Colleges usually don't offer "pre-med" degrees - you are pre-med if you decide that you are and take the necessary undergraduate classes:
One year Biology w/lab
Two years Chemistry w/labs (inorganic and organic)
One year Physics w/lab
One year English
one - two semesters of Calculus
Major in anything you want as long as you get in the above classes.
Also pre-meds need to get clinical experience by shadowing doctors or working with patients.
Volunteering is encouraged (doesn't have to be in a hospital - as long as you are working with the public)
Research also encouraged (helping with research in a lab on campus or conducting your own).
and, of course, pre-meds are preparing to take the MCAT - usually in their junior year, spring. (if they want to be accepted to medical school right after they graduate from a 4 year school).