They probably do have a small nod, but as a top 10 ranked med school, NYU wants the best of the best across the country. And fwiw, for many years, Cal students had decent success getting into NYU med.
Probably not a good idea to make assumptions either way without an explicit statement from the department. If the department has a large number of graduate students, you may get a hint by checking the graduate student profiles to see if any came from the same undergraduate school.