Who audits NEMT providers
NEMT providers can be reviewed by several parties: state Medicaid programs and their program-integrity units, the brokers you contract with, managed care organizations, and other payers. Some reviews are routine and scheduled; others are triggered by complaints, billing patterns, or a rider incident.
Who audits you, how often, and under what authority varies significantly by state and by contract. Read the audit and records provisions in each broker agreement and provider enrollment document you hold, and confirm anything unclear with the program or broker directly. This article is general education, not legal advice — for specific obligations, consult your state program, your broker, and your own counsel.
What auditors typically request
Most reviews center on one question: do your records substantiate the trips you billed? Auditors commonly sample a set of claims and ask for the documentation behind each one, along with the driver and vehicle files connected to those trips.
- Trip records: dates, pickup and drop-off addresses, timestamps, mileage, rider identity, level of service, signatures where required
- Driver files: licenses, background check results, drug and alcohol testing records where applicable, required training certificates
- Vehicle records: registration, insurance, inspection and maintenance history, wheelchair lift and securement equipment checks where applicable
- Business records: authorizations, broker trip files, dispatch logs, and sometimes GPS data supporting billed mileage
Organizing records year-round, not audit week
The providers who struggle in audits are usually not the ones doing anything wrong — they are the ones whose records live in filing cabinets, driver glove boxes, and old spreadsheets. If assembling the file for one billed trip takes an hour, a 100-claim sample is a crisis.
The working standard is that every billed trip should be reconstructable in minutes: who drove, in what vehicle, with what timestamps and mileage, under what authorization. Software that captures trip data at the point of service and links it to driver and vehicle records — as Axen does with its driver app and compliance tracking — keeps that standard achievable without a dedicated records clerk.
- Store driver and vehicle credentials centrally with expiration dates, not in paper folders
- Capture timestamps and mileage electronically at pickup and drop-off
- Retain records for at least the period your state and contracts require — retention rules vary, so confirm yours
Common audit findings and what causes them
Most findings are documentation failures rather than fraud. Knowing the usual suspects lets you self-audit for them before anyone else does.
- Missing or implausible timestamps — trips with no pickup/drop-off times, or times that conflict with other trips by the same driver
- Mileage discrepancies — billed mileage that does not match map distance or GPS data
- Lapsed credentials — a trip performed while a driver's license, background check, or training had expired, or a vehicle's inspection had lapsed
- Trips billed without a valid authorization, often leftover occurrences from an expired standing order
- Missing signatures or attestations where the contract requires them
Run your own audit before someone else does
Once a quarter, pull a random sample of billed trips and review them exactly as an auditor would: is the full trip record present, do timestamps and mileage hold up, were the driver and vehicle credentialed on the date of service, and does an authorization cover the trip? Ten to twenty trips is enough to reveal systemic gaps.
Treat every miss as a process problem, not a filing chore. If three trips are missing drop-off times, the fix is the driver workflow, not backfilling three records.
Responding to a records request
When a request arrives, read it carefully: which claims, which record types, what format, and what deadline. Respond on time with organized, complete files that map clearly to each sampled claim — a tidy, indexed response sets a very different tone than a box of loose paper.
Designate one person to own the response, keep a copy of everything you submit, and communicate early if you need clarification or more time. If the review is program-integrity related or the potential exposure is significant, involve counsel before you respond rather than after findings arrive.
Corrective action plans
If a review produces findings, you will often be asked for a corrective action plan: what went wrong, what you changed, and how you will verify the change holds. Effective plans name specific process changes — a new credential-expiration alert, a mandatory drop-off timestamp — with owners and dates, then show follow-up evidence.
A finding handled with a credible plan and clean follow-up is a recoverable event. Repeat findings on the same issue are what escalate into payment suspensions or contract trouble, so build the verification step into your plan, not just the fix.
Related resources
Frequently asked questions
How far back can an NEMT audit look?
Lookback and record-retention periods vary by state program and by contract. Check your state Medicaid provider requirements and each broker agreement, and keep records for at least the longest period that applies to you.
What triggers an NEMT compliance audit?
Some reviews are routine or random. Others are triggered by billing patterns, rider or facility complaints, incidents, or broker quality monitoring. You generally cannot control triggers, so the practical strategy is being audit-ready continuously.
What is the most common NEMT audit finding?
Documentation gaps dominate: missing timestamps or signatures, mileage that does not reconcile, and trips performed while a driver or vehicle credential had lapsed. Most are preventable with electronic point-of-service capture and credential expiration tracking.
Should I involve a lawyer in an audit response?
For routine documentation requests many providers respond directly, but if the review involves program integrity, potential overpayment recovery, or anything you are unsure about, consulting counsel before responding is prudent. This article is not legal advice.