Copays and coinsurance are responsibilities of the patient as determined by your insurance plan.  Remember, your insurance is a contract between you, your employer, and your insurance company.  We are not a party to that contract.  Some plans are written with a specific copay for an outpatient center and a coinsurance for the physician's office.  The benefits are not determined by our office or our endoscopy center, but are determined by your insurance plan.