BillFix

What it does

AI-powered dispute letters, billing error detection, and charity care guidance. Stop overpaying for medical bills. Generate professional dispute letters in minutes.

Upload your US hospital, clinic, or ER bill, click the charges you disagree with, and get a ready-to-send researched AI dispute letter to challenge those costs on your own terms. Patients have used BillFix to challenge ER bills, surgery charges, surprise out-of-network fees, and more. We help you turn confusing bills into clear disputes that billing departments have to take seriously. Spot duplicate charges, services you never received, or basic math errors by walking through your bill step by step. Flag overpriced items and unexplained fees. Your letter explains why those charges are unreasonable and asks for specific corrections. Highlight suspect CPT codes, out-of-network surprises, and…from billfix.co

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