Infectious Diseases Advisor

PPD maintains relationships with global thought leaders who provide added insight and consultation on scientific issues related to infectious disease programs.

To compliment our strong scientific and operational teams, PPD provides additional expert guidance on infectious disease studies through our relationship with:

William O’Riordan, M.D.

Chief Medical Officer and Board Member, eStudySite

Dr. William O’Riordan offers clients depth of knowledge and expertise stemming from 30 years of experience in emergency medicine and 19 years of clinical investigation at Paradise Valley Hospital in National City, Calif., and Sharp Chula Vista Medical Center in Chula Vista, Calif. Serving as principal investigator for both facilities, Dr. O’Riordan has directed more than 70 studies, including complicated skin and skin structure infections (cSSSIs), stroke, acute myocardial infarction, unstable angina, sepsis, septic shock, pneumonia, hepatitis C, genomic studies and more.

His experience includes serving as principal investigator on more than 11 cSSSI trials. He has also served as chief of staff at Paradise Valley Hospital and as president of the American College of Emergency Physicians in California.

Dr. O’Riordan received his medical degree from the University of Kansas School of Medicine.