NEMT Billing Service in 2027: Costs, Contracts, and What to Check Before You Outsource

A billing service can take hours of claim work off your desk each week. It cannot take the responsibility. Every claim still goes out under your NPI and provider number, the money is paid to your company, and your broker contracts still apply. This guide covers what a service does, how it charges, the rules that limit its fee, and what to put in writing before it touches a single trip.

What a NEMT billing service does, and what stays your job

A billing service turns finished trips into claims, sends them to each payer, and follows each one until it is paid or closed. The payer may be your state Medicaid program, a Medicaid health plan, or a broker. Only the tools change: a state claim system or a clearinghouse for 837P claims, or the broker’s own portal.

HIPAA treats this work as a business associate function. Its definition of a business associate names claims processing and billing, and its definition of a health care clearinghouse names billing services that convert claims into standard format (45 CFR 160.103).

Some duties never move to the service. Medi-Cal puts it plainly: providers are responsible for all claims submitted with their provider number, no matter who completed them. New York requires a service bureau to let the provider review claims before they are sent, so the provider can correct inaccurate claims and delete improper ones (18 NYCRR 504.9(b)). HHS OIG’s 1998 guidance for billing companies notes that they rarely receive payments for their clients, so repaying an overpayment is generally the provider’s responsibility.

Task	A service can do it	What stays with you
Check eligibility before rides	Yes, where the payer lets agents check. New York requires them to enroll.	Booking only riders who are eligible that day
Get prior authorizations	Where the payer allows it. New York requires enrollment for this too.	Running only authorized trips
Enter and send claims	Yes	A complete trip log for every leg
Fix rejected and denied claims	Yes	Sending missing records fast
File appeals	If the contract includes it	Confirming the facts in each appeal
Post payments and match deposits	Yes	Giving it your remittances, or its own access to them
Follow up on unpaid claims	Yes	Deciding what gets written off
Handle overpayments	It should flag them to you	Returning them within 60 days after you identify them

The 60-day deadline comes from federal law, and money kept past it becomes an obligation under the False Claims Act (42 U.S.C. 1320a-7k(d)).

Do you need a billing service?

It depends on who pays you and how far behind you are. Broker claims are often short records tied to the broker’s trip ID. MTM Health’s Virginia handbook, approved August 10, 2026, has providers submit an electronic trip log with the trip ID, scheduled and actual pickup times, departure and arrival times, and the member’s signature. That work is mostly data entry and matching, which an owner or office manager can keep up with.

State fee-for-service billing can also be done in-house at low volume. New York offers ePACES, a web tool that lets providers send claims, eligibility checks, and claim status requests to New York Medicaid free of charge.

Your situation	Often the better fit
All trips from one broker, billed in its portal	Keep billing in-house with a weekly routine
A few state fee-for-service claims a week	The state’s free claim tool, such as ePACES in New York
Several payers: the state, health plans, brokers, and facilities	A billing service, or a trained in-house biller
Months of unworked denials or claims close to their filing limits	A service for a cleanup project, then decide

You are falling behind when trips sit unbilled for more than a week, denials pile up with no action, or you cannot say what each payer owes you. Deadlines are short. New York Medicaid wants transportation claims within 90 days of the date of service (billing guidelines, August 5, 2026). WellTrans’s Indiana agreement, revised October 16, 2025, asks for invoices within 60 days and disallows any invoice more than 90 days after the ride. The accounts receivable guide has a weekly routine that works with or without a service.

How NEMT billing services charge

Services price their work in three main ways. Ask whether a quote also adds a setup fee, a monthly minimum, or a separate fee for appeals and old claims.

Pricing model	How the fee is figured	What to ask
Percentage of collections	A share of every dollar collected	Will the service receive Medicaid payments in your name? Then federal rules bar a percentage.
Per claim	A set price for each claim sent	What counts as a claim, and are resubmissions and denials charged again?
Flat monthly rate	One price for a set volume	What happens above the volume cap, and what work is excluded?

Ask what counts as a claim. Federal Medicaid rules use the word for a whole bill, a single line of service, or all services for one rider on a bill (42 CFR 447.45(b)). A round trip billed as two legs, each with a base line and a mileage line, could be one, two, or four claims depending on the contract.

Compare quotes on your own numbers

Here is how three example quotes compare for a company that runs 400 trip legs a month and collects $18,000. The prices are made up to show the math, not typical rates.

Example quote	Monthly fee	If collections rise to $27,000 in a cleanup month
7 percent of collections	$1,260	$1,890
$3.00 per claim, 400 claims	$1,200	$1,200, plus any resubmissions charged again
$1,100 flat, up to 500 claims	$1,100	$1,100

Fee as a share of revenue = monthly fee ÷ monthly collections

In this example the three quotes cost between 6.1 and 7 percent of collections. Put in your own trip count and collections, and check the NEMT payer mix first. Medicaid payments a service receives in your name cannot go on the percentage line, and some states go further.

