The origin of Super Villians: Crime Doctor
https://en.wikipedia.org/wiki/Crime_Doctor_(comics)
The Crime Doctor is the name of two fictional supervillains that appears in American comic books published by DC Comics. The Crime Doctor is an underworld medical expert who caters exclusively to criminals, originally an enemy of Batman.[1]
The first Crime Doctor first appeared in Detective Comics #77 (July 1943), and was created by Bill Finger and Bob Kane.[2]
Matthew Thorne
The Crime Doctor is surgeon Matthew Thorne, a renowned doctor. In post-Crisis continuity, he is the brother of the Gotham City gangster Rupert Thorne under the name Bradford Thorne.
Earth-Two
On Earth-Two, Matthew Thorne started out as a rogue physician in Gotham City, setting up an illegal clinic and treating criminals for money. He was stopped and apprehended time and time again by the Batman. Shortly after this, Thorne escaped prison and once again opened his crime clinic, but this time he traveled across the country. Batman and Robin learned of his escape and they chased Thorne all the way to California, where Thorne saved Robin's life after he was shot by one of the doctor's henchmen. In the end, Thorne was betrayed by one of his own men, who shot him in the back, killing the doctor almost instantly.[3][4]
more at link...