It's not. Physician reimbursement has been going down year over year since the late 90s. Each unit of physician work (relative value units, RVUs) is worth 50% of what it was in 1998 for Medicare at least, and most insurers peg their reimbursement at a specific multiple of the Medicare rate. Sorry, the insurance companies, PBMs, and hospital administration is to blame for the high cost of care, not the physicians who don't control how much they are reimbursed for each office visit or procedure.