What To Do
How To Dispute a Medical Bill You Do Not Recognize
A medical bill you do not recognize may be for a service you did not receive, a wrong-date charge, or a billing error. Dispute it before paying.
Updated August 17, 2026 · 6 min read
Quick answer
If you receive a medical bill for a service you do not recognize, do not pay it. Contact the provider and your insurer to verify whether the service was performed, whether it was billed correctly, and whether it was covered by your plan.
Verify the Service
Check your own records - appointment confirmations, receipts, and any paperwork from your visits. Confirm whether you received the service listed on the bill on the date shown. If you are certain you did not receive the service, proceed with a formal dispute.
Contact Your Insurer
Call your insurer and reference the claim number. Ask whether the service was processed, who the provider was, and what was billed. If the service was covered, verify that the EOB matches the bill. If the service was denied, request a copy of the denial notice.
Contact the Provider
If the service appears to be a billing error, contact the provider billing department. Explain that you do not recognize the service and request an explanation. Ask them to verify the charge and correct or remove it if it is in error.
Send a Written Dispute
If the phone call does not resolve the issue, send a written dispute by certified mail. Include copies of your records showing you did not receive the service, your EOB, and the bill. Request that the charge be removed.
Frequently asked questions
What if the bill is for a family member?
If the bill is for a dependent or family member, verify whether the service was performed. If it was not, dispute the charge. If it was, check whether the service was covered under your plan.
Can I be billed for a service I did not authorize?
Unauthorized charges are a common billing issue. Contact both the provider and your insurer. If the service was performed without your knowledge or consent, you may have grounds to dispute it entirely.
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