Pathways to Independent Primary Care Clinical Practice: How Tall Is the Shortest Giant?

Patients can be treated by a physician, a nurse practitioner (NP), or a physician assistant (PA) despite marked differences in the education and training for these three professions. This natural experiment allows examination of a critical question: What is the minimum education and training required to practice primary care? In other words, how tall is the shortest giant? State licensing requirements, not educational bodies, legislate minimum training. The current minimum is 6 years, which includes 27.5 weeks of supervised clinical experience (SCE), for NPs. In comparison, PAs train for 6 years with 45 weeks of SCE, and physicians for at least 8 years with 110 weeks of SCE. Initial, flawed studies show equivalent patient outcomes among the professions. If rigorous follow-up studies confirm equivalence, the content and length of medical education for primary care physicians should be reconsidered. Unmatched medical school graduates, with 7 years of training and 65 weeks of SCE, more than the required minimum for NPs, deserve to practice independently. So do PAs. If equivalence is not confirmed, the minimum requirements for NPs and/or PAs should be raised, including considering a required residency (currently optional). Alternatively, the scope of practice for the three professions could be defined to reflect differences in training. There is an urgent need to set aside preconceived notions and turf battles, conduct rigorous independent studies, and generate meaningful data on practice patterns and patient outcomes. This should inform optimal training, scope of practice, and workforce development for each invaluable primary care clinical practitioner.