The Medicaid rule on percentage fees

Federal law generally bars a state from paying Medicaid money to anyone but the provider or the member, under an assignment, power of attorney, or anything similar (Social Security Act section 1902(a)(32)). The rule that carries it out, 42 CFR 447.10, makes an exception for a billing service or accounting firm that sends statements and receives payments in the provider’s name. Its pay for that work must be:

1. Related to the cost of processing the billing
2. Not related, on a percentage or other basis, to the amount billed or collected
3. Not dependent on collecting the payment

States repeat the rule in their own manuals and regulations:

• New York allows payment to a service bureau, billing service, or accounting firm only on those terms (18 NYCRR 504.9).
• South Carolina will not pay an agent whose pay is tied to the amount billed or collected, and it will not release member information to that agent either. It says it looks at how the agent is actually paid, not at what the provider calls the agent, and misleading information about agent pay can bring sanctions (manual dated July 1, 2026).
• New Mexico requires a business agent’s pay to track the cost of processing claims, not a percentage of the amount billed or collected (8.302.2.10 NMAC).

The OIG adds a reason to care beyond the rule. Its guidance for billing companies says it has a longstanding concern that percentage billing arrangements may increase the risk of upcoding and similar abusive billing.

To stay safe, have every Medicaid deposit go straight to your own bank account in your company’s name. Use a per-claim or flat fee for Medicaid work. If a service proposes a percentage on any Medicaid claim, ask your state Medicaid agency or a health care attorney before you sign.

Broker claims follow the broker’s contract

Section 447.10 governs payments from the state Medicaid program. When a broker pays you, its contract sets the rules, and some contracts limit outside help. MTM Health’s standard provider agreement, in the January 1, 2023 version Pennsylvania posts, says:

• You may not subcontract any services without MTM’s express written consent (section 12.A).
• You may not disclose member information to anyone without MTM’s written consent, except for internal use needed to perform the agreement (section 21.B).
• You must give MTM 30 calendar days’ written notice before you assign your right to payment to a third party (section 12.C).

Before a service logs into any broker portal for you, get the broker’s written approval. See how to bill NEMT brokers for how each broker’s claims work.

A billing service is not a factor

Some companies offer to advance cash against your unpaid claims. That is factoring, not billing. Federal rules bar Medicaid from paying for a service to or through a factor, directly or by power of attorney (42 CFR 447.10(h)). The rule’s own definition of a factor includes a collection agency or service bureau that advances money for receivables in exchange for a fee or a share of them. See NEMT factoring before you sign anything like it.

Billing agent rules in your state

Federal law requires any agent, clearinghouse, or other alternate payee that submits Medicaid claims for a provider to register with the state and with HHS, in a form HHS specifies (Social Security Act section 1902(a)(79)). States carry this out in different ways. These rules cover claims you send to the state Medicaid program. Where a broker or health plan pays your trips, its contract sets the terms.

State	What the rule requires	Source
New York	Anyone who submits claims, checks eligibility, or gets service authorizations for a provider must enroll with Medicaid, unless employed by the provider. Service bureaus sign an electronic billing agreement and must let providers review claims before they are sent.	18 NYCRR 504.9
California	A billing agent may not submit Medi-Cal claims for a provider unless it is registered with DHCS. The provider’s own employees and relatives billing only for that provider are not billing agents.	Welfare and Institutions Code 14040.1
South Carolina	If a billing agent will read your electronic remittances, both you and the agent need a trading partner agreement on file. Yours names the agent, and the agent’s names you and your Medicaid number.	Provider manual, July 1, 2026
New Mexico	Medicaid pays a billing service only in the provider’s name and only when its pay is not a percentage of claims or collections	8.302.2.10 NMAC

Ask your state Medicaid agency, or check your state guide, for the enrollment or registration a service needs. Make it the service’s job, in the contract, to hold it and keep it current.

One more federal rule matters if a service works from abroad. A state may not make Medicaid payments to any financial institution or entity located outside the United States (Social Security Act section 1902(a)(80)).

What the billing service contract should say

The OIG’s 1998 guidance for billing companies recommends that the written contract list the functions that are shared and those that belong only to the provider or only to the billing company. Use this table as your checklist.

Contract term	What to get in writing
Scope	Every payer and task covered: eligibility, claims, rejections, denials, appeals, posting, follow-up, reports
Fee	The model, the rate, what counts as a claim, and no percentage on Medicaid work
Money flow	All payments go to your bank account in your company’s name. The service never receives, endorses, or holds your checks.
Your review	You can review claims before they are sent, as New York requires
Turnaround	Claims sent within a set number of days after trip records arrive, and denials worked within a set number of days
Missed deadlines	Who pays when a claim is lost to a filing limit through the service’s delay
Access	Separate user IDs for the service’s staff, with you as the account owner. No shared passwords.
Enrollment	The service holds any state enrollment or registration it needs and keeps it current
Screening	The service checks its company, owners, and staff against the OIG exclusion list every month and tells you of any match
Overpayments	The service tells you within a set number of days of spotting one, so you can meet the 60-day deadline
Audits	The service helps with any state, health plan, or broker audit and hands over records on request
Subcontractors and location	Every subcontractor named, each bound by the same privacy terms, and where your data is stored and worked on
Records	You own all claim data, can export it at any time, and get it all back at the end
Exit	Notice period, who finishes open claims, the final reports, and when access ends

Screening matters because billing is covered by exclusion. Medicaid pays nothing for items or services furnished by an excluded person (42 CFR 1001.1901). OIG’s May 8, 2013 bulletin says an excluded person may not provide administrative services such as billing and accounting for a provider paid by federal health care programs. It also says monthly screening of employees and contractors best limits your risk, because the list is updated monthly. See the OIG exclusion list.

