Nineteen practice sites in Iowa were studied to determine the differences in the types of physician (MD) supervision the physician assistant (PA) received at work at satellite (separate from the major practice site of the supervising MD) and non-satellite practice sites. The MDs supervised PA functions in 12.9 per cent of the patients seen by the PAs at non-satellite and 15.9 per cent of patients they saw at satellite practice sites. All patients with presenting manifestations that suggested life-threatening conditions were seen by MDs at satellite and non-satellite sites. The MD spent 9.2 minutes per patient at satellite clinics, compared to 4.4 minutes per patient at non-satellite clinics. PAs working at satellite sites appeared to receive as much supervision as PAs working at non-satellite clinics.
