Current PGY-3 Family Medicine resident with question about interviews

Hi all,

So I'll be graduating in June and have been looking at job offers and have done a few virtual interviews. Is it OK to ask about money during these interviews? My first interview I asked about starting salary and the interviewer seemed a little taken aback that I was asking that. When IS it appropriate to ask about salary, sign on bonus, that sort of thing? I wouldn't want to schedule for an in-person visit if the salary isn't something my wife and I are comfortable with so I felt like it was OK to talk about it during the virtual. I'm mainly looking at rural-ish positions in the mountain west (Montana, Idaho, Wyoming, Utah, Colorado) if that's important. I would appreciate any input I could get, thanks!