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Dr. Walter Stewart

VP, Chief Research Officer at Sutter Health


Buzz Stewart, Chief Research Officer, joined Sutter Health in July 2012. He oversees research organized around Digital Health and Advanced Analytics, Precision Care & Medicine, Clinical Trials, and Rapid Health System Learning. Buzz has transformed the research model at Sutter to be translation focused and strategic in supporting Sutter as a Learning Health Care System. His personal interests span the unique role of health system research in transforming care through predictive analytics, population health management, and digital health. 

Prior to Sutter, Buzz founded the Geisinger Center for Health Research (2003-2012), a research and development unit that participated in Geisinger’s decade long strategy to transform the delivery of health care. Previously, he was a faculty member at the Johns Hopkins Bloomberg School of Public Health (1983-1995), was Vice President of Research and Development at AdvancePCS (1998-2002) and founded several successful start-ups. 

He has published about 400 peer-reviewed articles (h-index>105) and book chapters after receiving his PhD in Epidemiology from Johns Hopkins University, his MPH from UCLA, and his BS in Psychobiology from University of California, Riverside.

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