At my program nps were never allowed to supervise residents. This was adhered to very strictly by all of the programs as far as my experience went. Once I ended up at the wrong nursing home (geriatric rotation and several nursing homes spread throughout the city) with one of the NPs instead of the attending so I couldn’t write any notes since then the np would technically be supervising me. I can’t remember what they had me do instead.
The icu was where they were around more than anywhere else but still attending or fellow wrote on my notes and supervised me. Never the np or pa.