It's hard for GPs to find work at the moment - this at a time when we're told there's a massive shortage of doctors. I have heard, anecdotally, of practices who employ PAs to see a large percentage take of patients under the nominal (but not proper) supervision of one GP in the practice. S/he can't possibly be supervising by considering if the diagnosis and treatment was appropriate by means of a swift glance at the paperwork review for all the patients the PAs have seen. There are plenty of cases reported as well of PAs not informing the patients that they're not doctors. "Hi, I'm Brian, I'm your clinician", leaving the patient thinking they've seen a doctor. They should make it clear to the patients (most of whom have no idea what a PA is, what their training involved, what the limitations on their practice is, how their knowledge and experience compares to a doctor).
I'd rather see a nurse, because I understand what a nurse is much better than I understand what a PA is.
PAs get paid less than GPs (but considerably more that newly qualified Drs)
Go figure...