I ve heard some people say dont ask about call (the frequency), supposedly it could show your not a hard worker? I dont know, I am just saying what I heard. You can ask things like:
how many didactic sessions are they,
are the attending easy accessible/do they like to teach,
what are the stengths of the program,
if there is one thing you could improve what would it be,
what have some of the recent grads gone into,
do the grads find jobs in the immediate area or elsewhere,
how many poeple usually go into fellowships,
do the residents get along,
do the residents hang out outside of the residency,
ask stuff about the city,
are procedures plentifull,
what is the patient population like,
is there diverse pathology,
aside from the common chronic diseases is there exposure to some not so common pathology,
dont say "zed" for the letter "z"
do the residents follow a panel of pts throughout their residency for longitudial care,
how much exposure is there to [something your interested in]
are there any research oppertunities to help facilitiate fellowships,
schools if you have kids,
jobs if your wife may need one,
do you get to supervise medical students
patients load/cap
bottom line, dont be nervous just be yourself unless your really weird then just fake a normal person for the 1 hours of actually interviews...and also, at many places the residents do have some input so be nice to them.