Balance Billing After the No Surprises Act: A Front-Desk Workflow

8 min read Medical Billing 2026 Guide

Billing specialist reviewing a patient statement and a good faith estimate at a desk, illustrating balance billing after the No Surprises Act

Direct answer: Balance billing is charging a patient the difference between what an out-of-network provider bills and what their insurer pays, and the No Surprises Act, effective January 1, 2022, bans it in three specific situations: emergency services from an out-of-network provider, non-emergency services at an in-network facility from an out-of-network provider the patient did not choose, and air ambulance services from an out-of-network provider. In those protected situations the patient pays only the in-network cost-sharing amount, their copay, coinsurance, and deductible, and the remaining balance is resolved between the provider and the payer through negotiation or the Independent Dispute Resolution process. Outside those situations, balance billing may still be allowed, and uninsured and self-pay patients must receive a good faith estimate before scheduled services. The practice's protection is a workflow: identify protected claims in the system, suppress the balance bill automatically, and keep the notice, consent, and estimate records that prove it.

THE THREE PROTECTED SITUATIONS

First, emergency services, regardless of network status. A patient who goes to an in-network emergency department but is treated by an out-of-network emergency physician cannot be balance billed, and this includes services after the patient is stabilized, unless the patient gives written consent and gives up the protections using the specific CMS-mandated notice form, at least 72 hours before the service where applicable. Second, non-emergency services at an in-network facility from an out-of-network provider. The most common situation involves out-of-network anesthesiologists, radiologists, pathologists, neonatologists, and assistant surgeons who the patient did not choose and often did not know were out-of-network. Third, air ambulance services from out-of-network providers. Ground ambulance is not covered by the federal ban, though some states regulate it, so check state law. In all three protected situations, the provider must accept the in-network cost-sharing amount as payment in full from the patient, and pursue any remaining balance with the payer, not the patient.

WHEN BALANCE BILLING IS STILL ALLOWED

The ban is narrow, and the front desk must know its edges. A patient who knowingly chooses an out-of-network provider for a scheduled, non-emergency service, with proper notice and written consent on the CMS form, can be balance billed, because the patient had the opportunity to choose an in-network alternative. Services that are not in the three protected categories, and patients who are uninsured or self-pay, fall outside the ban, and that is where the good faith estimate rules take over. State surprise-billing laws may be broader than the federal law, so confirm the applicable state rules as well. The practical rule for the desk is simple: if there is any doubt whether a claim is protected, treat it as protected until billing confirms otherwise, because an unsent balance bill can be fixed, while a sent one is a violation.

THE GOOD FAITH ESTIMATE WORKFLOW

For uninsured and self-pay patients, providers and facilities must supply a good faith estimate of expected charges before delivering scheduled services. The estimate must include the patient's name and date of birth, a description of each item or service, the expected charge for each item or service using the provider's cash rate, the NPI and tax identification number of each provider, a list of items and services reasonably expected to be furnished in conjunction with the primary service, and applicable diagnosis codes. The timing is specific and must be built into scheduling: if a service is scheduled at least 3 business days in advance, the estimate must be provided within 1 business day of scheduling; if scheduled at least 10 business days in advance, within 3 business days of scheduling; and if a patient requests an estimate without scheduling a service, within 3 business days of the request. Keep a copy of every estimate with the date it was given, because the estimate is the baseline for the dispute process that follows.

THE PATIENT-PROVIDER DISPUTE

If an uninsured or self-pay patient's final bill comes in $400 or more above their good faith estimate, the patient can initiate the patient-provider dispute resolution process. The patient has 120 days from the date of the bill to start a dispute, pays a $25 administrative fee, and the provider must submit supporting documentation within 10 business days. An independent dispute resolution entity then determines the payment amount, typically within 30 business days. The defense against a dispute is a careful estimate, made at scheduling, with every reasonably expected item included, because the dispute turns on the gap between the estimate and the bill. The requirement for insurers to give insured patients an advance estimate of their own cost-sharing has faced implementation delays and further federal rulemaking, so confirm the current enforcement status rather than assuming that piece is fully active.

