Directory of Physicians (MD/DO)
- William Adkins, MD
- William Adler, MD
- William Adler, MD
- William Adler, MD
- William Admire, MD
- William Adrion, MD
- William Adsit, MD
- William Aeschliman, MD
- William Affolter, MD
- William Agel, MD
- William Agerton, MD
- William Agger, MD
- William Agudelo, MD
- William Aherne, MD
- William Ahlenius, MD
- William Ahn, MD
- William Ahnn, MD
- William Ahrens, MD
- William Ahrens, MD
- William Ahuna, MD
- William Aibinder, MD
- William Aierstok, MD
- William Aigner, MD
- William Ainslie, MD
- William Ainsworth, MD
- William Aird, MD
- William Aitken, MD
- William Akard, MD
- William Akin, MD
- William Akrawi, MD
- William Alago, MD
- William Alarcon, MD
- William Albergotti, MD
- William Albers, MD
- William Albers, MD
- William Albert, MD
- William Albert, MD
- William Alberts, MD
- William Albiero, MD
- William Albrecht, MD
- William Albright, MD
- William Albright, MD
- William Alcott, MD
- William Alday, MD
- William Alden, MD
- William Alder, MD
- William Alderisio, MD
- William Aldred, MD
- William Aldrich, MD
- William Alemany-Enriquez, MD