Availability of primary care providers and pharmacists in the United States

To determine the rural distribution of primary care providers (primary care physicians, physician assistants, nurse practitioners, and nurse midwives) and pharmacists.

Five-digit ZIP code mapping to study the availability of primary care providers and pharmacists, alone and in combinations, in rural areas and ZIP code-based health professional shortage areas (HPSAs). National averages for annual physician visits for hypertension, asthma, and diabetes were used to estimate the sufficiency of the rural physician supply.

Rural areas of the United States.

In rural areas, all providers were present in lower densities than national averages, particularly in HPSAs. The primary care physician supply was insufficient to meet national averages for office visits for hypertension, asthma, and diabetes. Among available providers, the most prevalent co-presence was primary care physician with pharmacist. HPSAs showed very low physician density (1 per 22,122), and the most prevalent providers were pharmacists. States varied widely in provider density.

Despite longstanding efforts and the expansion of managed care, primary care providers remain in short supply in rural areas, especially ZIP code-based HPSAs. Making the best use of available providers should be encouraged. The continued shortfall of primary care providers in rural areas, particularly HPSAs, makes it logical to use other available providers and combinations to increase health care access. Pharmacists could increase care for patients with conditions treated with medications. Other available providers, based on skills and work site, could also offset shortages.