Yea, if you look through ADEA guide or predents.com you will see that out of approximatly 2000 applicants only 200 or so get interviews, out of those, only 100 will get accepted. So there are about 1800 getting rejected without interviews.
Of course those are just numbers I threw out there, but you get the point. Some have gpa cutoffs, some have DAT score cut offs or a number of other things that disqualifies applicants right of the bat.