforts to address the identified issues. The cited records do not establish that every corrective action has been completed.

For residents and taxpayers, the next meaningful checkpoints are agency corrective-action reports, future audits and evidence that Ohio Medicaid has strengthened claims monitoring, eligibility controls, financial reconciliations, rebate reviews and system-access procedures.

The Auditor of State provides financial and compliance audit oversight. The Ohio Attorney General’s Medicaid Fraud Control Unit has a separate enforcement role: investigating and prosecuting alleged fraud by health care providers and enforcing the state’s Patient Abuse and Neglect Law.

That distinction matters. On July 15, the attorney general announced indictments accusing a former central Ohio couple of a $9.3 million Medicaid billing scheme, along with charges against 10 other providers involving alleged losses totaling $563,860. The cases involve criminal allegations, and the defendants are presumed innocent unless proved guilty in court.

The Medicaid Fraud Control Unit’s fiscal-year 2026 funding includes a $16,553,872 federal grant and $5,517,956 from the Ohio Attorney General’s Office, or about $22.1 million combined. Enforcement cases may establish specific alleged or proven conduct; the Auditor of State’s statewide findings instead identify weaknesses in Ohio’s systems for monitoring and controlling Medicaid payments.

Sources

• Ohio Auditor of State Medicaid management-letter release
• Ohio Attorney General Medicaid Fraud Control Unit indictment release

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