Everyone Quoted the Optum Number. Almost Nobody Read What It Measured.

The most important sentence in the Optum report on Minnesota’s high-risk Medicaid programs is on page one, in the cover letter. Optum’s observations, it says, “are not determinations of fraud, waste, or abuse.”

That sentence didn’t make the news. A billion-dollar figure did, and everybody picked a side about what it proved. So I read the report. Then I read the Office of the Legislative Auditor’s September 2026 summary of it, and the three 2026 session laws that change how Minnesota polices provider billing. The numbers say something much narrower than the fight about them. The law says something much more useful to the people who actually live under it: providers, the people who work for them, and the taxpayers paying for all of it.

What did Optum actually measure?

The Department of Human Services brought in Optum State Government Solutions under a one-year contract. The vulnerability assessment, dated January 31, 2026 and marked “Final”, is what Optum produced in the first ninety days. It covers fee-for-service claims only, with first dates of service from January 2022 through October 2025, across 14 programs the state had labeled high-risk. Optum’s Table 1 puts that universe at 65,486,018 claim lines and $9,446,404,650.72 paid.

Optum then sorted the money it flagged into two buckets, and it was careful to keep them apart:

The first bucket is claims that broke a rule somebody actually wrote down. The second is claims paid under rules that never said clearly whether they should be paid. Optum describes that second category as “usually, missing/vague policy found within vulnerabilities”, and adds that it “May require a review of records for medical necessity.”

Fraud is a third thing, and it’s the thing everyone argued about. Neither bucket measures it. Optum says so more than once.

Run the bucket figures against the universe. The broken-rule bucket is about 0.55 percent of the dollars Optum reviewed. The vague-rule bucket is about 18.5 percent.

Optum’s closing remarks then call the second bucket “potential recoveries”. That’s a big word for money paid under a rule that didn’t say no. Recovery under Minn. Stat. § 256B.064 starts with someone who “has been improperly paid”. Whether a claim was improper under a rule that never clearly forbade it is the whole argument, not a premise you get for free. And the table’s own title points the other way: savings from “revising and clarifying policy language”. You revise a rule for next year’s claims.

One line in the report is bigger than the spending it measures

Here’s the part I couldn’t get past. Of the $1.75 billion, $1,051,766,669.07 sits in a single program: Early Intensive Developmental and Behavioral Intervention, or EIDBI.

Optum’s Table 1 puts the fee-for-service EIDBI claims it tallied across the same 46 months at $743,904,931.26. So the “potential savings” figure for EIDBI is about 141 percent of every fee-for-service EIDBI dollar Optum counted. The line counts go the same direction: 7,856,008 flagged EIDBI lines in Table 5, against 6,251,811 total EIDBI claim lines in Table 1.

Transportation shows the same thing on a smaller scale. Table 1 puts fee-for-service Non-Emergency Medical Transportation payments at $29,748,459.73. Table 4 flags $23,964,871.86 of that as clear policy violations, about 81 percent, and Table 5 flags another $17,384,185.24. Add those two and you’re $11.6 million past the fee-for-service total Optum tallied.

Tables 4 and 5 both carry the same footnote: “Counts may be duplicated.” I can’t reconcile those tables from the public version, and the report doesn’t try. But a figure bigger than the spending it measures can’t be the amount that spending lost.

The two institutions that have looked at this since don’t supply a better number. The Legislative Auditor’s summary has no dollar figures at all, and it says plainly that “OLA did not independently verify Optum’s work, and this summary should not be interpreted as an endorsement of Optum’s findings or recommendations.” The Department’s response letter, attached to that summary, says that “many of the claims initially identified in the Optum report were later determined not to warrant concern after the analytics were corrected to ensure they properly reflect program policy”, that “the total number of flagged claims was significantly reduced, and the number of denied claims are minimal.” No figures there either.

None of this makes $52.3 million small. That’s money paid on claims that, by Optum’s read, broke a written rule, and nearly half of it ($23.96 million) is transportation. Nobody should wave it off.

And one more number deserves a second look. Optum’s Table 6 shows fee-for-service payments in these programs falling from $566,510,547.65 in the third quarter of 2025 to $400,709,342.63 in the fourth, a $165,801,205.02 drop that Optum books as “cost avoidance.” Optum’s own introduction says the assessment ran “concurrently with the payment pause”. The table can’t tell you how much of that drop was bad billing that stopped and how much was legitimate billing that waited.

What the Auditor did add is the unglamorous fix. Among its recommendations: “The Legislature should ensure eligibility criteria established in law are clear and explicitly defined”, and the Legislature should set in statute, or direct DHS to clarify, “The maximum number of hours that can be billed for a given program or service provided to an individual in a single billing cycle.” That’s the vague-rule bucket, answered in two sentences.

