Table 1.

Number of All Active Physicians (MD and DO) in the United States in 2004 Including Medical Residents

Characteristic	Family Physicians and General Practitioners	All Generalist Physicians*	Subspecialists	Total
Note: Graduate Medical Education National Advisory Committee definition includes all active physicians (resident calculated = 0.35 physician).
MD = doctor of medicine; DO = doctor of osteopathy.
* Family medicine, general practice, general internal medicine, and general pediatrics.
Reprinted with permission from Green et al.¹³
Physicians in specialty	106,101	268,809	510,963	779,772
Population per physician	2,765.2	1091.4	574.2	376
Physicians per 100,000 people	36.2	91.6	174.2	265.8