https://www.cms.gov/files/document/nsa-keyprotections.pdf
[The No Surprises Act, effective since January 1, 2022, is a federal law
that protects consumers from "balance billing" for certain services.
This means you generally cannot be charged the difference
between the out-of-network rate and the in-network rate for emergency care,
certain services at in-network facilities,
and air ambulance services from out-of-network providers.
Instead, you are only responsible for your normal in-network costs,
and the provider and your health plan must resolve the remaining payment.]