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Ohio Medicaid Program Integrity Controls

Ohio Medicaid Left $4.68 Billion Unreconciled and Unreviewed

Summary

Ohio's Auditor of State checks the state's $40-billion-a-year Medicaid program twice: once in the annual Single Audit, once in a supplemental management letter. Five months apart in 2026, both landed on the same theme. The March audit found the office responsible for clawing back overpayments to hospitals had been switched off since September 2023, and that nearly half of the alerts meant to catch income fraud sat unresolved for months past their deadline. The July letter added two more numbers on top: $857 million in provider funds the agency never reconciled, and $3.82 billion in drug-manufacturer rebates it never reviewed -- plus security gaps that included unrevoked computer access for former employees.

By Nero · July 17, 2026

Every state that spends federal money above a threshold files a Single Audit -- an independent annual check, performed for Ohio by the elected state Auditor's office, of whether the state complied with the rules attached to that money. Ohio's Single Audit for the year ended June 30, 2025, issued in March 2026, put five separate control failures on the books for the Ohio Department of Medicaid (ODM) -- the agency that ran $29.6 billion of the state's $40-billion-a-year Medicaid and programming that year, covering 2.9 million residents. Then, five months later, a July 2026 management letter -- a supplemental report an auditor writes when a deficiency is real but not severe enough to force a formal compliance finding -- added more: $857 million in provider funds ODM never reconciled, and $3.82 billion in drug-manufacturer rebates it never checked.

Two documents, five months apart, the same theme

The two reports test different things but arrive in the same place. The Single Audit is the formal, legally required document; its Medicaid findings carry federal compliance codes and get filed with the U.S. government's Federal Audit Clearinghouse. The management letter is informal by comparison -- Ohio's Auditor of State confirmed that letters like it aren't posted publicly at all, only available on request -- but its author is the same office, checking the same agency, the same fiscal year. Auditor of State Keith Faber said the office "continue[s] to identify deficiencies in Medicaid spending, which represents the largest taxpayer-funded programming in the state budget," adding that "more needs to be done to ensure public funds are being used to help the most vulnerable among us and not stolen or wasted."

Unreconciled + unreviewed
$4.68B
$857M in provider franchise-fee funds never reconciled, plus $3.82B in drug-manufacturer rebates never reviewed by a third-party administrator -- per the Auditor's July 2026 management letter, on a program that administers about $40 billion a year
IEVS alerts overdue
48.4%
833,232 of 1,721,772 income-verification alerts blew the 45-day deadline, clearing an average of 217 days late, out of 3.0 million IEVS alerts issued statewide that year
Overpayment recovery
Frozen 21 mo.
Hospital take-back claims -- the process that recoups provider overpayments -- suspended since September 2023, still unresolved through the audit period's June 30, 2025 close; third-party liability verification records were separately lost in a July 2025 system migration
$4.68 billion in Ohio Medicaid money the state's own auditor says went unchecked
Two fund streams a July 2026 management letter found ODM never reconciled or reviewed, FY2025
Provider franchise-fee funds never reconciled
857,000,000
Drug-manufacturer rebates never reviewed
3,820,000,000
Source: Ohio Auditor of State, management letter press release, July 16, 2026
View data as table
Both figures are from the Auditor of State's July 16, 2026 announcement of a management letter supplemental to the FY2025 Single Audit; the underlying letter itself is not publicly posted, so these are the office's own stated totals, not this piece's estimate.
Provider franchise-fee funds never reconciled857,000,000ODM did not perform the required annual reconciliation to verify franchise-fee assessments were accurate and complete
Drug-manufacturer rebates never reviewed3,820,000,000ODM did not obtain or review the third-party administrator reports needed to confirm these rebates complied with program requirements

The system meant to catch overpayments was switched off for 21 months

The Single Audit's sharpest finding concerns something narrower than reconciliation: recovery. When a review vendor flags a hospital claim as improperly paid -- billed in error, lacking pre-admission review, not medically necessary -- the state is supposed to issue a "take-back claim," an adjustment request that recoups the overpayment from the provider. In September 2023, ODM suspended processing those take-back claims through its OMES Fiscal Intermediary system. The Single Audit's testing period ran through June 30, 2025 -- 21 months after the suspension began -- and found the claims still weren't being processed; the Department told auditors it expects a backlog once the underlying system issue is fixed, with no date given for when that will happen.

