If you are looking to save some money, you could take the 28X bus from the airport that will take you right to the famous Cathedral of Learning. (It'll cost you 2 bucks and about an hour of your time.) But wait, that's the main campus, I don't actually know if that's where the med school is...is it?
It's actually not that easy to find the link -- I was really confused when the woman from the admissions office told me there was info online, but eventually I found it. It's on the following page, in small yellow-orange typeface to the right of the "hotel accomodations" section.