visit, you get a form from your insurance company that is specifically for claims
reimbursement. (You may be able to print it on line at your ins. companies web site.)
You fill out the form,then you attach your HICFA (the medical forms you have from your dr. stating the diagnosis codes, what was done, and what they charged you) and wait for reimbursement. If they are going to pay, they will. If not, wait for a denial and then appeal it if you feel it is warranted.