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Co-Founder & CMIO, HealthTap 
Geoff is HealthTap’s co-founder and Chief Medical Information Officer. He is responsible for the architecture of HealthTap’s Medical Knowledge Base. Prior to joining HealthTap, Geoff served as the Chief Medical Officer and the Executive Vice President of Product Development at ePocrates, as the Chief Medical Officer of Wellsphere, and created the first consumer health site at Healtheon (WebMD). Additionally, Geoff has served as the Chief of Medical Informatics in Emergency Medicine for Harvard University teaching hospital Beth Israel, and on the clinical faculty in Emergency Medicine at Stanford University and UCSD.
Geoff holds a Ph.D. in Medical Computing / Medical Information Science from Stanford University, and an M.D. and B.S. from McGill University, and is board certified in both Internal Medicine and Emergency Medicine.