<p>Well, probably not very many more than five people apply to med school each year from Caltech, so that low number is not surprising, not that Caltech is a great place for most premeds. </p>
<p>By the way, that list is where people went not where they got in. People choose grad schools off of more than overall prestige. Location matters to a lot of people (notice the huge bias towards California grad schools.) Often, people will choose a smaller or less prestigious grad program because they got a special scholarship there and it's a lot cheaper or they're going there to work with a specific person. I think you will find that every single undergraduate school, no matter how prestigious, sends people to places like BU and Case Western (which might have prestigious programs in that persons' subfield of choice.) Generally, Techers with an average GPA and good research can still get into very good grad schools in their field. From many other schools, not only are you expected to have a significantly higher GPA but it's also much harder to find good research opportunities.</p>