What To Do
How To File a Complaint About a Medical Bill
Filing a complaint about a medical bill can resolve issues that direct negotiation cannot. Multiple agencies can help.
Updated August 17, 2026 · 6 min read
Quick answer
To file a complaint about a medical bill, contact your state insurance commissioner, your state attorney general consumer protection division, or the Centers for Medicare and Medicaid Services (if applicable). You can also file a complaint with the CFPB.
Where To File
Several agencies accept medical billing complaints.
- State insurance commissioner - handles complaints about insurance billing and provider disputes.
- State attorney general - handles consumer protection complaints about unfair billing practices.
- CMS (Centers for Medicare and Medicaid Services) - handles complaints about Medicare and Medicaid billing.
- CFPB (Consumer Financial Protection Bureau) - handles complaints about medical debt and collections.
- Hospital compliance department - handles internal complaints about billing practices.
How To File
Each agency has its own process. Most accept online complaints through their website. Prepare your complaint by gathering the bill, EOB, correspondence with the provider, and a clear description of the issue.
What To Include
Your complaint should include your name and contact information, the provider name and address, the bill amount and date, a description of the issue, copies of relevant documents, and what resolution you are seeking.
Frequently asked questions
Will filing a complaint resolve my billing issue?
Filing a complaint often prompts a response from the provider or insurer. Many complaints are resolved through------ or direct intervention by the agency.
Can I file a complaint anonymously?
Some agencies allow anonymous complaints, but providing your information typically leads to a more thorough investigation.
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