Quite probably the physician got 10-20% of that supposedly charged amount, possibly less, and from what (s)he received was paying a variety of expenses includin

Quite probably the physician got 10-20% of that supposedly charged amount, possibly less, and from what (s)he received was paying a variety of expenses including a billing person to deal with the insurance company. If you have the procedure codes that were billed you can likely look up the Medicare reimbursement rates for them. Private insurance would pay more than that, but not orders of magnitude more.