Stephen A. Berger, M.D. is affiliated with the Tel Aviv Medical Center, where he has served as Director of both Geographic Medicine and of Clinical Microbiology. He also holds an appointment as Associate Professor of Medicine at the University of Tel-Aviv School of Medicine. Dr. Berger co-founded GIDEON Informatics, developers of the GIDEON (Global Infectious Diseases and Epidemiology Network) web app and the GIDEON series of ebooks

He received his B.A. from Brooklyn College in New, and M.D. from New York Medical College. Following Internal Medicine residency training at the New York Medical College Hospitals, he served as a Medical Officer in the U.S. Navy 6th Fleet and St. Albans Hospital. He subsequently completed fellowships in Infectious Diseases at the Montefiore / Einstein complex in New York, Tufts-New England Medical Center in Boston, and the New York V-A Hospital; Clinical Microbiology at Montefiore Hospital; and Operational Methods as a W.H.O. trainee in Brussels, Belgium. He is Board-Certified in both Infectious Diseases and Clinical Microbiology; a Fellow of the American College of Physicians; and a recipient of the Certificate of Knowledge in Clinical Tropical Medicine from the American Society of Tropical Medicine and Hygiene.

Dr. Berger has published a series of 424 e-books (120,000 pages) on Geographic Medicine, in addition to 180 standard books and professional papers. He is regarded as one of the foremost experts in his field, and continues to write and lecture widely in the fields of Infectious Diseases, Clinical Microbiology, Geographic Medicine and Computer Expert Technology.