Set the records terms around your longest obligation. MTM Health’s standard agreement requires records for 10 years. South Carolina Medicaid requires fiscal records for at least four years after the last payment.

What the business associate agreement must include

Sign a business associate agreement before the service sees any rider information. You need one in either of two cases:

• You are a covered entity. The billing service is your business associate, and HIPAA requires a written contract with it (45 CFR 164.502(e)).
• You are a broker’s business associate. HIPAA treats the service as your subcontractor, and you must get the same written assurances from it before you share member data.

HIPAA for NEMT providers explains which case fits your company. Under 45 CFR 164.504(e) and 164.314(a), the agreement must require the service to:

1. Use and disclose rider information only as the contract allows or the law requires
2. Protect it with appropriate safeguards, and follow the HIPAA Security Rule for electronic information
3. Report any use or disclosure the contract does not allow, and any security incident, including breaches
4. Bind every subcontractor to the same restrictions in writing
5. Help you give riders access to their records, make amendments, and account for disclosures
6. Open its books and records on this information to HHS when asked
7. Return or destroy all rider information when the contract ends, or keep protecting whatever it cannot return

It must also let you end the contract if the service violates a material term. For breaches, the rule requires a business associate to notify you without unreasonable delay and no later than 60 calendar days after discovery (45 CFR 164.410). You can ask for a shorter deadline in the agreement, so you hear about a breach sooner.

HHS posts sample provisions you can start from. See business associate agreement and the business associate agreement checklist.

The reports to demand

A good service shows you where every trip stands without being asked. Put these reports and their schedule in the contract.

Report	What it shows	How often
Unbilled trips	Every completed trip leg with no claim yet, oldest first	Weekly
Front-end rejections	Claims the payer refused to accept for processing	Weekly
Denials by reason code	Each denial with its code, the fix, and a due date	Weekly
Aging by payer	Unpaid claims grouped by age and payer, with each claim’s filing deadline	Weekly
Payments posted	Each payment matched to its trips and to the bank deposit	With every remittance
Adjustments and write-offs	Every amount written off, with the reason and your approval	Monthly
Recoupments and offsets	Money taken back from your payments and what balance is left	Monthly
Overpayments and credit balances	Anything paid twice or paid too much	Weekly

Rejections need their own report because they never reach the remittance. New York says rejected electronic claims appear only on its front-end report, called a 277CA, not on the remittance, and the provider must fix and resend them in a timely manner. Denials carry X12 reason codes. Code 29 means the time limit for filing has expired, and unless you can prove you filed on time, that trip’s money is gone. See NEMT claim denials and how to read a remittance advice.

Ask for a few numbers every month, by payer:

Billing lag = average days from the ride to the claim being sent

First-pass paid rate = claims paid on the first try ÷ claims sent

Days to pay = average days from sending a claim to receiving payment

A rising billing lag or falling first-pass rate is the early warning. Compare days to pay with each payer’s own schedule. MTM Health’s standard agreement, in the January 1, 2023 version, pays uncontested invoices within 30 days of online submission. In Indiana, fee-for-service claims sent clean to Verida by Wednesday are paid within 14 days (state module, August 19, 2025).

How to choose a NEMT billing service, step by step

1. List your payers and volume. Count trip legs and claims per month for each payer, and your collections.
2. Ask about NEMT work with your payers. A service should know your state’s transportation codes and each broker’s portal. See NEMT billing codes.
3. Check exclusions. Search the company and its owners on the OIG list and SAM.gov before you share anything.
4. Confirm enrollment. Ask how the service is enrolled or registered with your state Medicaid program, and get it in writing.
5. Get quotes on the same terms. Ask each service to price your actual volume and to define a claim.
6. Ask your brokers. Get written consent from any broker whose claims the service will handle.
7. Ask for sample reports. Look for the reports in the table above, by payer and by trip.
8. Sign the contract and the business associate agreement together. Then set up separate logins.
9. Start with one payer for a month. Check every claim and payment yourself before you add the rest.

If you switch or end a billing service

Plan the handoff before you give notice. Claims in progress can fall through the gap between two services.

1. Give notice in writing under the contract and set a last day for new claims.
2. Get a full export. Ask for every open claim, denial, appeal, and payment record, with its status and deadline.
3. Collect every document the service holds, or get written confirmation it was destroyed, as the business associate agreement requires.
4. Close its access to every state, health plan, and broker portal on the last day.
5. Update the payers. Change or end any billing agent enrollment, trading partner agreement, or remittance setup that names the service.
6. Work the open list yourself until the new biller is running, oldest filing deadlines first.