Wisconsin may have improperly claimed an estimated $454.9 million in federal Medicaid reimbursement for its school-based program, according to an audit from the Office of Inspector General at the U.S. Department of Health and Human Services. The office issued the report on September 30 and posted it publicly on October 2. Wisconsin generally disagrees with what the auditors found.
The number is an estimate, not a bill. It comes from a review of the $505.5 million that Wisconsin claimed from Medicaid for school-based services over a four-year period, so the auditors are questioning roughly nine of every ten dollars in that claim. Nothing in the report says the money has been taken back. What Wisconsin taxpayers and the families whose children use school-based Medicaid services can follow is how the dispute between the federal inspector general and the state gets settled, because the federal government pays a share of what the state spends on Medicaid.
The report is dated September 30, and the refund question it raises stays open until Wisconsin and federal Medicaid officials resolve their disagreement over the $454.9 million.
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How $505.5 million became $454.9 million
The audit covered claims from July 1, 2018, through June 30, 2022, according to the full report. Of the $505,513,513 in federal money Wisconsin claimed, $415,887,146 was for services and $89,626,367 was for administrative costs. The inspector general’s estimate of improper claims is built from two separate findings, and they add up to the headline figure.
The claims were filed by the Wisconsin Department of Health Services, the state agency that runs Medicaid, and the report names Public Consulting Group as the contractor involved in the school-based program. To test the time studies, the auditors drew a sample of 300 combinations of a sampled moment and a school district. The report covers the four-year window from mid-2018 to mid-2022, so it describes claims the state filed years ago, not current billing.
The first is at least $67 million that Wisconsin claimed on the strength of unsupported coding in its random moment time studies, along with services delivered by unlicensed providers. A random moment time study is a statistical method for working out what share of a school employee’s time goes to a given activity, and states use the results to decide how much of a school’s cost can be billed to Medicaid.
The second is a much larger $387.9 million. The inspector general says Wisconsin “could not provide documentation to support ratios used to allocate costs to Medicaid,” and so the state may have claimed that amount improperly too. The report summary adds a third concern: the time studies did not sample moments at the start of the school year, which may have produced more unallowable costs. It puts no dollar figure on that one.
What the inspector general wants Wisconsin to do
The office made six recommendations. Two carry dollar amounts. Wisconsin should refund $67 million to the federal government, and it should either refund $387.9 million or produce documentation that reasonably supports the allocation ratios it used. The other four are procedural and aimed at helping the state prepare claims that are accurate and supportable.
That second recommendation leaves the state a way out. If Wisconsin can document how it split school costs between Medicaid and everything else, the $387.9 million portion does not have to be repaid. The first portion works differently, since it rests on coding and licensing problems rather than missing paperwork.
Where Wisconsin disagrees
According to the highlights, the state agency “generally disagreed with our findings” and disagreed with some of the recommendations, while describing steps it has taken to improve compliance with federal requirements. On the first finding, the state agreed in part. On the second and larger one, it disagreed. The highlights document does not record a position on the third finding.
This audit is not a one-off. The inspector general describes it as part of a series of reviews of states that claim Medicaid school-based costs with help from contractors. Earlier audits in the series found that states claimed unallowable federal reimbursement because contractors improperly conducted random moment time studies.
Following the audit through to a refund decision
Audit estimates like this one do not become repayments on their own. The inspector general recommends, the state responds, and federal Medicaid administrators decide what, if anything, is owed. The place to watch for later developments is the inspector general’s reports listing, where the Wisconsin report appears with its September 30 issue date, along with the full report number, A-02-24-01020, that identifies it.
Several things matter in the coming weeks and months. One is whether Wisconsin produces documentation for its allocation ratios, since that decides the $387.9 million portion. Another is whether the state’s disagreement with the $67 million finding is resolved in its favor or the federal side holds its position. A third is whether other states in the same series of audits receive findings of a similar size.
The sums themselves rest on the inspector general’s own report. The audit examined $505.5 million in school-based claims and estimated that $454.9 million of it, made up of at least $67 million and $387.9 million, may have been improperly claimed.
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This article was produced with AI assistance and reviewed by The Financial Wire’s editorial team.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
