Arbitration for surprise medical bills works best when it favors the provider. Under the No Surprises Act, federal arbitration (called Immediate Dispute Resolution, or IDR) resolves out-of-network payment disputes between insurers and providers through binding final-offer arbitration—a process where each side submits a price and a third party picks one. The law protects patients from being billed directly for out-of-network emergency care and for non-emergency services at in-network facilities; you pay only your normal copay or deductible, and the insurer and provider fight over the rest.
However, the data shows the system favors providers overwhelmingly. Providers win approximately 85–90% of disputes filed in recent years, with median awards reaching 2.7 to 5 times the regional baseline rate. This suggests arbitration "works" chiefly as a tool for provider leverage, not patient protection.
Table of Contents
- How the Arbitration Process Protects Patients
- Provider Win Rates and What That Means
- Emergency Care Works Better Than Scheduled Services
- The System Failed at Scale
- If You're Uninsured
- What You Can Actually Do
- Frequently Asked Questions
How the Arbitration Process Protects Patients
The No Surprises Act, enacted in December 2020, created federal arbitration to resolve payment disagreements without involving the patient. When an out-of-network provider and your insurer cannot agree on a fair price, either one can request arbitration. An arbitrator reviews both sides' offers and chooses the one closer to the Qualifying Payment Amount (QPA)—a regional benchmark based on 2019 contracted rates in your area.
You cannot be held responsible for the disputed amount. Your insurer and the provider must resolve it through arbitration, and you owe only your standard patient cost-sharing (copay, coinsurance, or deductible). This was a major consumer protection: before the law, you could receive a surprise bill for thousands of dollars from an out-of-network provider even if the emergency room where you sought care was in-network.
Provider Win Rates and What That Means
providers win roughly 85% of arbitration cases, a fact that challenges the premise that the system balances both sides fairly. Data from 2023 through mid-2026 shows this rate has remained stubbornly high. When providers win, arbitrators often award them 2.7 to 5 times the QPA—far above the regional benchmark.
This suggests that providers have either stronger arguments or that arbitrators systematically value their submissions over insurers'. Private equity–backed provider groups win at even higher rates than independent practices, indicating structural advantages in arbitration strategy and resources. For a patient, this means the system designed to protect you from surprise bills has instead become a mechanism for providers to extract payments well above market rates. Your protection is limited: you stay out of the dispute and its costs, but the dispute itself is lost more often than won.
Emergency Care Works Better Than Scheduled Services
Arbitration performs better when disputes involve emergency services with clear regional benchmarks. The Qualifying Payment Amount is easier to defend when many providers and insurers have negotiated similar rates nearby. But this advantage shrinks or disappears for elective or scheduled care in states with sparse in-network networks or small insurer market share. Provider win rates also vary sharply by state—from roughly 60% in Washington to 81% in new York, according to a Congressional Research Service analysis.
This geographic variation reflects differences in network density, market concentration, and state regulation. If you're in a state where providers face less network competition, you're more likely to face a surprise bill, and arbitration is less likely to rule in your favor.
The System Failed at Scale
Congress projected about 22,000 arbitration disputes per year when it designed the system. In 2025 alone, 2.6 million disputes were filed. The first six months of 2026 saw 1.75 million more—a system overwhelmed by demand. This is not a feature; it is a fundamental failure to bound the mechanism. Total costs through the end of 2025 reached $22.4 billion, according to the Georgetown Center on Health Insurance Reforms.
Of that, $15.6 billion represents excess payments to providers above in-network rates, and $6.9 billion paid for arbitrators and administrative overhead. None of this cost falls directly on you; insurers absorb it and pass it along in premiums. But the scale of the overpayment—five to six times what Congress anticipated—suggests the arbitration system has become a subsidy to providers rather than a dispute-resolution mechanism.
If You're Uninsured
Uninsured patients cannot use IDR arbitration because there is no insurer to dispute with. Instead, if a provider's final bill exceeds the good faith estimate by $400 or more, you may file a separate federal dispute through CMS's dispute process. This process exists but has lower uptake, partly because few patients know about it and it requires you to initiate and navigate the claim yourself. The same protections that shield insured patients from surprise bills do not extend to you automatically; you must actively challenge the bill.
What You Can Actually Do
If you receive a surprise bill, check whether arbitration has already occurred. Your insurer and the provider may have resolved the dispute and the final amount may be different from what appears on your bill. Contact your insurer's patient advocate or appeals department to ask whether a dispute was filed and, if so, what was decided.
If the bill is recent and you believe it violates the No Surprises Act (you were surprised, the care was emergency or at an in-network facility), report it to your state insurance commissioner and the Centers for Medicare and Medicaid Services (CMS). Document the original bill, the reason you thought the facility was in-network, and the date of service.
These agencies track complaints and use them to identify systemic violations. Do not assume arbitration protects you from all surprise bills. It protects you from being billed directly while disputes are resolved, but the dispute itself favors providers so consistently that your "protection" may be limited to staying out of a fight you were never meant to win.
Frequently Asked Questions
Does arbitration mean I won't be charged for a surprise bill?
You won't be charged while the dispute is pending, but arbitration is resolved between your insurer and the provider—not by you. The insurer absorbs the cost if it loses.
What if I'm uninsured and get a surprise bill?
You can file a separate federal dispute if the bill exceeds the provider's good faith estimate by $400 or more, but you must initiate it yourself; the protection is not automatic.
Why do providers win so often if the QPA is supposed to be the fair price?
Arbitrators can choose either side's offer, and providers' offers often range 2.7 to 5 times the QPA. Providers may have more resources to prepare stronger cases, and private equity–backed groups consistently win at higher rates.
Can I opt out of arbitration?
You don't make the choice; your insurer and the provider do. Your role is limited to paying your normal copay or deductible.