Yes. Some schools "pre-screen" applications, meaning they look at your primary and (usually) based on your numbers, if you're above a certain threshold, they'll send you a secondary. For some schools, it's as long as you get an 8 or above on the MCAT sections, for others it's a 10+, and still for others, its a minimum GPA and MCAT.
I have mixed feelings on it. It's nice, in a way, because it saves you the money of a secondary app fee if all they were going to do is toss your app in the garbage. On the other hand, you'd like to think that once the schools got to know you better in your secondary, they might warm up to you a bit, right?