History is the essence of innumerable biographies.

~ Thomas Carlyle

The following biographies highlight the men and women who over time have contributed to the establishment, growth and development of the physician assistant profession. These are individuals whose contributions have helped shape the way physician assistants are educated, utilized, organized, evaluated, promoted and integrated into the American Health Care System and throughout the world.

To appear in this biographical section, a nominee must have made a contribution or contributions to the physician assistant profession judged to be significant in a way that is unique, pioneering or exemplary. The nature of those contributions may include, but need not be limited to, the following:

  • Helped develop the educational, accreditation, legal and certification framework that is unique to the PA profession
  • Contributed significant time, labor and leadership to a national organization thus enabling that organization to serve the best interest of PAs, PA educators and students
  • Authored books or articles that added significantly to the body of published works on physician assistants and the delivery of health care by teams
  • Recognized by peers in the health professions as one who has provided exemplary clinical, community and humanitarian service through special recognition awards and published acknowledgments
  • Served on health policy making bodies, work force study groups, international health alliances and health-related agencies to share with others knowledge about the PA profession
  • Made significant contributions to the education and mentoring of PA students and the continuing education and evaluation of graduate physician assistants
  • Pioneered the development of a new field for physician assistants in a health care specialty or practice setting

Please submit the following documentation to the PAHx for consideration: a CV or resume, or a completed Biographical Sketch Form. Please Contact us us should you have an individual who you believe should be recognized by the Society.


R. Scott Chavez, PA, PhD

Scott Chavez's (1949-2013) significant and long-time contributions to the physician assistant profession and correctional health care have earned him wide recognition as one of the key health care professionals in the nation dedicated to improving health care delivery. His selfless involvement in numerous

Elizondo, Epifanio (Epi)

Before he retired, Rear Admiral Epifanio (Epi) Elizondo was a U.S. Assistant Surgeon General in the Commissioned Corps of the U.S. Public Health Service. He served as the Regional Health Administrator for Region VI (TX, NM, OK, AR, and LA) and reported to the Assistant Secretary for Health. As the Regional Health Administrator, he provided guidance and assistance to States...

Erasmo Riojas, PA

Erasmo “Doc” Riojas (August 1931 - ), PA, was born in Dolores, Texas. Twenty-two years of medical experience in the US Navy and as a Registered Nurse preceded Mr. Riojas’s decision to become a physician as


Benjamin Olmedo MMSc, PA-C

Benjamin Olmedo MMSc, PA-C is a Class of 2011 alumni of the Yale School of Medicine Physician Associate Program and earned a B.S. in Biological Sciences from California Polytechnic State University, San Luis Obispo in 2002. Olmedo completed his undergraduate studies through an R.O.T.C.