What did the Legislature build?

A new watchdog, on a schedule. Laws 2026, chapter 92 (S.F. 856), signed May 14, 2026, creates Minnesota Statutes chapter 15E and an Office of the Inspector General that “serves as an independent entity in the executive branch”. The office doesn’t legally exist until most of the chapter takes effect on January 1, 2027. The inspector general must be appointed by February 1, 2027. And the session law sets the finish line in one sentence:

By September 1, 2027, the Office of the Inspector General must be fully operational.

The inspector general can’t appoint peace officers or stand up the office’s Anti-Fraud and Waste Bureau until January 1, 2028.

For a provider, start with the subpoena power. It’s a court’s:

In all matters relating to official duties, the inspector general has the powers possessed by courts of law to issue and have subpoenas served.

And the duty to cooperate reaches straight into private business. It covers “all corporations, firms, and individuals having business involving the receipt, disbursement, or custody of public funds”, who must, among other things, “attend and answer under oath the inspector general’s lawful inquiries” and “produce and exhibit all books, accounts, documents, data of any classification, and property that the inspector general requests to inspect”. Ignore a subpoena and the inspector general goes to district court, which “shall compel obedience or punish disobedience as for contempt”. That’s the same machinery Minnesota courts use on anyone who ignores an order. Swear falsely to the inspector general and it’s a gross misdemeanor.

So if you bill a state program, an inspector general’s subpoena isn’t a letter you answer when you get around to it. It’s a court order with a different letterhead.

What it didn’t build

Medicaid fraud still belongs to DHS. The new chapter says so in as many words:

The Department of Human Services has primary responsibility to investigate fraud in the Medicaid program, but the inspector general has authority to conduct independent investigations related to the Medicaid program as necessary.

Even that independent authority waits on Washington. The paragraph takes effect January 1, 2027, “or upon federal approval from the Centers for Medicare and Medicaid Services, whichever is later.” And the transition section moves employees from existing inspector-general offices into the new one, with four exceptions: Human Services, Corrections, the Department of Education’s student-maltreatment staff, and Children, Youth, and Families. The first one is the tell: “No employees or positions in the Department of Human Services are transferred under this section”.

The new office is a second set of eyes on Medicaid, not a replacement for the first. And nothing in chapter 15E writes a clearer billing rule. That was never its job.

If you run a small provider: the payment hold

This is where 2026 changed the most, and where a small provider can get hurt fastest.

Laws 2026, chapter 121 (S.F. 4476), signed May 27, 2026, rebuilt the Medicaid withhold in § 256B.064. Under new subdivision 2c, the commissioner “must temporarily withhold or reduce payments to an individual or entity without providing advance notice” when there’s “a credible allegation of fraud for which an investigation is pending”. The list of sources that can make an allegation credible now includes “court filings and other legal documents, including but not limited to police reports, complaints, indictments, informations, affidavits, declarations, and search warrants.”

Notice comes within five days after the money stops, unless law enforcement asks in writing that it wait, and it has to give you something to work with: “date ranges of suspected claims, locations of suspected service delivery, and general nature of individual or entity conduct”.

Then there’s the process you get:

• You have 30 days to ask for an administrative review, and DHS has ten business days to send it to the Court of Administrative Hearings.
• You pay half. The review costs “must be borne equally by both parties.”
• The only question is “whether the commissioner can establish that there is a credible allegation of fraud”. The judge can’t make findings on whether the allegation is true.
• The commissioner’s evidence goes in under seal and gets reviewed in camera, and “The commissioner must not be subject to discovery by the individual or entity during the proceedings.”
• If the hold is still on after 90 days, a judge reviews, again under seal, whether anyone is “actively pursuing an investigation”, and repeats that every 90 days. That review is advisory: “the commissioner’s decision to continue a withholding is final and not subject to appeal or reduction.”
• The judge’s findings, conclusions, and recommendations in both reviews “are not subject to judicial review.”

The hold ends when the commissioner decides the evidence is insufficient or the legal proceedings are over. Then the money has to come back within ten days, unless the commissioner has already sent notice of a recovery or sanction. If the provider is convicted of a related crime, the held money is forfeited.

A separate 2026 law did the same thing across state government. Before this year, Minn. Stat. § 15.013 let an agency head withhold program payments “for a period not to exceed 60 days”, only on “a preponderance of the evidence”, with 24 hours’ advance notice and a chapter 14 appeal, and the whole section was set to expire July 1, 2027. Laws 2026, chapter 122 (H.F. 3629), signed May 26, 2026, struck all of that. Now any agency head can withhold on a credible allegation of fraud under investigation, including when “another agency head has determined there is a credible allegation of fraud under investigation and the program participant is a subject of the investigation.” Notice comes within five days after. The withhold “is not subject to appeal under chapter 14.” The sunset is gone.

