Faculty

MICHAEL BAIOCCHI, PhD, is an assistant professor of medicine at Stanford School of Medicine. In March 2014, Dr. Baiocchi joined the Stanford Prevention Research Center following three years as a Stein Fellow in the Department of Statistics in the Stanford School of Humanities and Sciences. He received his BA in Mathematics with Departmental Honors in 2003 from Williams College and his doctoral degree in Statistics from the Wharton School of the University of Pennsylvania.
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SANJAY BASU, MD, PhD, is an assistant professor of medicine at Stanford University and an affiliate of the Stanford Center for Poverty and Inequality. He received his undergraduate training from the Massachusetts Institute of Technology and was a Rhodes Scholar at Oxford before completing his MD and PhD in epidemiology at Yale University.
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CHRISTOPHER D. GARDNER, PhD, is the Director of Nutrition Studies at the Stanford Prevention Research Center and a professor of medicine at Stanford University. He received his PhD in Nutritional Sciences at the University of California, Berkeley in 1993. His postgraduate training included a postdoctoral fellowship in cardiovascular disease epidemiology at Stanford.
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CATHERINE HEANEY, PhD, MPH, is an associate professor (teaching) in the Stanford Prevention Research Center, the Department of Psychology, and the interdisciplinary Program in Human Biology. She received her undergraduate degree from Harvard University and her MPH and PhD in health behavior and health education from the University of Michigan School of Public Health.
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JOHN P.A. IOANNIDIS, MD, DSC, holds the C.F. Rehnborg Chair in Disease Prevention at Stanford University where he is professor of medicine, professor of health research and policy, and director of the Stanford Prevention Research Center at the School of Medicine, and professor of statistics (by courtesy) at the School of Humanities and Sciences. From 1999 until 2010, Dr. Ioannidis chaired the Department of Hygiene and Epidemiology at the University of Ioannina School of Medicine in Greece. He trained at the University of Athens School of Medicine in Greece, Harvard and Tufts, and also held appointments at the U.S. National Institutes of Health, Johns Hopkins, Tufts, Harvard, and Imperial College London.
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ABBY KING, PhD, is professor of Health Research and Policy and of medicine at the Stanford Prevention Research Center. She received her undergraduate degree in psychology at Binghamton University, Binghamton, NY, and her PhD in clinical psychology from Virginia Polytechnic Institute and State University in 1983. She is an internationally respected scientist and award-winning teacher and mentor who has developed, evaluated, and disseminated creative solutions to major public health challenges related to prevention of chronic disease.
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JUDITH (JODI) PROCHASKA, PhD, MPH, is an associate professor of medicine at Stanford University. A clinical psychologist, Dr. Prochaska joined the Stanford Prevention Research Center in July 2012, following eight years as a faculty member at the University of California, San Francisco. Dr. Prochaska received her bachelor's in art degree from Duke University and completed doctoral training in the Joint Doctoral Program in Clinical Psychology at the University of California, San Diego, and San Diego State University, where she also completed a master's degree in public health.
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RANDALL S. STAFFORD, MD, PhD, is the director of the Stanford Prevention Research Center's Program on Prevention Outcomes and Practices. Dr. Stafford received his master's degree in health administration from Johns Hopkins University, his PhD in epidemiology from UC Berkeley, and his medical degree from UC San Francisco, and did his clinical training in primary care internal medicine at Massachusetts General Hospital.
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MARCIA STEFANICK, PhD, is a professor of medicine at the Stanford Prevention Research Center and professor of obstetrics and gynecology. She received a BA in biology from the University of Pennsylvania and obtained her PhD in Physiology at Stanford University. Dr. Stefanick is a leading pioneer in women’s health research and she has been at the forefront of the study of aging in both women and men, including the role of diet and nutritional supplements, physical activity, and body composition on chronic diseases.
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MARILYN WINKLEBY, PhD, is a professor of medicine at the Stanford Prevention Research Center, and faculty director of the Office of Community Health. She received her undergraduate and master’s degrees in social science and clinical psychology from California State University, Sacramento, and earned her master’s degree in public health and PhD in epidemiology from the UC Berkeley School of Public Health. Since then, Dr. Winkleby has combined epidemiologic study with intervention research to shed light on the ways in which social factors impact health.
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Academic Staff

WES ALLES, PhD, is the Director of the Health Improvement Program (HIP) at the Stanford Prevention Research Center (SPRC), where he has championed and advanced community and worksite health promotion for over 20 years. Dr. Alles received his BS from West Chester State University and both a master’s degree in health education and a doctoral degree in health and safety from the University of Illinois.

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LISA HENRIKSEN, PhD, is a senior research scientist at the Stanford Prevention Research Center (SPRC). She received both her bachelor of arts and doctoral degrees from Stanford University, with doctoral training in communication theory and developmental psychology. Before joining SPRC, Dr. Henriksen was a faculty member at Rutgers University in the School of Communication, Information, and Library Studies, where she earned the university’s highest award for excellence in teaching.
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MICHAELA KIERNAN, PhD, is a senior research scientist at the Stanford Prevention Research Center (SPRC). Dr. Kiernan’s research focuses on the design of behavioral interventions that promote long-term lifestyle changes and weight management among subgroups at risk. Her research also focused on methodological and statistical innovations that improve the design, delivery, and analysis of randomized clinical trials including the recruitment of ethnic minorities into clinical trials.
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