List of Medicare payment fees based on resource-based relative value scale (RBRVS) factors. These factors are based on the physician’s work, medical practice expense, and malpractice insurance costs. The fee schedule is based on relative value units (RVUs). A formula is used to obtain the RVU consisting of three components: relative value unit (RVU) for the service, a geographical adjustment factor (GAF), and a monetary conversion factor (CF). Synonymous with and also see resource-based relative value scale (RBRVS) . Also called Medicare physician’s fee schedule (MPFS) .