I understand why. A 60-day cap tells a crook exactly how long to wait. But do the math for an honest home-care agency that makes payroll every two weeks on Medicaid receipts. There’s no end date. The review you’re entitled to asks whether the state had a credible reason to suspect you, not whether you did anything. You pay half of it. You don’t get discovery. And the analytics that flag you might be the kind the Department’s own letter says “were corrected to ensure they properly reflect program policy.”

The withhold itself can’t be appealed under chapter 14. A monetary recovery or sanction still requires “prior notice and an opportunity for a hearing, according to chapter 14,” and that’s the fight that eventually lands in the Court of Appeals on certiorari. The provider who can prove each service from its own records is the one with something to say when that hearing comes.

If you work for one: the part almost nobody mentions

The best fraud detector in any of these programs isn’t an algorithm. It’s the scheduler who knows the visits on the bills never happened.

Minnesota’s False Claims Act, chapter 15C, lets that person sue “on the person’s own account and that of the state”. I’ve covered the statute in full, including its traps, so here’s only what bears on this story.

Chapter 15C draws the same line Optum did. Liability requires acting “knowingly”, and the statute says a person “is not liable under this section for mere negligence, inadvertence, or mistake”. My reading: a claim paid under a vague rule isn’t, by itself, a false claim. That reading has a limit. Chapter 15C’s definition of “knowingly” isn’t limited to actual knowledge; it also covers a person who “acts in deliberate ignorance of the truth or falsity of the information” or “acts in reckless disregard of the truth or falsity of the information”. A vague rule doesn’t protect someone who suspected the claim was wrong and billed it anyway. And a claim for a visit that never happened is false on anyone’s reading.

The money is real. A defendant is liable for a civil penalty keyed to the federal False Claims Act “plus three times the amount of damages” the state sustains. The person who brings the case gets 15 to 25 percent of the recovery if the attorney general intervenes at the outset, 25 to 30 percent if the attorney general never does, and 15 to 30 percent if the attorney general comes in later. For recoveries governed by federal code or rule, the federal portion comes out before the percentage applies.

The complaint is filed in chambers and stays “under seal for at least 60 days”, and you serve the prosecuting attorney with “a written disclosure of all material evidence and information the plaintiff possesses.”

This story sets a trap of its own. A court must dismiss a chapter 15C claim, unless the prosecuting attorney opposes, if substantially the same allegations were publicly disclosed “in a report, hearing, audit, or investigation of the legislature, the governing body of a political subdivision, the legislative auditor, or the state auditor” or “by the news media.” The Auditor’s summary is a report of the legislative auditor. The coverage was news media. My read is that a program-wide description of vulnerabilities, with no provider named, isn’t “substantially the same” as a specific provider’s billing. But don’t build a case on my read when the statute gives you a cleaner route. An “original source” survives the bar, and one way to be an original source is to have “knowledge that is independent of and materially adds to the publicly disclosed allegations or transactions” and to have “voluntarily provided the information to the state or a political subdivision before filing an action”. Get the information to the state first.

Then the protection. If you’re fired, demoted, threatened, or harassed for “lawful acts done by the employee, contractor, agent, or associated others in furtherance of an action under this chapter or other efforts to stop one or more violations of this chapter”, § 15C.145 entitles you to reinstatement, “two times the amount of back pay,” interest, special damages, and attorney fees. You have three years to sue. Minnesota’s general whistleblower statute sits alongside it. And the Medicaid statute itself makes a person who makes a good-faith report “immune from any civil or criminal liability that might otherwise arise from reporting”, and keeps the reporter’s name confidential after the investigation is complete, with narrow exceptions.

Medicaid recoveries often involve federal dollars too, which is why chapter 15C’s share provision accounts for them, and there’s a parallel federal statute: “A person may bring a civil action for a violation of section 3729 for the person and for the United States Government.”

Starting in 2027, the new inspector general also has to run a fraud tip line and website “that allows the person making the report to remain anonymous.” Anonymous tips are useful. They don’t pay a relator’s share, and they don’t come with a retaliation claim attached.

Write the rule down

The biggest number in the Optum report is mostly a count of rules nobody wrote clearly. A subpoena doesn’t fix that. Neither does a payment hold. What fixes it is a line in the provider manual that says what you can bill, how often, and for whom, which is what the Legislative Auditor asked for in two sentences.

