Surprise billing
ER bill from out-of-network provider — federal protection at any hospital
If you walked into an emergency department, federal law treats the visit as in-network for cost-sharing purposes — even if the hospital is out-of-network for your insurance. The No Surprises Act removed the choice patients used to face: pay an out-of-network rate or skip the ER.
What this looks like in practice
The No Surprises Act prohibits out-of-network balance billing for emergency services regardless of the hospital's network status. The patient's cost-sharing is calculated as if the services were in-network. The hospital and physicians can't bill the patient more than the in-network cost-share. They must accept the in-network rate as full payment (subject to the federal IDR process between provider and insurer).
This applies to: emergency department services, screening exams under EMTALA, post-stabilization care until the patient can safely transfer (with limited exceptions). It does not apply to scheduled, non-emergency services or to ground-ambulance services (Congress carved those out).
How to spot it on a bill
- 01.Bill from an emergency department visit listed as 'out of network.'
- 02.Cost-share calculated against the out-of-network deductible and coinsurance.
- 03.Balance bill from individual ER physicians, radiologists, or specialists who saw you in the ED.
What to write — ready-to-paste language
Replace the bracketed fields with your specific details. Send by certified mail with return receipt, or via the hospital’s patient portal if it offers documented messaging. Keep a copy.
I'm writing about a balance bill from [provider] for emergency services on [date] at [hospital]. Per the No Surprises Act (PHSA §2799A-1, 45 CFR §149.110), emergency services cannot be balance-billed regardless of network status, and my cost-share must be calculated as in-network. Please (1) re-process the bill at the in-network rate, (2) refund any amount I paid above the in-network cost-share, and (3) submit the rate dispute to my insurer through the federal IDR process if needed. I will file a complaint with the No Surprises Help Desk (1-800-985-3059) if the bill is not corrected within 30 days.
This is a starting point, not legal advice. Your specific situation may warrant additional details. Our scan tool drafts this letter automatically with your bill’s specifics filled in.
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Related scenarios
Surprise billing — out-of-network charges at an in-network facility
The No Surprises Act (2022) protects patients from out-of-network bills for emergency care and from out-of-network providers at in-network facilities. Federal law caps your liability.
Good Faith Estimate — when the bill is much higher than what they quoted
The No Surprises Act requires healthcare providers to give uninsured/self-pay patients a Good Faith Estimate. If the bill exceeds the estimate by $400+, you have federal dispute rights.
Common questions
Does this apply to ground ambulance?
What about urgent care?
P.S. The dispute language above is a starting point. Bills with this pattern often have additional issues alongside it — coding errors stacked with markup, surprise bills stacked with charity- care eligibility. The scan finds all of them in one pass. Start the audit →
P.P.S.Federal law gives you these rights regardless of how the bill arrived. Insured, uninsured, in-network, out-of-network — the underlying patient-protection statutes apply.
P.P.P.S. Bills are time-sensitive. Most insurance appeals must be filed within 180 days. Charity-care discounts at non-profit hospitals are most easily applied within 240 days of the original bill. Acting earlier costs less.