[header] How to dispute medical bills on a credit report [title] Request a copy of your credit report. [step] Contact the three major credit reporting agencies (equifax, transunion, and experian) directly. You are also entitled to one free credit report per year from each agency by going to. 
[substeps] Make sure to check your reports from all three agencies, since each one may contain different information. If you find the error on multiple reports, you'll have to file a dispute with each agency.