Understanding APRN Distribution in the United States Using NPI Data

This study examined the 2010 Centers for Medicare and Medicaid Services National Plan and Provider Enumeration System's National Provider Identifier (NPI) data to ascertain their usefulness to determine the distribution of advanced practice registered nurses (APRNs) in rural and urban areas of the United States. This study showed that certified registered nurse anesthetists were more likely to practice in rural areas in states with greater practice autonomy. For nurse practitioners, the findings were similar but were of borderline statistical significance. These findings imply that practice autonomy should be considered as a state-level strategy to encourage rural practice by APRNs.