Until somebody writes it, the honest provider and the crook are billing under the same vague rule, and the payment hold can’t tell them apart.

Madgett Law, LLC handles business litigation in Minnesota, including disputes with government entities, and evaluates Minnesota False Claims Act and whistleblower-retaliation claims for people who’ve found something inside a company that bills the state. If you’re facing a payment withhold or you know where the bad billing is, send us a message or call 612-470-6529.

Sources: Optum State Government Solutions, Vulnerability Assessment to the Minnesota Department of Human Services and Minnesota IT Services (Jan. 31, 2026, “Final”; public redacted version posted by the Minnesota House of Representatives), cover letter at 1 (one-year contract; first ninety days; “not determinations of fraud, waste, or abuse”), at 2 (date and “Final”), at 5 (assessment concurrent with the payment pause), at 6 (Table 1, fee-for-service universe of 65,486,018 claim lines and $9,446,404,650.72; EIDBI $743,904,931.26; NEMT $29,748,459.73), at 16 (direct versus potential recoveries; “usually, missing/vague policy found within vulnerabilities”; Table 4 caveat), at 16–17 (Table 4, $52,341,065.22 total; NEMT $23,964,871.86; “Counts may be duplicated”), at 17 (Table 5, $1,749,043,272.83 total; EIDBI $1,051,766,669.07 and 7,856,008 lines; NEMT $17,384,185.24), at 18 (Table 6, third-quarter and fourth-quarter 2025 payments and $165,801,205.02 decrease), and at 28 (“potential recoveries”). Office of the Legislative Auditor, OLA Summary of Optum Vulnerability Assessment (Sept. 2026), at 1 (no independent verification; not an endorsement), S-4 and S-5 (eligibility and billing-hours recommendations), and the Department of Human Services response letter dated Sept. 21, 2026, at 7 (unnumbered page) (claims “later determined not to warrant concern”; flagged claims “significantly reduced”). Laws 2026, ch. 92 (S.F. 856), art. 1, § 4 (Minn. Stat. § 15E.10(a)); § 7 (§ 15E.25, subd. 2(c), and its effective-date clause); § 8 (§ 15E.27, subd. 1(a), January 1, 2028); § 9 (§ 15E.30, subds. 1–3, subpoena, duty to cooperate, contempt, false swearing); § 13 (§ 15E.50, subd. 2, anonymous tip line); § 17, subds. 1, 2, and 7(a)–(d) (appointment by February 1, 2027; fully operational by September 1, 2027; no Human Services, Corrections, Education student-maltreatment, or Children, Youth, and Families positions transferred); signed May 14, 2026. Laws 2026, ch. 121 (S.F. 4476), art. 3, § 33 (Minn. Stat. § 256B.064, subd. 2(a), notice and chapter 14 hearing before recovery or sanction), § 36 (subd. 2c(a)–(d), withhold without advance notice, credible-allegation sources, notice contents, release within ten days), § 37 (subd. 2d(a)–(d), administrative review, 30 days, ten business days, costs borne equally, limited burden, sealed evidence, no discovery), § 38 (subd. 2e, 90-day review), § 39 (subd. 2f, no judicial review), § 40 (subd. 2g, forfeiture), and § 43 (subd. 5(a) and (d), good-faith reporter immunity and confidentiality); signed May 27, 2026. Minn. Stat. § 256B.064, subd. 1c(a) (recovery from one “improperly paid”). Laws 2026, ch. 122 (H.F. 3629), § 1 (rewriting Minn. Stat. § 15.013: deleting the 60-day limit, preponderance standard, 24-hour advance notice, chapter 14 appeal, and July 1, 2027 sunset; adding withholding on a credible allegation, including another agency’s determination, notice within five days, and no chapter 14 appeal); signed May 26, 2026; prior text from Minn. Stat. § 15.013, subds. 2(a), 2(b), 2(d), and 6 (2025 Supp.). Minn. Stat. § 15C.01, subd. 3 (“knowingly”, including deliberate ignorance and reckless disregard), subd. 4 (original source); § 15C.02(a) and (d) (penalty and treble damages; no liability for negligence, inadvertence, or mistake); § 15C.05(a), (d), (e), and (f) (private action, seal, disclosure, public-disclosure bar); § 15C.13 (relator’s share and federal-portion exclusion); § 15C.145(a)–(c) (retaliation relief and three-year limit). 31 U.S.C. § 3730(b)(1), Cornell Legal Information Institute.

This article is general legal information about Minnesota law, not legal advice, and reading it does not create an attorney–client relationship. It describes public reports and statutes, not any particular provider, employer, or investigation, and nothing here predicts how any agency or court would act on any particular set of facts. No outcome is promised or implied.