The No Surprises Act prohibits balance billing for air ambulances from out-of-network providers—meaning your cost share is based on in-network rates, not the full billed amount. This federal law took effect on January 1, 2022, and protects you from surprise bills of $36,000–$40,000 that used to hit patients when about 69% of air ambulance transports nationwide came from out-of-network providers. However, this protection applies only to air ambulances. Ground ambulances remain unprotected under federal law, leaving most Americans vulnerable to surprise ground ambulance bills even after the No Surprises Act provided such crucial coverage for air transport.
Table of Contents
- What the No Surprises Act Covers for Air Ambulances
- The Ground Ambulance Gap—No Federal Protection
- Coverage Denials Override Balance Billing Protection
- Medicare Air Ambulance Coverage and Costs
- What to Do if You Receive an Air Ambulance Bill
- Frequently Asked Questions
What the No Surprises Act Covers for Air Ambulances
When you receive medically necessary air ambulance transport, the No Surprises Act prohibits balance billing from out-of-network providers. Your coinsurance or deductible is calculated using in-network rates, not the provider's full billed charges. This means the out-of-network air ambulance company cannot bill you the difference between what your insurance paid and what they charged.
The law also makes it illegal for air ambulance providers to force you to sign away these protections. Any consent form asking you to waive balance billing safeguards is unlawful. If a provider requests such a waiver, you can refuse without penalty.
The Ground Ambulance Gap—No Federal Protection
The No Surprises Act does not cover ground ambulances. This is one of the law's largest blind spots. Ground ambulance companies operating out-of-network can bill you for the full difference between their charge and what insurance paid, exposing patients to thousands of dollars in surprise bills.
Some states have begun filling this gap. As of February 2026, 22 states have enacted ground ambulance balance billing protections, with five states adding protections in 2025: North Dakota, Utah, New Hampshire, Oregon, and West Virginia. However, these state laws protect only patients whose health plans are regulated by the state—primarily those with individual or small-group plans. Employer-sponsored plans are exempt from state regulation, which means approximately 60% of the insured population remains unprotected by state ground ambulance laws even in states that have passed them.
Coverage Denials Override Balance Billing Protection
The No Surprises Act prevents balance billing when your insurance approves the claim—but it does not guarantee that your insurance will approve it. Your insurer can deny or reduce the claim due to lack of medical necessity, policy exclusions, out-of-network status, or missing documentation. If your insurance denies the claim entirely, you are liable for the full bill regardless of balance billing protections. Contact your insurer before or after air ambulance transport to confirm coverage and ask what documents the crew should provide.
Medicare Air Ambulance Coverage and Costs
Medicare covers air ambulance only when ground transport medically cannot meet your needs due to time, geography, or distance barriers. For rural beneficiaries, medical necessity is automatically met if a physician determines air transport is needed for time or geographic reasons. Coverage is limited to transport to the nearest appropriate facility.
If Medicare approves air ambulance transport, you pay 20% of the Medicare-approved amount after meeting your Part B deductible. This is typically far lower than the billed charges (which median $36,000–$40,000), but your 20% share can still reach several thousand dollars depending on the distance and the approved amount.
What to Do if You Receive an Air Ambulance Bill
If you receive an air ambulance bill after transport:
- Contact your insurance company and provide the air ambulance invoice and billed amount.
- Ask your insurer to confirm whether the claim was approved or denied.
- If the bill exceeds what you would owe in-network, notify the provider that the No Surprises Act applies and request a corrected bill based on in-network rates.
- If your insurer denies the claim, ask for a written denial reason and appeal instructions.
- If the provider continues demanding payment beyond your in-network cost share, file a complaint with your state insurance commissioner's office.
Frequently Asked Questions
If my insurance denies my air ambulance claim, does the No Surprises Act still protect me?
Not fully. If your insurance denies the claim entirely, you are liable for the full bill. However, if insurance approves or partially covers it, balance billing protection caps your cost at the in-network rate.
Can an air ambulance provider force me to waive my balance billing rights?
No. The No Surprises Act prohibits consent forms that waive balance billing protections. You can refuse to sign without penalty.