Author: Hart, L.


Growth and Change in the Physician Assistant Workforce in the United States, 1967-2000.

The physician assistant (PA) profession grew rapidly in the 1970s and 1990s. As acceptance of PAs in the health care system increased, roles for PAs in specialty care took shape and the scope of PA practice became more clearly defined. This report describes key elements of change in the demography and distribution of the PA […]

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National Estimates of Physician Assistant Productivity

Analysis of productivity data from a nationally representative sample of physician assistants (PAs) showed that PAs performed 61.4 outpatient visits per week compared with 74.2 visits performed by physicians, for an overall physician full-time equivalent (FTE) estimate of 0.83. However, productivity of PAs varies strongly across practice specialty and location, with generalist PAs performing more […]

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The Contribution of Nurse Practitioners and Physician Assistants to Generalist Care in Washington State

Objective. To quantify the total contribution to generalist care made by nurse practitioners (NPs) and physician assistants (PAs) in Washington State. Data Sources. State professional licensure renewal survey data from 1998–1999. Study Design. Cross-sectional. Data on medical specialty, place of practice, and outpatient visits performed were used to estimate productivity of generalist physicians, NPs, and […]

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Who is Caring for the Underserved? A Comparison of Primary Care Physicians and Nonphysician Clinicians in California and Washington

Purpose: Little is known about whether different types of physician and nonphysician primary care clinicians vary in their propensity to care for underserved populations. The objective of this study was to compare the geographic distribution and patient populations of physician and nonphysician primary care clinicians. Methods: This study was a cross-sectional analysis of 1998 administrative and survey […]

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Understanding the Interactions between Physician Assistants and their Supervising Physicians in the Provision of Patient Care

A great deal of discussion and debate has surrounded the issue of autonomy of practice among physician assistants (PAs) and other non-physician clinicians. This study further explores this issue by closely examining the interactions between PAs and their supervising physicians in the provision of patient care. Utilizing a national sample of 1,112 full-time practicing physician […]

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