Third-party liability verification -- confirming a Medicaid recipient's other insurance paid its share first -- broke down the same way. It failed after ODM retired its old MITS system on July 7, 2025: the historical verification records simply didn't carry over to the replacement system, so auditors could not confirm the Department's compliance for the entire audit period.

A parallel breakdown showed up in fraud detection. Ohio Benefits, the state's eligibility system, generates an alert -- called an IEVS match -- whenever a recipient's reported income disagrees with outside records like Social Security or the ; federal rules give county caseworkers 45 days to clear each one. Of 1,721,772 IEVS alerts the audit tracked for Medicaid and CHIP in SFY2025, 833,232 -- 48.4% -- blew that deadline, clearing anywhere from 1 to 433 days late, an average of 217 days.

A separate data match found the same kind of gap on the other end of a beneficiary's life: comparing payments against Ohio's own death records turned up 13,159 payments totaling $2.5 million made on behalf of 2,165 deceased recipients. Of 60 of those cases tested further, 21 (35%) had a payment the Department still hadn't recovered.

Nearly half of Ohio Medicaid's income-mismatch alerts blew their 45-day deadline
Income Eligibility Verification System (IEVS) alerts sent to county caseworkers, by whether they were cleared on time, SFY2025
Cleared within the required 45 days
888,540
Not cleared within 45 days
833,232
Source: Ohio Auditor of State, State of Ohio Single Audit for FY2025, Finding 2025-014
View data as table
833,232 of 1,721,772 IEVS alerts -- system-generated flags that a recipient's reported income doesn't match outside records -- were not resolved within the 45-day federal deadline during SFY2025. This is one finding among five in the Medicaid section of Ohio's FY2025 Single Audit; a separate 3.0 million IEVS alerts were issued that year in total, of which this 1,721,772 is the subset the Department's own tracking file covered for the audit's timeliness test.
Cleared within the required 45 days888,54051.6% of the 1,721,772 alerts tracked
Not cleared within 45 days833,23248.4% of alerts; cleared between 1 and 433 days late, averaging 217 days late

What the July letter added, and who has to answer for it

The July management letter widened the picture past claims processing and into money controls. ODM had not performed the required annual reconciliation of $857 million in provider funds tied to franchise-fee assessments -- the mechanism Ohio uses to help fund its share of Medicaid. It had not obtained or reviewed the third-party administrator reports needed to confirm $3.82 billion in drug-manufacturer rebates complied with program requirements. And it had missed deadlines depositing fees and taxes it collected, which auditors warned raises the risk that "funds could be lost, stolen, or misappropriated."

On the computer systems that run all of this, auditors found "inappropriate user access and a failure to revoke access to former employees," warning that gap "increases the risk of incorrect or inappropriate payment transaction processing or the alteration of data files, which could result in misuse or fraudulent misappropriation of state resources or federal program monies" -- a labor-side control gap sitting next to the money-side ones, on a program whose eligibility determinations still lean on 88 county caseworkers and the vendors and third-party administrators ODM contracts with to process claims and rebates. ODM acknowledged the letter in a written response and outlined some steps it says it's taking, though neither the Auditor's release nor the Single Audit's corrective-action plans give a firm date by which the take-back-claims backlog, the franchise-fee reconciliation, or the rebate reviews will be current.

