Sorry to hear that. I would call. You applied and put work into it so you're justified in wondering why they weren't interested. The majority of schools don't provide feedback unless you interviewed but it's worth a shot. Best of luck!
As a side note: GPA/MCAT don't carry nearly as much weight in this process as people think. If you watch these threads closely over the next few months thousands of people with fantastic stats are going to get rejected from schools were they appear to very very competitive. It's just a result of schools getting 7,000 applicants with 4,000-5,000 of them having stats in the acceptance range. We are all decent at math and understand the stats, but it's a little hard to swallow when you realize that, inevitable, you get rejected more than you get accepted.