Dr. Walter "Buzz" Stewart

Chief Research Officer - Sutter Health

Walter (Buzz) Stewart, PhD, MPH, Chief Research Officer, joined Sutter in 2012 and oversees research organized around Digital Health, 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.

Prior to Sutter, Buzz founded the Geisinger Center for Health Research (2003-2012), an R&D unit that participated in Geisinger’s decade long strategy to transform the delivery of health care.  Previously, he launched and successfully transacted a start-up (1990-1998), was a faculty member at the Johns Hopkins Bloomberg School of Public Health (1983-1995), and was Vice President of Research and Development at AdvancePCS (1998-2002). He has conducted extensive research on the work and functional impact of chronic episodic and chronic diseases.

He has published more than 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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