I don't know...my fin aid lady Joanna? said that there would be merit scholarships given out not by fin aid, but by the admission office, during the interview. She also made a guess as to the total of merit award and said that it would be way under 10 and that it can be any where from one year tuition to four. However, it could also be the case that instead of the "merit award" in the traditional sense, those were special fellowships/scholarships given to students with certain background.
I tried to verify through MDApp. I've only found one guy with merit scholarship in the past several years. He's a super star+URM, who had a merit award from pretty much every single top schools but few that just never gave any.