title: When Do Primary Care Physicians Retire? Implications for Workforce Projections.
abstract: Retirement of primary care physicians is a matter of increasing concern in light of physician shortages. The joint purposes of this investigation were to identify the ages when the majority of primary care physicians retire and to compare this with the retirement ages of practitioners in other specialties.
  
  
  
  This descriptive study was based on AMA Physician Masterfile data from the most recent 5 years (2010-2014). We also compared 2008 Masterfile data with data from the National Plan and Provider Enumeration System to calculate an adjustment for upward bias in retirement ages when using the Masterfile alone. The main analysis defined retirement as leaving clinical practice. The primary outcome was construction of a retirement curve. Secondary outcomes involved comparisons of retirement interquartile ranges (IQRs) by sex and practice location across specialties.
  
  
  
  The 2014 Masterfile included 77,987 clinically active primary care physicians between ages 55 and 80 years. The median age of retirement from clinical activity of all primary care physicians who retired in the period from 2010 to 2014 was 64.9 years, (IQR, 61.4-68.3); the median age of retirement from any activity was 66.1 years (IQR, 62.6-69.5). However measured, retirement ages were generally similar across primary care specialties. Females had a median retirement about 1 year earlier than males. There were no substantive differences in retirement ages between rural and urban primary care physicians.
  
  
  
  Primary care physicians in our data tended to retire in their mid-60s. Relatively small differences across sex, practice location, and time suggest that changes in the composition of the primary care workforce will not have a remarkable impact on overall retirement rates in the near future.
authors.affiliation: Robert Graham Center, Policy Studies in Family Medicine and Primary Care, Washington, DC spetterson@aafp.org.
authors.forename: Stephen M
authors.initials: SM
authors.lastname: Petterson
authors.affiliation: Office of Continuing Medical Education and Professional Development, University of New Mexico School of Medicine, Albuquerque, New Mexico.
authors.forename: William F
authors.initials: WF
authors.lastname: Rayburn
authors.affiliation: Robert Graham Center, Policy Studies in Family Medicine and Primary Care, Washington, DC.
authors.forename: Winston R
authors.initials: WR
authors.lastname: Liaw
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D016208:Databases, Factual; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D058007:Physicians, Primary Care / Q000706:statistics & numerical data / Q000600:supply & distribution* / Q000639:trends; D012179:Retirement / Q000706:statistics & numerical data* / Q000639:trends; D017678:Sex Distribution
keywords: age factors; clinical medicine; primary care; primary care physicians; retirement