I had been wondering why the 1st aid kit was on the bed but wrote it off as just part of Jpaps role playing but then you posed the question and I looked at the rules.
"If an insufficient number of players switch sides, the madman will be allowed to recruit a player to their side before night 1. If that player had been given a role, they are stripped of their abilities and will become an accomplice. The role will be passed on to an innocent. The accomplices may communicate with the madman and are each given one investigation to use throughout the course of the game. Only one may be used per night."
So someone that was the Dr is now an accomplice.