Dr. John Ioannidis holds the C.F. Rehnborg Chair in Disease and Prevention at Stanford University, where he is a professor of medicine, of health research and policy, and of statistics. He is also Director of the Stanford Prevention Center at Stanford University School of Medicine. Before joining Stanford in 2010, Dr. Ioannidis chaired the Department of Hygiene and Epidemiology at the University of Ioannina School of Greece since 1999.
Dr. Ioannidis trained at Harvard and Tufts specializing in internal medicine and infectious diseases before holding various positions at NIH, John Hopkins University School of Medicine and Tufts University School of Medicine.
Dr. Ioannidis' strong interest in large-scale evidence and meta-analysis has lead him to continuously search for new methods for efficient study design and analysis of biomedicine. His 2005 paper in the Public Library of Science Medicine, "Why most Published Research Findings are False," is the most downloaded article in the history of open access publishing. He is one of the most-cited scientists of his generation across all scientific fields worldwide (over 30,000 citations to-date).
As an adjunct professor at the Tufts University School of Medicine, Dr. Ioannidis has also led the Center for Genetic Epidemiology and Modeling of the Tufts Institute for Clinical Research and Health Policy Studies at Tufts Medical Center. He has also held adjunct appointments as professor of epidemiology at the Harvard School of Public Health, and as professor of epidemiology and biostatistics at Imperial College London.
A member of the executive board of the Human Genome Epidemiology Network, Dr. Ioannidis has also served on the board of more than 20 leading international journals including the PLoS Medicine, Annals of Internal Medicine, Clinical Trials and Journal of Clinical Epidemiology. He also serves as the editor-in-chief of the European Journal of Clinical Investigation for the period of 2010-2014.
His publications include over 500 peer-reviewed papers and over 40 book and chapters. He's also given over 200 invited lectures in 28 countries.