Ground Ambulance Surprise Bill: Why Federal Protections Differ and How to Dispute It

Information checked: 2026-09-10 · Maintenance label: State/local variable

The No Surprises Act ended most surprise medical bills. It did not end this one.

CMS states it directly: ground ambulance services are generally not covered by the billing protections in the No Surprises Act, and ground ambulance providers are allowed to charge out-of-network rates.

This guide covers exactly where the federal line falls, the ten states CMS lists as having their own protections, and what to do with a bill that is not covered by either.

Key takeaway

Federal surprise-billing protections cover emergency room care, non-emergency care from out-of-network providers at in-network facilities, and air ambulance. Ground ambulance is generally excluded. CMS lists ten states with their own ground ambulance protections: Colorado, Delaware, Florida, Illinois, Maine, Maryland, New York, Ohio, Vermont and West Virginia. Outside those, the route is negotiation, a payment plan, and your state's consumer assistance programme.

Table of contents

• What the federal law does and does not cover
• The ten states CMS names
• What to do with the bill
• If you are uninsured or paying cash
• Why the gap exists
• Frequently asked questions
• Summary

Related guides

• Medicaid Renewal 2026: Documents, Deadlines, and What to Do After a Denial
• Car Insurance Renewal Price Increase: Discounts, Coverage Checks, and Switching Steps

What the federal law does and does not cover

The No Surprises Act protects people with private insurance from unexpected out-of-network bills in three situations:

• Emergency room visits
• Non-emergency care at in-network hospitals, hospital outpatient departments and ambulatory surgical centres
• Air ambulance services

Ground ambulance is the gap. CMS's wording is that ground ambulance services generally are not covered by the Act's billing protections, and that these providers may charge out-of-network rates.

The protections also do not apply to vision-only or dental-only plans, short-term limited duration plans, health care sharing ministry plans, or fixed and hospital indemnity plans. If your coverage is one of those, the federal route is closed regardless of the service.

Know which protections applyCMS, Know your rights with insurance ›What the No Surprises Act does and does not cover, and where ground ambulance sits. No Surprises Help Desk: 1-800-985-3059.

The ten states CMS names

CMS's own action plan for a ground ambulance bill lists ten states where surprise billing protections apply to ground ambulance:

• Colorado, Delaware, Florida, Illinois, Maine, Maryland, New York, Ohio, Vermont, West Virginia

If your transport happened in one of those states, CMS's instruction is to call the ground ambulance provider and tell them you are aware of surprise billing rules.

State law is administered at state level and changes, so confirm the current rule with your own state insurance department before relying on it. A protection that exists in a state may also be limited to particular plan types, and self-funded employer plans are frequently outside state insurance regulation.

What to do with the bill

1. Do not pay it immediately. Paying is treated as accepting the amount, and it removes most of your leverage.
2. Check the state. If the transport was in one of the ten states above, say so when you call the provider.
3. Call the provider or its billing department. CMS notes that providers can sometimes lower the price and may offer payment plans.
4. Ask for a payment plan if the amount is not going to move.
5. Get help. Consumer advocates and patient advocates work on exactly this, and your state has a Consumer Assistance Programme.

Keep a record of every call: the date, the name of the person, and what was agreed. A verbal reduction that nobody wrote down tends to disappear.

The No Surprises Help Desk is 1-800-985-3059, available in English, Spanish and more than 350 languages.

If you are uninsured or paying cash

A different federal protection may apply. Providers usually must give an uninsured or self-pay patient a good faith estimate of what care will cost, and you may be able to dispute a bill that is at least $400 more than the estimate you were given.

An emergency ambulance is not a service you shop for in advance, so an estimate often will not exist. Where you did receive one — for a scheduled transport, for example — the $400 threshold is worth checking against the bill.

Why the gap exists

Ground ambulance was left out of the federal protections when the Act was written, and Congress instead created a federal advisory committee on ground ambulance and patient billing to examine the problem. That is why the answer today depends on your state rather than on federal law.

For a consumer this is mainly a reason to check the state rule first and to treat the bill as negotiable rather than final.

Frequently asked questions

Does the No Surprises Act cover ambulance bills?

Air ambulance, yes. Ground ambulance is generally not covered, and CMS states those providers are allowed to charge out-of-network rates.

Which states protect against ground ambulance surprise bills?

CMS's action plan lists Colorado, Delaware, Florida, Illinois, Maine, Maryland, New York, Ohio, Vermont and West Virginia. Confirm the current rule with your state insurance department.

What should I do first?

Do not pay. Check whether the transport was in a state with protections, then call the provider's billing department to ask for a reduction or a payment plan.

Who can I call for help?

The No Surprises Help Desk on 1-800-985-3059, and your state's Consumer Assistance Programme.

I have no insurance. Is there any protection?

You are usually entitled to a good faith estimate before care, and may be able to dispute a bill that is at least $400 more than that estimate.

Summary

Air ambulance is protected. Ground ambulance generally is not, and that single distinction explains most of these bills.

Check whether your state is one of the ten CMS names, then negotiate rather than pay. Keep a written record, and use the Help Desk and your state consumer assistance programme.