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Surprise Medical Bills: What the No Surprises Act Covers — and the Ambulance Gap

A toy ambulance on a turquoise and pink background, with a sticky note reading “$2,700?”.
Photo by Joshua Coleman on Unsplash

Nobody who dials 911 gets to pick the ambulance. A dispatcher sends the closest crew, and whether it has a contract with your health plan never comes up. Since January 1, 2022, federal law has shielded most of the rest of an emergency from surprise bills. Ground ambulances were left out, and as of September 2026 that hasn't changed. From there, the bill comes down to two questions, and neither one is about the ride.

See the 7 steps for an ambulance bill

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By Margaret Linwood · Updated Sep 29, 2026 · Reviewed against CMS No Surprises Act guidance, Medicare.gov, Peterson-KFF Health System Tracker, Georgetown CHIR, Washington Insurance Commissioner

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The gap isn't rare. Peterson-KFF researchers went through claims from large employer plans in 2018. About half of the emergency ground ambulance rides, 51%, carried an out-of-network charge that could turn into a surprise bill.

Often the bill doesn't come from a company at all. In that data, fire departments and other government agencies ran 62% of emergency ground rides, and a public agency often has no contract with any private insurer. An advisory committee recommended banning these bills back in 2024. Congress hasn't turned that into law. Some states have stepped in, but a state law only helps if your plan answers to the state.

See the form that gives up your protection

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What to check in your coverage before the next ride

You can't pick the ambulance. You do pick the plan, and a few details in it decide how much protection you have later.

  1. Whether your plan counts. Coverage through work and plans you buy yourself, marketplace plans included, fall under the federal law. Short-term plans, dental-only and vision-only plans and health care sharing ministries don't.
  2. The ambulance line in the summary of benefits. A flat copay is easier to budget for than coinsurance after the deductible.
  3. Any consent form before planned care. If an out-of-network provider at an in-network hospital asks for your signature, signing means agreeing to out-of-network rates for that provider. The form can't be used in an emergency, or for anesthesiology, radiology or pathology.
  4. Medicare's non-emergency rule. If the ambulance company thinks Medicare may not pay for a non-emergency trip, it has to hand you an Advance Beneficiary Notice of Noncoverage first. Signing it means you may be billed for the whole ride.
  5. The enrollment calendar. Marketplace open enrollment starts November 1. Medicare's fall period runs October 15 through December 7, and Medicare Advantage ambulance copays differ from plan to plan.

For a bill that's already arrived, the article lays out seven steps, in order.

See which medical bills are protected

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