THE IDR PROCESS BETWEEN PROVIDER AND PAYER

When a provider disagrees with a payer's payment for a protected claim, the Independent Dispute Resolution process is the resolution mechanism. After receiving the payer's initial payment or denial, the provider has 30 business days to initiate a 30-day open negotiation period with the payer. If negotiation fails, either party can submit the dispute to a certified IDR entity within four business days, filing through the federal IDR portal. Both parties submit their best offer, a specific dollar amount with supporting documentation, and the IDR entity selects the offer it finds most consistent with the qualifying payment amount, generally the payer's median in-network rate for the same service in the same geographic area, along with the provider's training, experience, and quality outcomes. Calendar both deadlines in the billing tracker, because the 30-business-day window and the four-business-day filing window are short, and a missed window ends the dispute.

BUILDING THE SUPPRESSION INTO THE SYSTEM

The single most important operational step is system-level: the practice management system must identify protected claims based on place of service, provider network status, and service type, suppress balance bills on those claims automatically, calculate the patient's in-network cost-sharing amount correctly, and route payment disputes to the IDR process when the payer's initial payment is below expected reimbursement. Failure to suppress a balance bill on a protected claim is a violation regardless of intent, and the penalty is up to $10,000 per occurrence. Practices that fail to provide good faith estimates face enforcement action and civil monetary penalties of up to $10,000 per violation as well. Test the suppression with a sample protected claim before relying on it, and audit statements monthly for any balance bill on a protected claim that slipped through. Train the front desk on the three protected situations, the notice and consent form, and the estimate timing, and keep the training record with the compliance file.

BALANCE BILLING WORKFLOW CHECKLIST

Protected claims identified by place of service, provider network status, and service type.
Balance bills suppressed automatically on protected claims, and suppression tested with a sample claim.
Patient charged only the in-network cost-sharing amount on protected claims.
Notice and consent form used correctly where a patient knowingly chooses an out-of-network provider, with the 72-hour rule observed.
Good faith estimate given to every uninsured and self-pay patient, within the timing rules, with a copy kept on file.
Patient-provider dispute deadlines known: $400 threshold, 120 days to dispute, $25 fee, 10 business days to submit documentation.
IDR deadlines calendared: 30 business days to open negotiation, four business days to file.
Statements audited monthly for balance bills on protected claims.
State surprise-billing law checked alongside the federal rules.

FREQUENTLY ASKED QUESTIONS

What is balance billing?

Charging a patient the difference between what an out-of-network provider bills and what their insurer pays.

When is balance billing banned?

For emergency services, non-emergency services at an in-network facility from an out-of-network provider the patient did not choose, and air ambulance services from out-of-network providers.

What does the patient pay on a protected claim?

Only the in-network cost-sharing amount: copay, coinsurance, and deductible.

How does the provider get paid the rest?

Through negotiation with the payer or the Independent Dispute Resolution process.

What is a good faith estimate?

A written estimate of expected charges given to uninsured and self-pay patients before scheduled services, with timing rules tied to how far ahead the service is scheduled.

What if the bill is much higher than the estimate?

If it is $400 or more above the estimate, the patient can start the patient-provider dispute resolution process within 120 days of the bill.

Can a patient ever consent to balance billing?

Yes, with proper notice and written consent on the CMS form, where the patient knowingly chooses an out-of-network provider for a scheduled service and had the opportunity to choose an in-network alternative.

A note on the law: The No Surprises Act, its regulations, and state surprise-billing laws continue to develop, and enforcement positions change. Always confirm the current requirements in the applicable federal and state guidance before relying on this workflow. This article is educational information about billing workflows, not legal or compliance advice.

Need help with No Surprises Act compliance, good faith estimates, or IDR disputes? Neximed Billing provides compliance and revenue cycle support for practices of every size. Contact us at info@neximedbilling.com or +1-406-2251570.