  • Ohio's Auditor of State found $4.68 billion in FY2025 Medicaid fund flows the state's own agency never checked: $857 million in provider funds never reconciled, and $3.82 billion in drug-manufacturer rebates never reviewed -- disclosed in a July 2026 management letter that supplements, rather than replaces, the March 2026 Single Audit.
  • The overpayment-recovery system was off for at least 21 months. ODM suspended processing hospital 'take-back claims' -- the mechanism that recoups improper payments from providers -- in September 2023 and still hadn't restarted it by the close of the FY2025 audit period, June 30, 2025.
  • 48.4% of income-verification fraud alerts blew their legal deadline, clearing an average of 217 days late instead of the required 45 -- one of two Medicaid findings the Single Audit marked as a repeat of the prior year's audit.
  • A separate breakdown let $2.5 million reach dead recipients. 13,159 payments went out on behalf of 2,165 deceased Ohioans; in a 60-case tested sample, 35% of the resulting overpayments were still unrecovered.
  • The access-control gap is a personnel failure, not just a financial one: auditors found former ODM employees still had system access, and flagged the risk of fraudulent payment processing or data alteration that follows from it. ODM has acknowledged the findings; no public timeline yet states when the backlog clears or the reconciliations are complete.

This piece draws on two distinct Auditor of State products covering the same FY2025 period (July 2024-June 2025): the statutory Single Audit (issued March 27, 2026, filed with the federal Audit Clearinghouse) and a supplemental management letter (announced via press release July 16, 2026). Ohio's Auditor of State does not post management letters publicly -- only the announcing press release is a public document -- so the $857 million, $3.82 billion, security-access, JMOC-reporting, and late-deposit figures rest on the Auditor's own public statement about its letter, not on this piece's independent inspection of the letter itself; all are attributed to that office by name.

One figure from the same press release is deliberately excluded: its claim that 'the annual State Single Audit reported an error rate of 15.6%... meaning potential unallowable costs of up to $4.4 billion.' The Single Audit was read in full and that rate and dollar figure do not appear in it; unable to verify where in the audit record it originates, this piece omits it rather than repeat an unconfirmed number. The $248,059 in questioned costs described in this piece's supporting analysis comes from a small statistical sample (81 Medicaid and 80 recipients), not a full-population review -- it is not a program-wide improper-payment estimate.

Sources(2) ▾
  • Ohio Auditor of State, State of Ohio Single Audit for the Year Ended June 30, 2025 (2026-03-27)Ohio's statutory single audit of federal funds for FY2025 (July 1, 2024-June 30, 2025), filed with the federal Audit Clearinghouse. Contains the Ohio Department of Medicaid (MCD) section, Schedule of Findings and Questioned Costs, p. 62-77: Finding 2025-013 (Medicaid Cluster and - Ineligible Recipients, including the deceased-recipient testing), Finding 2025-014 (Medicaid Cluster and - IEVS Alerts), Finding 2025-015 (Transparency Act Reporting), Finding 2025-016 (Third Party Liability), and Finding 2025-017 (Surveillance Utilization Reviews / take-back claims). Read directly, full text extracted via pdftotext; searched for and confirmed absent: no reference anywhere in this document to a 15.6% error rate or a $4.4 billion improper-payment estimate, a figure the Auditor's July 2026 press release attributes to 'the annual State Single Audit' -- that specific figure could not be located in this document and is not used in this piece. ohioauditor.gov · original document
  • Ohio Auditor of State, Incomplete Monitoring and Reporting, Lax Security Controls Among Issues Identified in Latest Review of Ohio Department of Medicaid (press release) (2026-07-16)The Auditor of State's official announcement of a management letter covering ODM's FY2025 programming (year ended June 30, 2025), supplemental to the Single Audit above. Read directly in full via raw HTML fetch (not just an AI-summarized rendering). A management letter reports control deficiencies an auditor judges too minor to require a formal compliance finding in the Single Audit itself, but still real enough to report to management in writing; Ohio's Auditor confirmed by phone/web inquiry that management letters are not posted publicly and are available only via a report-request form, so this press release -- not the underlying letter -- is the primary public record of these specific findings (franchise-fee reconciliation, drug-rebate review, security access, JMOC reporting, late deposits). Excluded from this piece: the release's claim that 'the annual State Single Audit reported an error rate of 15.6%... meaning potential unallowable costs of up to $4.4 billion' -- searched for in doc-fy2025-audit and not found there. ohioauditor.gov · original document
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