Studies consistently find that a significant percentage of medical bills contain errors. Surprise bills, balance billing charges, duplicate codes, and services billed but not rendered cost Americans billions every year. You have the right to dispute every charge before you pay.
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Since January 2022, federal law prohibits balance billing for emergency care at any facility and for out-of-network providers at in-network facilities — including anesthesiologists, radiologists, and assistant surgeons you did not choose. If your bill falls into either category, you cannot legally be charged more than your in-network cost-sharing, regardless of what the provider billed. Most people who receive these bills never know this protection exists.
These are the situations we see most often. Every one has legal grounds to challenge — and none requires a lawyer to dispute.
Why it overturns: This is exactly the situation the No Surprises Act was designed to prevent. If you received care at an in-network facility and an out-of-network provider treated you without your prior written consent and notice of their network status, they cannot bill you more than your in-network cost-sharing. The provider must work out the payment difference with your insurer — you are not responsible for the balance. File a complaint with the No Surprises Help Desk at 1-800-985-3059 and submit a formal dispute to your insurer citing the No Surprises Act protections.
Why it overturns: Medical billing errors are extraordinarily common. Duplicate charges occur when the same service is billed twice under different codes. Upcoding occurs when a higher-complexity service code is billed for a simpler service actually rendered. Services not provided appear on bills regularly due to administrative errors. Request a complete itemized bill from the provider and compare every line item against your treatment records and your Explanation of Benefits from your insurer. Any charge that does not correspond to a documented service is a billing error you have the right to dispute in writing, and the provider is required to correct accurate errors.
Why it overturns: Whether balance billing is permitted depends on the type of insurance, the provider's network status, and your state's laws. In-network providers have contractually agreed not to balance bill — if your provider is in-network, any balance billing beyond your standard cost-sharing is a contract violation you can dispute directly with your insurer. For emergency care, the No Surprises Act limits balance billing regardless of network status. Several states also have independent laws prohibiting or limiting balance billing in situations the federal law does not cover. Review your state's specific protections before paying any balance bill.
From confusing medical bill to formal dispute letter in about 3 minutes. Do not pay until you know what you actually owe.
Take a photo or upload a PDF — that's really all it takes.
Hospital bill, provider statement, Explanation of Benefits, balance billing notice, surprise bill — if it is a medical charge that feels wrong, confusing, or unfair, ClaimCompass can read it. Your document is handled securely and automatically deleted if you do not continue. No account needed to start.
Within seconds — No Surprises Act protections identified, billing errors flagged.
Our AI identifies whether the bill involves a potential No Surprises Act violation, a billing code error, an incorrect balance billing charge, or a dispute you should be taking to your insurer. You receive a viability score from 0–100, a plain-English explanation of what may be wrong with the bill, and the specific steps to take — including whether to dispute with the provider, your insurer, or both. This analysis is completely free, no sign-up required.
Legally cited, professionally written, ready to send — for $49.
ClaimCompass generates a complete, formal dispute letter citing the No Surprises Act, your insurer's explanation of benefits, applicable state consumer protection laws, and the specific billing errors identified. The letter requests itemized billing documentation, places the charge in dispute, and demands correction. Level 1 dispute, Level 2 escalation, and state insurance commissioner complaint letters are all included in your $49 payment.
A score above 70 means you have solid grounds to dispute the charge. A score of 90 or higher — which we see frequently in No Surprises Act violations and clear billing code errors — means the charge is almost certainly incorrect and should not be paid.
Upload your medical bill or surprise billing notice. In under a minute, you'll know whether the No Surprises Act protects you — and exactly what to dispute.
Analyze My Bill — Free →Free to analyze · $49 complete dispute letter · No subscription · All escalation levels included