I don't see any problem in checking to see if he is there... my sister in law sees the same pdoc I see but she sees her at the hospital. She don't have very good insurance so I told her she needs to try to make an appointment to see her where I go. They go by a sliding scale there too so she might be able to see her for free and maybe even get her meds for free because they have to pay full price for her meds too.
Good luck
Somebody