Take a wild guess!

I saw this in the parking lot a few weeks ago and never really gave it a second though. But today as I was passing I thought I'd take a picture and post it for you guys and make a little game of it. I bet you'll never guess the job title of the owner of this car. 

Hint: he works in the hospital about three floors above me.

Side note: I don't know if it's legal to take a picture of someone else's license plate.  Also, he has one of those license plate covers that deflects picture taking so that he can't get caught by the speed cameras. Hmmm....has someone been speeding around in their BMW?