Dr. Mario

Dr. Mario is the persona Mario takes in the Dr. Mario series. Under this identity, Mario dons a lab coat, a head mirror, and a stethoscope around his neck. He first appears in his titular game, Dr. Mario. Dr. Mario and Nurse Toadstool, his assistant nurse, work at the Mushroom Kingdom Hospital, where Dr. Mario eliminates Viruses and other diseases by using Megavitamins, which has been the standard for subsequent games starring him.