@mehc012 and I love the chauvinistic dismissal of the veracity of OP's experience, don't you?
Honestly, now that I know more facts, in OP's situation, I would report him to the hospital's HR or social worker, OP's university, or whichever shadowing or mentoring program you found this guy through. Creepers need to be stopped cold. If he's interested in dating, he needs to man-up and go about it the correct and appropriate way OUTSIDE of the workplace.
I'm sure Netflixing House and chilling while studying his "gross anatomy" is not your idea of shadowing and it's inappropriate, highly unprofessional, and just plain rude.
Why must men feel entitled to us? Because we don't stop them.
Like dogs they need a good smack with a rolled-up newspaper, right across their noses, every once in a while.
Note: I am not victim-blaming nor advocating domestic violence or violence of any sort. I am, however, comparing most men to dogs, but I think that does most canines a grave disservice, for which I sincerely apologize.