How late into the season do they hold interviews? January?
Don't give up just yet - there will be cancellations. You don't want to pester them, but still, at some point you have nothing to lose...
OTOH...it is easy for me to say this, but it would probably be healthier to just lose the obsession about pre-interview rankings - you know, your dream programs and all that. Take the "a bird in the hand..." approach to all of this. Your objective is to match, not to match at OHSU.
I had several programs at or near the top of my pre interview rank list that I never heard from. When November 1 hit, after nearly 3 weeks of no more invites (and none ever came), I removed them from my spreadsheet because I had 5 interviews coming up, and I needed to focus on them, not on the others.
In fact, I would have a very hard time telling you which programs they were because I "erased" them, and I focused solely on the interviews in hand...after Nov 1, those programs were dead to me...
The one that I do remember is Cambridge Health Alliance, and I remember because they sent a "sorry but no dice" email, or maybe it was snail mail. So for all of you who want closure, be careful what you wish for...silent rejections are easier to forget. This process isn't about the ones that got away...you will know what I mean when the deadline for submitting your ROL is upon you - you will not be thinking about the programs that blew you off...I suggest that by November 1, focus on the birds in hand, and forget about the rest of them.
Good luck.