NOTE: Numbers are estimates based on the number of certifications issued, and may not accurately reflect the number of currently practicing physicians.
aNumber includes resident members and excludes retired members.
bNumber includes resident members.
cNumber includes medical student and resident members.
SOURCES: Number of Board-certified physicians comes from the American Board of Medical Specialties (ABMS, 2004a) and the American Board of Internal Medicine (ABIM, 2005); professional organization membership (limited to physicians of the specified type who may care for adult cancer survivors, in the United States, when possible) comes from: American Society of Clinical Oncology (Personal communication, D. Lopez, ASCO, June 22, 2005); American Society of Breast Surgeons (2005); American Society of Hematology (Personal communication, G. Aklilu, ASH, July 27, 2005); Society of Gynecologic Oncologists (Personal communication, R. Benkert, SGO, January 26, 2005); American Society of Therapeutic Radiation Oncologists (ASTRO, 2002, 2004); Society of Surgical Oncology (Personal communication, R. Slawny, SSO, April 15, 2005); American Urological Association (AUA, 2005); American College of Obstetricians and Gynecologists (Personal communication, C. Flood, ACOG, April 15, 2005); American Society of Colon and Rectal Surgeons (ASCRS, 2005); American College of Physicians (ACP, 2005a); American Society for Therapeutic Radiology and Oncology (Personal communication, S. Smith, ASTRO, June 21, 2005); Society of Thoracic Surgeons (Personal communication, A. Ticoalu, STS, June 23, 2005); American Academy of Family Physicians (AAFP, 2005).