The No Surprises Act: What Patients Are Entitled To
The No Surprises Act, enacted as part of the Consolidated Appropriations Act of 2021 and effective January 1, 2022, establishes federal protections against unexpected out-of-network medical bills that patients had no practical ability to avoid. This page covers the statute's definition and scope, its operational mechanism, the clinical situations it most commonly governs, and the boundaries that determine when its protections apply. Understanding these entitlements is directly related to broader patient rights in insurance coverage disputes and the foundational framework described in the patient bill of rights.
Definition and scope
The No Surprises Act (Division BB, Title I of the Consolidated Appropriations Act of 2021, 42 U.S.C. § 300gg-111 et seq.) limits the out-of-pocket costs that patients enrolled in group or individual health insurance plans can be charged when they receive care from an out-of-network provider in specific, defined circumstances. The Centers for Medicare & Medicaid Services (CMS) and the Departments of Labor and the Treasury jointly administer and enforce the Act through coordinated rulemaking.
The statute applies nationally across all 50 states and the District of Columbia to:
- Emergency services provided at any participating emergency facility
- Non-emergency services delivered by an out-of-network provider at an in-network facility, under specific conditions
- Air ambulance services furnished by out-of-network providers
The law does not apply to ground ambulance services, which remain subject to separate regulatory attention as of the statute's current codification. It also does not extend to patients who are uninsured or underinsured without a qualifying health plan — though those patients have separate rights as uninsured patients under distinct frameworks.
The Act establishes two central patient entitlements: a cost-sharing limitation and an advance notice right. Cost sharing is calculated as if the out-of-network provider were in-network, meaning the patient pays no more than their in-network deductible, copayment, or coinsurance amounts for covered services (CMS, No Surprises Act Overview).
How it works
The mechanism operates in three discrete stages:
-
Cost-sharing determination. When the Act applies, the insurer calculates the patient's cost-sharing obligation using in-network rates. The difference between the provider's billed charge and the insurer's recognized amount is resolved through an independent dispute resolution (IDR) process between the insurer and provider — not passed to the patient.
-
Good Faith Estimate (GFE) requirement. Providers and facilities must furnish uninsured or self-pay patients with a written Good Faith Estimate of expected charges before scheduled services. Under the Patient-Provider Dispute Resolution process established by CMS, patients who receive a bill that exceeds the GFE by more than $400 may dispute the charge (45 C.F.R. Part 149).
-
Disclosure obligations. Facilities and providers must post a one-page notice — in at least 15 languages — explaining the federal surprise billing protections. This notice requirement is specified in the implementing regulations published by CMS in the Federal Register (86 Fed. Reg. 55980, Oct. 7, 2021).
The IDR process — where payers and providers negotiate the rate for disputed out-of-network claims — uses a "baseball-style" arbitration model administered by CMS-certified IDR entities. The arbitrator selects either the payer's offer or the provider's offer; they cannot split the difference. Patients are not parties to this arbitration and bear no financial risk from its outcome.
Enforcement authority rests with CMS for state and federal regulatory compliance, and with the Department of Labor for employer-sponsored plans governed by ERISA. Violations can result in civil monetary penalties of up to $10,000 per violation (CMS, Enforcement of the No Surprises Act).
Common scenarios
Three clinical contexts account for the majority of No Surprises Act applications in practice:
Emergency department visits. A patient presents at an in-network emergency facility. The treating physician, radiologist, or anesthesiologist is out-of-network. Under the Act, the patient's cost-sharing is limited to in-network levels regardless of the provider's network status. This scenario is particularly relevant to the emergency rights framework covered under emergency medical rights and EMTALA.
Scheduled surgery at an in-network hospital. The operating surgeon is in-network, but the assistant surgeon or the anesthesiologist is not. If the patient did not receive prior written notice of the out-of-network status and an opportunity to consent to higher charges at least 72 hours before the procedure (or on the day of scheduling for same-day appointments), the Act's protections apply and limit cost-sharing to in-network amounts.
Air ambulance transport. A patient requires emergency air transport by a carrier that does not participate in the patient's health plan network. The Act caps the patient's cost-sharing at in-network levels and prohibits balance billing. This protection applies to fixed-wing aircraft and helicopters used as air ambulances but, as noted, not to ground ambulance services.
Decision boundaries
The Act's protections are not unlimited. Specific conditions must be met for the statute to apply, and distinguishing covered from non-covered situations requires attention to four classification boundaries:
| Condition | Protected | Not Protected |
|---|---|---|
| Insurance status | Enrolled in group or individual market plan | Uninsured, self-pay (GFE rights apply separately) |
| Service type | Emergency, non-emergency at in-network facility, air ambulance | Ground ambulance, elective out-of-network care with valid consent |
| Consent and notice | No valid 72-hour advance notice received | Patient signed valid consent to out-of-network charges after proper disclosure |
| Facility type | EMTALA-participating emergency department, licensed in-network facility | Freestanding out-of-network facilities for non-emergency care |
The consent exception requires specific attention. If a patient receives adequate advance notice — in plain language, in a format meeting regulatory standards — and signs a written consent acknowledging the out-of-network status and estimated charges, the balance billing prohibition may be waived for certain non-emergency, non-ancillary services. CMS has published a list of services for which this waiver is not permitted regardless of consent; these include anesthesiology, radiology, pathology, neonatology, and assistant surgery services when provided at an in-network facility (CMS, Model Consent Form and Notice).
The Act's protections intersect with — but do not replace — state surprise billing laws. In states with stronger protections, state law governs. In states without a qualifying law, federal protections apply as a floor. This layered structure is addressed in the broader context of state patient rights laws and the specific framework for surprise billing patient protections.
Patients who believe a provider or insurer has violated the Act may file a complaint with CMS through the No Surprises Help Desk (1-800-985-3059) or pursue the patient-provider dispute resolution pathway administered by the federal government. Documentation of the original bill, any Good Faith Estimate received, and the explanation of benefits issued by the insurer are the primary evidentiary materials for any dispute. Further procedural context is available through filing a patient grievance.
References
- Centers for Medicare & Medicaid Services — No Surprises Act
- Consolidated Appropriations Act of 2021, Division BB, Title I — 42 U.S.C. § 300gg-111
- 45 C.F.R. Part 149 — Health Insurance Issuer Standards (eCFR)
- Federal Register Vol. 86, No. 192 — Requirements Related to Surprise Billing (Oct. 7, 2021)
- CMS — No Surprises Act Enforcement
- U.S. Department of Labor — No Surprises Act