Nah, I don’t think so, Mario has that iconic hat and clothing coloration. Nintendo would never do such a thing as to remove their mascot from uniform. Besides, Mario is vastly underqualified to be a doctor. He’s a plumber, doing such a menial task implies that he likely failed college, and that means he’d never be able to get a PhD. Have you ever seen Mario leave the Mushroom Kingdom periodically to pursue an education or work in a side job? No.

How would an Italian plumber keep such a white shirt clean? Mario is the kind of guy to eat spaghetti while doing a surgery, and would never be able to keep his job. Sewage is a major health hazard, if he had any level of medical expertise he’d never do such a thing as leaping inside of a dirty sewer pipe to fight the mutated turtles within.

He has no medical knowledge whatsoever, when he’s hurt he just finds and eats some *random sewer mushroom*. Mario doesn’t seem to understand the concept of microbes and infection, or else he’d stop doing such idiotic things. Remember, this is a man that eats random plants and gets so high that he thinks he’s become a frog by throwing his hat at a hallucination. Would a doctor violate his oath so blatantly as to jump on top of other people’s heads, or throw them into the abyss? Mario isn’t even human. His head is too unbalanced to make precise maneuvers, and he’s been proven mentally ill, trying to stick his entire body into a drainage pipe and crawl around within, and is so focused upon one girl to the point of stepping on animals and destroying buildings to get her love. Even after rejection, he just keeps going. This is either suicidal determination, or mental illness. Mario isn’t fit to treat any medical condition besides depression, making him more of a psychiatrist. Why would anyone ever give him any sort of degree or qualification? In conclusion, Mario could not possibly be a doctor, so Dr. Mario must be a cousin of his or something.