ummm, yeah it's a bit more than that, but nothing to get stressed over. I'm a first year at nycom. The interview is usually relaxed, depending of course on who you get. Know a bit about osteopathic tmt, why nycom specifically, and mostly, know yourself.
The secondary takes about 30 minutes or less to finish. You get a few lines for the smaller questions and maybe a third of a page for the larger stuff, ie, why nycom. Although, it may have changed since last year.
You'll get lunch and a tour after the interview then the director of admissions will talk for a bit, then your done. Most seem to be getting out around 2-3pm.
good luck.