1. When you pull the room tile with the insane doctor, does it hurt you immediately?
2. Is there a way to attack the doctor? (it has no stat block)
1.) nope. It only damages you when it moves into your tile. Unless you want to insititute a hard mode, that is.
2.) You can always attack another player. Other things you can attack will tell you so.
So... Ghost Doctor and Spectral Child are spook ‘ems your terrified just-awoken-coma-patient minds can barely handle.