Graham Center Policy One-Pager

Historic Growth Rates Vary Widely Across the Primary Care Physician Disciplines



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Am Fam Physician. 2013 Oct 1;88(7):online.

Nested within a 40-year trend of specialty-to-population growth outpacing that of primary care is variability in the rate of expansion within the different primary care disciplines.1 With continued population aging trends, low annual birth rate, and expected health insurance expansion, it is vital that physician workforce policy be aimed at meeting population needs to deliver optimal primary care.

Family medicine, general internal medicine, and general pediatrics comprise the majority of the primary care physician workforce in the United States. To better understand trends in the primary care physician workforce, we have examined the growth of family physicians, general pediatricians, and general internists providing direct patient care (see accompanying figure).

Figure.

Primary care physician workforce growth per target population.

note: Each primary care specialty is denominated by its target population: General practice/family medicine denominated by entire population, general internal medicine denominated by adult population (19 years and older), and pediatrics denominated by child population (younger than 19 years). Data from American Medical Association Physician Masterfile (2000 to 2010), Area Resource File (1980 to 2000), and U.S. Census (1980 to 2010).

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Figure.

Primary care physician workforce growth per target population.

note: Each primary care specialty is denominated by its target population: General practice/family medicine denominated by entire population, general internal medicine denominated by adult population (19 years and older), and pediatrics denominated by child population (younger than 19 years). Data from American Medical Association Physician Masterfile (2000 to 2010), Area Resource File (1980 to 2000), and U.S. Census (1980 to 2010).


Figure.

Primary care physician workforce growth per target population.

note: Each primary care specialty is denominated by its target population: General practice/family medicine denominated by entire population, general internal medicine denominated by adult population (19 years and older), and pediatrics denominated by child population (younger than 19 years). Data from American Medical Association Physician Masterfile (2000 to 2010), Area Resource File (1980 to 2000), and U.S. Census (1980 to 2010).

The physician-to-population ratio among all primary care physicians has increased consistently for at least the past three decades. The family medicine and general internal medicine physician-to-target population ratios have shown small incremental growth, whereas the general pediatrician-to-target population ratio has increased more and at a steeper rate. The aging population, declining medical student interest in primary care,2 and increased interest in hospitalist careers3 portend a likely crisis for the adult primary care workforce to provide accessible, comprehensive care to those in need. The increase in general pediatricians has greatly outpaced a declining annual birth rate with a continued need for pediatric subspecialists.4 Insurance expansion under the Affordable Care Act will cover several million more children, but also will cover millions more adults—many with pent-up demands for care, and most located in underserved areas.

Primary care workforce need projections are more complex than ever, with smaller patient panel sizes reflective of medical home tenets, increasing part-time work, and career shifts away from full-time direct patient care.5 Policy efforts directed toward further characterization of the unique, individual contributions of the primary care specialties to the delivery of optimal primary care, coupled with the alignment of appropriate workforce production, could help improve access to primary care for millions of patients in the United States.

Author disclosure: No relevant financial affiliations.

The information and opinions contained in research from the Graham Center do not necessarily reflect the views or the policy of the AAFP.


Policy One-Pagers are available from the Graham Center at http://www.graham-center.org.

REFERENCES

1. Makaroff LA, et al. Trends in physician supply and population growth. Am Fam Physician. 2013;87(7). http://www.aafp.org/afp/2013/0401/od3.html. Accessed June 10, 2013.

2. Hauer KE, et al. Factors associated with medical students' career choices regarding internal medicine. JAMA. 2008;300(10):1154–1164.

3. Kuo YF, et al. Growth in the care of older patients by hospitalists in the United States. N Engl J Med. 2009;360(11):1102–1112.

4. Freed GL, et al. Oversimplifying primary care supply and shortages. JAMA. 2009;301(18):1920–1922.

5. US Department of Health and Human Services. Health Resources and Services Administration. Bureau of Health Professions. December 2008. The physician workforce: projections and research into current issues affecting supply and demand. http://bhpr.hrsa.gov/healthworkforce/reports/physwfissues.pdf. Accessed June 10, 2013.



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