How to bill Medicaid for NEMT: the six steps from enrollment to payment

First, find out who pays in your state

Before you bill anything, find out who pays for NEMT where you drive. Federal rules require every state to ensure transportation to medical care under 42 CFR 431.53, but states choose how. Under 42 CFR 440.170(a)(4), a state may hand the program to a broker, and many also fold NEMT into their managed care plans. The payer model decides where your claim goes, what rate you get, and whose rules you follow.

Many states mix these. Colorado’s broker, Medidrive since July 1, 2026, covers nine counties, including Denver and Boulder; providers outside those counties submit their own claims through the state portal. Texas pays fee-for-service trips through its Medical Transportation Program, while managed care members ride through their plans. Our state NEMT guides list the payers state by state, and NEMT broker guides cover each broker’s rules.

Step 1: Enroll and get the right identifiers

You cannot bill a payer you are not enrolled with. For fee-for-service, that means enrolling with the state Medicaid agency. For a broker or plan, it means passing their credentialing and signing a contract. Our guide on becoming a Medicaid transportation provider covers enrollment in detail.

Three identifiers come up on every claim:

• NPI. Federal rules at 42 CFR 431.107(b)(5) require providers to give the state their NPI if they are eligible for one and to include it on all Medicaid claims. See how to get an NPI number.
• Taxonomy code. The NUCC list includes 343900000X (Non-emergency Medical Transport, van), 344600000X (Taxi), 347C00000X (Private Vehicle), and 342000000X (Transportation Network Company). Your enrollment and your claims should use the same one.
• State or plan provider ID. Some programs pay against their own number. Nebraska’s fee-for-service instructions ask for the 11-digit Medicaid provider number in item 33a. Texas issues an atypical provider identifier to individual transportation participants.

Step 2: Get authorization before the trip

Almost every NEMT trip needs an authorization, and the payer checks it on the claim. New York’s policy manual says every non-emergency mode must be prior authorized, and that “approved prior authorization numbers are necessary to submit a valid claim.” Colorado’s manual says transportation provided without authorization “will not be reimbursed or paid.” Texas denies Medical Transportation Program claims submitted without proper prior authorization.

Authorization is not the same as payment. New York’s manual is blunt: “Prior authorization does not guarantee payment.” Eligibility on the date of service, the right service level, and complete records still decide whether you get paid. North Dakota puts the eligibility check on the provider: you must verify a member’s eligibility before providing the ride, through its portal or phone line.

Step 3: Run the trip and document every leg

Your trip record is your proof of service. Payers can take back money for any trip you cannot prove. Federal rules require every Medicaid provider to keep records that disclose the extent of its services and to hand them over on request.

States spell out the details. North Dakota’s January 2026 manual requires the member’s name and Medicaid ID, pickup and drop-off addresses with times, the trip date, odometer readings, and mileage, kept for seven years. New York requires the driver’s printed name, signature, and license number, the vehicle plate, and a driver attestation for every leg, kept for six years. Our guide to NEMT documentation requirements compares the state lists.

Step 4: Code the claim

A NEMT claim line pairs a HCPCS code with units and, often, modifiers. Most trips take a base code matched to the rider’s level of service plus a mileage code: A0130 and S0209 for a wheelchair van in Colorado, for example. The NEMT billing codes guide lists every code with its official description.

Five other fields trip up new billers:

• Diagnosis code. Programs usually specify a stand-in code. Colorado uses R68.89 on every NEMT claim, Indiana uses R69 when the actual diagnosis is not known, and Texas’s program recommends Z753.
• Place of service. Colorado and Nebraska use 41 (land transportation). The Texas Medical Transportation Program handbook lists 09 for paper claims and 99 for claims entered in TexMedConnect.
• Modifiers. Many programs want origin and destination modifiers, such as RP for a residence-to-physician trip, and a modifier on a second trip the same day: 76 in Colorado, XE in Indiana.
• Units. Mileage is billed in whole miles in Colorado and Indiana. Indiana rounds half a mile or more up to the next mile.
• Charge. Bill your usual and customary charge. North Dakota says you cannot charge Medicaid more than you charge your non-Medicaid riders, and it pays the lesser of your charge or its rate. Colorado has the same rule.

Step 5: Submit the claim before the deadline

Claims go in electronically as an 837P or on paper as a CMS-1500. Many states offer a web portal for keying claims, including Colorado, North Dakota, and Texas, and brokers run their own portals. Our guides to the 837P and the CMS-1500 walk through the fields that matter for transportation.

Deadlines vary more than most new providers expect:

A claim that misses the deadline denies for timely filing. Build your billing routine around the shortest deadline you face, and bill daily if your broker asks.

Step 6: Post the payment and work the denials

Every payment comes with a statement that shows what was paid, what was cut, and why. From a state or plan, that is a remittance advice, sent electronically as an 835 file or on paper. Brokers send their own payment statements. Match each paid line to its trip, then work every denial or short payment while the deadline to correct it is still open.

Some brokers pay on a fixed schedule. SafeRide Health’s provider overview says it pays within 30 days of a properly completed ride. Brokers also audit. CareOregon verifies 5 percent of NEMT trips before and after the ride and can recover overpayments by deducting them from a future invoice. See reading NEMT remittance advice and NEMT claim denials for the details.

What changes when a broker pays you

Billing a broker follows the same six steps, but the contract replaces the state manual as your rulebook. Four differences matter most:

• The rate comes from your contract. The contract sets the base and mileage rates, not a state fee schedule. CareOregon’s manual says negotiated rates are approved only if the brokerage authorized the rate before the trip. CMS expects states to make sure brokers do not pay so little that local providers refuse to take part.
• Completion is confirmed in the broker’s system. New York calls this trip attestation, and it is required before a provider receives the authorization number needed to bill.
• Mileage is judged against the direct route. CareOregon lets providers bill only the most cost-effective and reasonably direct route from origin to destination. Colorado pays the shortest trip length shown by a mapping tool or GPS.
• Audits reach back into paid trips. CareOregon’s manual lets a brokerage that finds an overpayment during an audit recover it from a future invoice.

Read the billing section of every broker contract before your first trip. The NEMT broker rates guide explains how those contract rates are usually structured.

Where software helps

Billing breaks down when trip facts live in three places. In HealthRide, each trip leg keeps its service level, scheduled and actual times, signatures, and GPS-recorded miles, and the trip log exports as a spreadsheet or PDF when a payer asks for proof. Invoices for facilities and other payers build from completed trips. Every payment, whether a card, a check, or an ACH deposit, is recorded in one ledger against its invoice.