Ravi Thadhani MD, MPH is the Vice Dean for Research and Graduate Research Education at Cedars-Sinai Medical Center in Los Angeles, California. Formerly he was Professor of Medicine at Harvard Medical School and Chief of Nephrology at Massachusetts General Hospital, and Executive Director of the Clinical Trials Office at Partners Healthcare in Boston. Dr. Thadhani has two major areas of interest: medical complications of pregnancy (preeclampsia and gestational diabetes) and vitamin D metabolism. His goals are to translate biological discoveries into novel diagnostics and therapies for humans. In the area of preeclampsia, his collaborations with basic scientists have led to novel diagnostic tests now available in Europe and are being tested in the U.S., and of late, first-in-human clinical trials to prolong pregnancy in women with severe preterm preeclampsia. In the area of vitamin D metabolism, he has performed observational studies, collaborated with basic scientists in animal experimental studies, and translated these findings to multinational randomised trials to test several hypotheses in humans. More recently, he and collaborators put forward another paradigm-changing concept related to bioavailable vitamin D, potentially changing our view of who truly is vitamin D deficient. Dr. Thadhani has mentored several fellows and junior faculty members, all of who have had a strong track record of publications and grant support, and many of who are on faculty at leading institutions around the country. Dr. Thadhani has served as a reviewer for and has published in several journals including New Engl J Med, J Am Med Assoc, Lancet, Proc Natl Acad Sci, Circulation, J Am Soc Nephrol, and Kidney Int. He is an inducted member into the American Society of Clinical Investigation, the American Epidemiology Society and the Association of American Physicians. He is the recipient of numerous awards and honours including the Alumni Award of Merit from the Harvard School of Public Health and the Harold Amos Faculty Diversity Award, Harvard Medical School.