When the average person goes to the average doctor, he or she may pull out a wad of cash to pay for the visit. But for many people, the visit is mostly paid for by either an insurance company or some sort of government assistance program. The person usually has some sort of plastic card with his or her name on it and lots of identification numbers. The receptionist usually asks for the card to copy it and then asks for a “co-pay,” which is usually between $10 and $25 dollars that the patient must pay upfront at each visit. The patient’s job is generally easy: hand over a card and pay a little money. But on the other side of the counter is the just the tip of the iceberg of a crucial aspect in the financial sector of medicine: medical billing. The goal is this: financial reimbursement from the insurance or governmental agency on each patient’s medical bills. No company—private or public—pays a full reimbursement. But the physician or medical clinic wants to do all it can to get the maximum payment. And that’s where the experts in medical billing step in to help.