Nurse pactitioners' substitution for physicians

Abstract

Background: To deal with a physician shortage and reduce salary costs, nurse practitioners (NPs) are seeing increasing numbers of patients especially in primary care. In Arizona, SB1473 has been introduced in the state legislature which would expand the scope of practice for NPs and nurse anesthetists to be fully independent practitioners. However, whether nurses provide equal quality of care at similar costs is unclear. Methods: Relevant literature was reviewed and physician and nurse practitioner education and care were compared. Included were study design and metrics, quality of care, and efficiency of care. Results: NP and physicians differ in the length of education. Most clinical studies comparing NP and physician care were poorly designed often comparing metrics such as patient satisfaction. While increased care provided by NPs has the potential to reduce direct healthcare costs, achieving such reductions depends on the particular context of care. In a minority of clinical situations, NPs appear to have increased costs compared to physicians. Savings in cost depend on the magnitude of the salary differential between doctors and NPs, and may be offset by lower productivity and more extensive testing by NPs compared to physicians. Conclusions: The findings suggest that in most primary care situations NPs can produce as high quality care as primary care physicians. However, this conclusion should be viewed with caution given that studies to assess equivalence of care were poor and many studies had methodological limitations.

Keywords

• nurse practioner
• physician
• physician assistant
• primary care
• outcomes
• costs
• efficiency
• SB1473
• productivity
• education