American Medical Association Physician Master File

Topic/focus: Demographics
Year(s): 1906 - present
Source: American Medical Association
Study and sample characteristics: Survey
Universe: United States Physicians who are members of the AMA
Variables: ~30 Variables including gender, date of graduation, specialty, etc.
Access: Restricted use
Cost: n/a
Key web links: American Medical Association: About and Licensing
Primary Institutional Contact: EDRC Coordinator (

Summary: Established by the American Medical Association (AMA) in 1906, the Physician Masterfile was initially developed as a record keeping device supporting membership and mailing activities. Since then, the Masterfile has expanded to include significant education, training and professional certification information on virtually all Doctors of Medicine (MD) and Doctors of Osteopathic Medicine (DO) in the United States, Puerto Rico, Virgin Islands, and certain Pacific Islands. The Physician Masterfile includes current and historical data for more than 1.4 million physicians, residents, and medical students in the United States. This figure includes approximately 411,000 graduates of foreign medical schools who reside in the United States and who have met the educational and credentialing requirements necessary for recognition.