I've never heard of that before! I would contact your health insurance provider, they always have a customer service line.

Were the two copays both for the office visit? I'm a manager at a third-party medical billing company, and I would think that if they billed you for two copays, one is for the visit, and one is for a procedure done while you were there. Did you have to visit a lab to get blood drawn? Were there x-rays? EKG? Any other tests? Even if you never left the building, you might have gone to a lab within the same facility to get some work done. (For example, my doctor is in a three story building, that has a medical lab, radiology lab and various doctors offices. When I go for bloodwork, I walk down a flight of stairs to the lab, without ever going outside or seeing anything that would identify it as being different from my doctor's office.) The only way to tell for sure if the two copays are legitimate, is to look for a Procedure Code (Also called a CPT Code) that the copay relates to. An office visit CPT code is usually 99201, 99202, 99203, 99204 or 99205 (Office Visit, New Patient). An example of a common blood draw CPT code is 36415 (Routine Venipuncture for Collection of Specimen) or 36416 (Collection of Capillary Blood Specimen). Read the details of your visit on the contact sheet and the details of your insurance plan, and see if it warrants two copays. Best of luck.