Second interview

I haven't worked in this particular capacity, it sounds like the work you will be doing is similar to what might be found in a regular primary care office from what you wrote - just with a special population vs average insurance card holding middle income patients. There is an ambulatory care forum and I bet you would get some helpful answers from there too.

Were I applying for that position, I would probably emphasize my knowledge of local resources the homeless could use, as I could see resource connection possibly being a role that a nurse might have in a clinic for homeless individuals. As far as the questions to ask the interviewers, I would want to know what their policies were for providing care while someone is intoxicated and what their policy/procedures are for behavioral health incidents where staff safety may be an issue. Where I work, I interact with indigent intravenous drug users regularly in a syringe exchange capacity, so having good policies for staff safety for the 1% of clients that are problematic is important.

Congratulations, and let us know how your second interview goes! Good luck!