Medicaid Prepayment Review: When Every Claim Is Checked Before Payment

What prepayment review means

Every Medicaid claim already goes through basic checks before it pays. Under 42 CFR 447.45(f), the state must confirm the rider was eligible and you were authorized to provide the service, check that the services make sense for the rider, catch duplicates, and keep payment within its rates.

Prepayment review goes further. A reviewer, often a contractor, looks at your claims and the records behind them before any money moves, and each claim then pays or denies. States use it in two ways:

• Aimed at one provider. North Carolina (G.S. 108C-7) and Florida (Statutes 409.913) can place a single company on review. North Carolina’s statute reaches ride companies because its managed care NEMT policy (amended January 1, 2025) has plans’ NEMT providers enroll as Medicaid providers in NCTracks.
• Aimed at a whole service. Since late December 2025, Minnesota has held every fee-for-service NEMT claim for review, whoever bills it. See Minnesota’s NEMT prepayment review.

Review also changes the federal payment clock. A clean claim is one the state can process without asking you for more information, so a claim that waits for your records is not clean. Under 42 CFR 447.45(b), neither is a claim under medical necessity review or one from a provider under investigation for fraud or abuse. The federal timelines written for clean claims, such as paying 90 percent of practitioners’ clean claims within 30 days, therefore do not protect those claims. The 12-month outer limit for paying claims does not apply to a provider under investigation either. See how long Medicaid takes to pay for the normal timelines.

What triggers prepayment review

North Carolina’s statute lists these grounds:

• a credible allegation of fraud,
• aberrant billing practices found in an investigation,
• the state’s own data analysis,
• a missed deadline to answer a records request from the state or its contractor, and
• other grounds the state sets in rule.

Florida’s Medicaid agency may run prepayment review “without any suspicion or allegation of fraud, abuse, or neglect,” for up to one year (Florida Statutes 2026, 409.913(3)). Florida also lists prepayment review for a set period among the sanctions it can impose.

Minnesota’s review follows the service on the claim, not the provider. The state picked 14 services it calls high risk, NEMT among them, and its FAQ (updated January 30, 2026) says every fee-for-service claim for them is reviewed, even from providers it has paid before.

Prepayment review vs. payment suspension

The difference is what happens to claims that are in order. Under prepayment review, they still pay, only later. Under a payment suspension, the state holds all or part of your payments, good claims included.

Action	What starts it	What happens to your claims	How it ends
Prepayment review	Data analysis, unusual billing, a fraud allegation, a missed records request, or a review of a whole service	Each claim waits for review, then pays or denies	You meet the state’s exit standard, the review period runs out, or the state ends it
Payment suspension	A credible allegation of fraud (42 CFR 455.23)	Payments are held until the case is resolved	The investigation and any court case end, or the evidence falls short

The two can run at once. Minnesota’s new law, effective January 1, 2027, says enhanced prepayment review does not stop the state from also suspending payments, auditing, recovering money, or referring a case to law enforcement. For how a suspension works, see Medicaid payment suspension.

How long it lasts and how to get off it

North Carolina has the clearest exit rule. You stay on review until you reach three consecutive months with at least an 80 percent clean claims rate. Each of those months, you must submit at least half your average monthly claims from the three months before the review began. A month with no claims counts as zero percent. Session Law 2026-1, approved April 30, 2026, raised the bar from 70 percent for reviews started on or after that date. It also let a review start on the day the notice is mailed, where the state used to wait 20 days, and dropped the old 24-month limit on how long a review could run.

• Deadline to pass. If you do not reach the 80 percent standard within six months, the state may continue the review or impose sanctions, including ending your participation agreement.
• Exclusion. A termination for failing the review bars you from the program in the future. Asking to leave voluntarily after failing has the same result.
• No holding claims. You may not hold claims back to avoid the review. Claims for dates of service during the review can be reviewed even if you send them after it ends.
• No appeal of placement. The decision to place or keep you on review cannot be appealed. Sanctions that follow can be.
• Health plans too. The same 2026 law sets rules for a Medicaid health plan whose state contract, signed or amended since April 30, 2026, lets it run the review. The plan needs no state approval to start one, and it can drop a provider that fails from its network with state approval. The state is deemed to approve if it does not answer within 90 days.

