Sorry for the confusion... 150 referred to the number of applicants, not interviewees as per http://bmi.stanford.edu/prospective-students/faq.html. I guess the exact number was 135...
Thanks for the info AlexOckham! That's what I was looking for. I received both a call and an email within an hour of each other late last week.
I've recently been offered an interview for a Biosciences PhD (in the Biomedical Informatics home program) at Stanford. I was curious if anyone had an idea as to what the chances were of being admitted after being invited for an interview? I saw on their website that a recent cycle had 150 applicants were 7 were admitted... Yikes!