Doctor
From the Super Mario Wiki
Doctor is an occupation in the real world and Mushroom World. Being a doctor means taking care of people who are sick, and curing them from sickness and viruses. Sometimes doctor also refers to a scientist. "Professor" is another word for the scientist kind. There are many doctors in the Mario (series) series, probably the most notable one is Dr. Mario. An example of doctors who are scientists is Dr. Elvin Gadd.
The medicine doctors use in the Mario series are Megavitamins. Dr. Mario is the only one seen using them thought. In Mario & Luigi: Superstar Saga after Mario got Bean Fever a Mushroom Doctor sends Luigi to find a medicine called Crabbie Grass only found in Guffawha Ruins. Dr. Shroobs from Mario & Luigi: Partners in Time are a species of Shroob doctors who use Mushrooms as their medicine, to heal (or make sick) Swiggler.
Although not necessarily being considered a medicine, Coins used in Super Mario 64, Super Mario Sunshine, and Super Mario Galaxy, replenish Mario/Luigi's Health.
| Doctors and Scientists |
|---|
| Doctor | Dr. Crygor | Dr. Eggman | Dr. Frankenstein | Professor Frankly | Doc Freud | Dr. Sigmund Fruitcake | Professor Fungi | Professor Elvin Gadd | Professor Kooparity | Dr. Koopenstein | Laser Snifit | Dr. Light | Mad Scienstein | Dr. Mario | Mii | Mushroom Doctor | Dr. Nerdnick | Dr. Payne | Dr. Sheldon | Dr. Shroob | Dr. T. Garden | Dr. Toad | Dr. Toby | Dr. Topper | Dr. Sporis Von Fungenstein | Dr. Wily | X-Naut PhD |