Florida reviews last up to one year. Claims must be decided within 90 days after the agency receives complete documentation, or within 180 days when it has reliable evidence of fraud, misrepresentation, abuse, or neglect.

Minnesota treats review of fee-for-service NEMT as permanent. From January 1, 2027, a new law (Minnesota Statutes 256B.0447) requires 15 days’ written notice before a provider is placed under enhanced review, stating the reason, the start date, and the standards for ending it, unless notice would compromise program integrity or an investigation. From April 1, 2027, the state must review at least 65 percent of all fee-for-service claims.

What reviewers ask for

In North Carolina, the notice must list every supporting document you will need to send for the claims under review, how to send it, and the processing times. Records must be complete, legible, and clearly name your company. For trips that already had prior authorization, the review may not second-guess medical necessity.

Minnesota drops a request letter in your MN-ITS mailbox, filed under miscellaneous received with the file type PREPAYDOCREQUEST, when it needs records for a claim. Its trip record law shows what a reviewer checks a NEMT claim against (Minnesota Statutes 256B.0625, subdivision 17b), from the driver’s dated signature attesting to the miles to odometer readings at pickup and drop-off. Minnesota’s NEMT prepayment review lists every item that law requires.

For the full set of records auditors pull for each trip, see Medicaid audits for NEMT, and for how to build them, NEMT trip documentation.

The cash gap: a five-van example

Say your five vans bill $50,000 a month in Medicaid claims, and the state places you on review under rules like North Carolina’s. You send the listed records with every claim. The reviewer finds 30 percent of claims short: a missing rider signature, no odometer reading, a trip log that does not match the claim.

• The complete 70 percent, $35,000, must be processed within 20 calendar days after the review vendor receives the records.
• The short 30 percent, $15,000, waits longer. The state has up to 15 days after the records were due to tell you what is missing, then another 20 days once you send it. That money can wait up to 35 days past the records’ due date, plus however long you take to answer, and some of it may be denied.
• The exit clock keeps running. If every claim that came back short counts against you, your clean claims rate is about 70 percent. That would have passed North Carolina’s old bar. Since April 30, 2026 it falls short of 80 percent, and six months without three straight months at 80 percent opens the door to termination. The statute does not define a clean claim, so ask the reviewer how it counts one.

Payroll, fuel, and insurance still come due on their usual dates. Each month, about $15,000 of your billing can wait five weeks or more past its records’ due date, and some of it may never pay. Minnesota’s FAQ says the state offers no extra funding while you wait. Build that gap into your plan with the NEMT cash flow guide.

What to do when you are placed on review

1. Read the notice line by line. Mark the reason, the start date, the claims covered, the documentation list, and the standard for ending the review.
2. Send complete records with every claim, legible and showing your company’s name, in the format the notice asks for.
3. Fix the gaps at the source. If signatures or odometer readings are what fail, retrain drivers this week and check every trip log before it is billed.
4. Keep billing at your normal pace. Do not hold claims back. In North Carolina, low volume or an empty month counts against you.
5. Track your own clean claims rate each month, so you know where you stand before the state tells you.
6. Bill other services on separate claims where the state suggests it. Minnesota says a claim that mixes a high-risk service with other services suspends in full.
7. Keep serving your riders. Minnesota can disenroll a provider that stops offering services.
8. Line up cash early. Talk to your lender before payroll is at risk, and pay payroll and taxes first.
9. Get a health care attorney if sanctions follow. In North Carolina, once you file an appeal, you have 45 days to submit the records that answer the findings, and records sent later are not considered. To overturn a denied claim there, you must prove every required record was sent with the claim, which is why step 2 matters.