Dr. Alexander has been the Scientific and Medical Advisor for the diaTribe Foundation since 2021 and has been a volunteer since 2016. He has also provided consulting services to pharmaceutical, medical device and other companies since 2016. Dr. Alexander is an endocrinologist who has more than 40 years of experience in diabetes, both direct patient care and research. Dr. Alexander retired from Merck in 2015 after 23 years in both Outcomes Research and Medical Affairs. Prior to joining Merck, he practiced diabetes, endocrinology, and internal medicine in Los Angeles for ten years and was Clinical Professor of Medicine at the Keck School of Medicine of the University of Southern California (KSOM/USC). He has been a member of Penn Medicine’s Institute for Diabetes, Obesity and Metabolism (IDOM) Leadership Council since 2015. In addition, he also served as a consultant in diabetes and endocrinology at the HealthLink Medical Clinic, Southampton, Pennsylvania from 2010-2015. He was a member of the board of directors of the Eastern Pennsylvania & Delaware Chapter of the American Diabetes Association 2012-2018. Dr. Alexander received his medical degree from KSOM/USC where he also did his postgraduate training in internal medicine and diabetes/endocrinology. He is the author of numerous scientific articles and a frequent reviewer for medical journals.