1. Benefit paid by Medicare for a service provided by an employee who is a nurse, physician’s assistant, anesthetist, psychologist, technician, occupational therapist, or physical therapist. A physician bills Medicare for the service. When the services provided are integral, though incidental, to the physician’s professional service and are performed under direct supervision of the physician, Medicare classifies this care as “incident to a physician’s professional services” (e.g., a diabetic patient who reports to a clinic for checkups. 2. In the hospital setting, this term is used for revenue codes for pharmacy, supplies, and anesthesia with radiological procedures and other diagnostic services.