A physician, medical practitioner, doctor of medicine, or medical doctor practices medicine, and's concerned with maintaining or restoring human health through the study, diagnosis, and treatment of disease and injury. This's accomplished through a detailed knowledge of anatomy, physiology, diseases and treatment — the science of medicine — and its applied practice — the art or craft of medicine. Etymology The word physician (physis) and its derived adjective physikos, mea… (More on Physician)