According to a 2024 Consumer Financial Protection Bureau report, millions of Americans have faced unexpected medical bills after emergency room visits, even when they carried active health insurance. Before 2022, patients had little recourse when an out-of-network physician they never chose sent a bill for thousands of dollars. Today, federal law says insured patients do not owe that balance and can refuse to pay it.
Yet hospitals and provider groups keep sending these bills. More than four years after Congress banned the practice, the disconnect between what the law prohibits and what actually lands in patients’ mailboxes remains one of the most persistent consumer-protection failures in American health care.
What the law actually says
The No Surprises Act took effect on January 1, 2022, adding Section 300gg-131 to Title 42 of the U.S. Code. The statutory language is blunt: out-of-network providers “shall not bill” emergency patients for more than the in-network cost-sharing amount. If your plan’s in-network copay for an ER visit is $250, the out-of-network emergency physician cannot send you a bill for the remaining $3,950. The provider and your insurer have to resolve that gap between themselves.
The protection is broad. According to the Consumer Financial Protection Bureau, the ban covers most emergency services regardless of whether the hospital itself or the individual physician participates in your insurance network. It also extends to air ambulance services and to certain non-emergency care delivered by out-of-network providers at in-network facilities, such as a lab or anesthesiology group you had no ability to select.
One critical detail for emergency patients: providers cannot ask you to waive these protections. In some non-emergency situations, a provider may present a written notice and obtain your consent to be billed at out-of-network rates. But that option does not exist for emergency care. If you were treated in an emergency department, the ban applies and cannot be signed away.
Important limitation: The No Surprises Act applies to people covered by group or individual health insurance plans. It does not protect uninsured patients in the same way, though a separate provision requires providers to give uninsured or self-pay patients a Good Faith Estimate of expected charges before scheduled services. Ground ambulances are also excluded from the law’s balance-billing ban, a gap that Congress has acknowledged but not yet closed.
Why the bills keep coming
The law is clear. Compliance is not.
No publicly available federal dataset tracks how many hospitals or provider groups have continued sending prohibited balance bills since 2022. The Centers for Medicare and Medicaid Services operates a No Surprises Help Desk where patients can file complaints, but aggregate complaint volumes and resolution rates have not been published in a way that lets the public gauge the scope of the problem.
What is visible is the volume of disputes between providers and insurers. The law created an Independent Dispute Resolution (IDR) process so that payment disagreements stay between the two parties and never reach the patient. According to CMS Federal IDR Process Status Updates, roughly 490,000 IDR cases were initiated through late 2023 and into early 2024, a figure that reflects widespread disagreement over payment amounts even when patients are theoretically shielded from the fight.
The IDR system itself has been battered by litigation. In a series of federal court rulings spanning 2023 and 2024, decisions in Texas Medical Association v. U.S. Department of Health and Human Services struck down portions of the IDR methodology, forcing CMS to revise its approach multiple times. Those rulings did not weaken patient protections against balance billing. But they created prolonged uncertainty in the provider-insurer payment process, contributing to a backlog that, by some accounts, left billing departments operating without clear internal guidance on how disputed claims would ultimately be resolved.
Several factors feed ongoing violations: outdated revenue-cycle software that was never updated to flag prohibited charges, training gaps in billing departments, and in some cases what consumer advocates and state attorneys general have described as deliberate strategies to bill patients and see who pays without questioning it.
What to do if you get a surprise bill
If a bill arrives for out-of-network emergency care that exceeds your in-network cost-sharing amount, you have concrete steps available right now.
1. Compare the bill to your Explanation of Benefits. Your insurer sends an EOB after processing a claim. Check whether the service was classified as emergency care and what your in-network cost-sharing amount should be. If the provider’s bill exceeds that figure, the extra charge is likely prohibited under the No Surprises Act.
2. Call the provider’s billing department and cite the law by name. Be specific. Tell them the service was emergency care, that federal law under 42 U.S.C. § 300gg-131 prohibits balance billing beyond in-network cost-sharing, and that you are requesting the charge be corrected. Document the call: note the date, the representative’s name, and what they tell you.
3. File a complaint with the No Surprises Help Desk. Call 1-800-985-3059 or visit the CMS medical bill rights page for the online complaint portal. Federal staff can intervene directly with the provider on your behalf.
4. Contact your state insurance department or attorney general. Some states had their own surprise billing laws before the federal rule and maintain active enforcement programs. New York, Texas, California, and several others have dedicated complaint pipelines. A state-level complaint can add pressure, particularly if the provider is a repeat offender.
5. Respond in writing and do not pay the disputed amount. Ignoring medical bills entirely can lead to collections activity. Instead, send a written dispute to the provider, reference the No Surprises Act, and keep copies of everything you send and receive. CMS guidance directs providers not to pursue collections on charges that violate the balance-billing ban, but monitoring your credit reports through AnnualCreditReport.com is a reasonable precaution.
6. Know the credit-reporting landscape. Since 2023, the three major credit bureaus (Equifax, Experian, and TransUnion) have stopped reporting medical debt that has been paid and no longer report unpaid medical debt under $500. This does not eliminate the risk of collections harassment, but it does reduce the long-term credit damage from a billing dispute you are actively fighting.
Where the enforcement gaps remain
The law gives patients a strong legal position. The enforcement infrastructure has not caught up.
Without published complaint data, it is impossible to know whether federal regulators are actively penalizing providers who violate the ban or simply processing individual complaints one at a time. Patients who successfully dispute a bill may never learn whether the provider faced any consequence beyond adjusting that single account.
State-level enforcement varies widely. States that had robust surprise billing laws before 2022, like New York and Texas, tend to have more developed complaint and enforcement pipelines. States that relied entirely on the new federal protections may have less infrastructure in place to catch violations.
The IDR backlog matters indirectly, too. When providers and insurers cannot resolve payment disputes efficiently, some billing departments may default to sending the full charge to patients, whether out of confusion or as a pressure tactic to extract payment from the path of least resistance.
What you can verify now and what still requires you to push
The narrowest and most reliable conclusion is this: if you received emergency care and have health insurance, federal law prohibits the provider from billing you more than your in-network cost-sharing amount. That is not a gray area. It is the plain text of a statute that has been in effect since January 2022, backed by implementing regulations in 45 CFR Part 149 and consumer-facing guidance from both CMS and the CFPB.
What you cannot count on, as of June 2026, is that every hospital and provider group will follow that law without being challenged. The enforcement data that would let the public assess compliance simply does not exist in accessible form. Until it does, treat every surprise bill as something to question, dispute, and escalate. The law is on your side. The system for enforcing it still requires you to push.
