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What is the No Surprises Act?

Updated Sep 3, 20261 min readAnswer
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Short answer

The federal law in force since January 2022 that made the worst billing ambushes illegal: emergency care bills at in-network rates even at out-of-network ERs, out-of-network clinicians at in-network hospitals cannot balance bill you, and air ambulances are shielded.

For the uninsured and self-pay, it created the good faith estimate: a written cost estimate when you schedule 3+ business days ahead or simply ask, with a federal dispute process if the final bill runs $400 or more over it. CMS runs the complaint line (7 days a week, via its medical-bill-rights page) for violations. Not covered: ground ambulances and care you knowingly book out-of-network. Pymander is a free AI doctor, 24/7 by text, and can help you check whether a bill breaks the Act.

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What to do

1Emergency bill at out-of-network rates? Dispute it:that is banned.
2Uninsured? Demand the good faith estimate:it creates dispute rights.
3$400+ over the estimate? Federal dispute process:keep the estimate.
4Call the CMS complaint line:real humans, 7 days a week.

Common questions

What is the No Surprises Act?

The No Surprises Act is the federal law, in effect since January 2022, that made the worst billing ambushes illegal. Its core protections: emergency care can only be billed at in-network cost-sharing rates - even at an out-of-network ER, and even without prior authorization; out-of-network providers working at in-network facilities (the anesthesiologist, radiologist, or assistant surgeon you never chose) cannot balance bill you beyond in-network rates; and air ambulances get the same shield. For people without insurance or paying cash, it created the good faith estimate right: providers must give you a written cost estimate when you schedule care at least 3 business days ahead or ask for one, and if the final bill runs $400 or more over the estimate, you can dispute it through a federal process. The enforcement handle: CMS runs a complaint line for bills that break these rules - the agency's medical-bill-rights page has the phone support, available 7 days a week. What it does not cover: ground ambulances (the famous gap) and care you knowingly schedule out-of-network. Pymander is a free AI doctor, 24/7 by text, that can help you check whether a bill breaks the Act.

About this page. Written and maintained by the Pymander Health team. Last updated September 3, 2026.

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