Generally speaking, PAs and NPs must technically be "supervised" by a physician. I think the degree of supervision varies by state, but it's typically not case

Generally speaking, PAs and NPs must technically be "supervised" by a physician. I think the degree of supervision varies by state, but it's typically not case-by-case supervision - rather more of a general sign-off sort of thing, with availability for the "tough cases". That sort of sounds like what you're describing, though obviously there's a wide spectrum of how involved the doctor can get.