Bill Came in $400+ Over Your Good Faith Estimate? The Dispute Process, Step by Step

Under the No Surprises Act, self-pay patients who receive a bill $400 or more above their Good Faith Estimate can dispute it. Here is the full process.

Bottom line up front: If you are an uninsured or self-pay patient in the United States and your final bill exceeds your Good Faith Estimate by $400 or more, you have the right to dispute the excess charges. The dispute process has deadlines, documentation requirements, and a defined resolution path. Here is exactly how it works.

What the Good Faith Estimate Gives You

The No Surprises Act requires healthcare providers to give uninsured and self-pay patients a Good Faith Estimate (GFE) before any scheduled service. The GFE must include the expected charges for the primary service, any items or services reasonably expected to be provided alongside it (anesthesia, facility fees, imaging, lab work), and the provider or facility NPI numbers.

The GFE is not a contract. It is an estimate. But under the law, it creates an enforceable protection: if your final bill exceeds the GFE by $400 or more, you can challenge the excess through a federal dispute resolution process.

The Dispute Process

1

Confirm your bill exceeds the GFE by $400 or more

Compare every line item on your final bill against the GFE. The $400 threshold applies to the total bill, not individual line items. If the GFE said $5,000 and the bill is $5,350, you do not qualify. If the bill is $5,400, you do.

2

File within 120 calendar days

You have 120 calendar days from the date you receive the bill to initiate the dispute. Not the date of service. The date you received the bill. If the bill was mailed, the receipt date is assumed to be 3 business days after the postmark unless you can prove otherwise.

3

Initiate the dispute at CMS

File through the CMS Patient-Provider Dispute Resolution portal. You will need your GFE (keep the original), your itemized bill, your contact information, and the provider's information including NPI numbers from the GFE.

4

Pay a $25 administrative fee

The patient pays a $25 administrative fee to initiate the dispute. If you win, the fee is refunded. If you lose, you do not get it back, but $25 is the maximum cost of trying.

5

Wait for the determination

A Selected Dispute Resolution (SDR) entity reviews the GFE and the bill. The provider must respond within 10 business days. The SDR entity makes a binding determination within 30 business days of receiving all information. The determination is final for both parties.

What Counts and What Does Not

Counts Toward the $400 ThresholdDoes Not Count
Charges for services listed on the GFE that came in higher than estimatedServices you requested after receiving the GFE that were not on the original estimate
Services reasonably expected but omitted from the GFEEmergency services that arose during the procedure
Facility fees, anesthesia, and ancillary charges on the GFEItems you signed a separate consent and cost agreement for

Key Point

If the provider did not include a reasonably expected service on the GFE (for example, omitting anesthesia from a surgical estimate), that omission counts in your favor. The GFE is supposed to include all reasonably expected charges. An incomplete GFE strengthens your dispute, not weakens it.

How to Protect Yourself Before the Bill Arrives

This Does Not Apply Abroad

The Good Faith Estimate requirement is a US federal regulation. International providers are not covered. If you are having surgery abroad, you should still get a written estimate with all line items, but the federal dispute process does not apply. Your recourse for a bill discrepancy abroad depends on the facility's own policies and local consumer protection laws.

What is a Good Faith Estimate?

A written estimate of expected charges that US healthcare providers must give uninsured or self-pay patients before scheduled services, created by the No Surprises Act.

When can I dispute a bill using my Good Faith Estimate?

When your final bill exceeds the GFE by $400 or more. File within 120 calendar days of receiving the bill through the CMS dispute resolution portal.

Does the Good Faith Estimate apply to surgery abroad?

No. The GFE applies only to providers subject to US federal regulation. International providers are not covered, but you should still get a written estimate.

Related: CashMedical.co

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This article is for informational purposes only. It does not constitute financial, legal, or medical advice. Savings figures are typical 2026 ranges drawn from public sources and may vary by provider, region, and individual circumstance. Always verify with your provider, insurer, or tax advisor before making decisions based on the information here.