World Bank Group, Gates Foundation, World Health Organization. MD with residency, fellowship, clinical sub-specialty training, and postdoctoral studies in computer science. Formerly: Deputy Director Global Development, Bill & Melinda Gates Foundation; Macroeconomics & Health lead, WHO; practitioner in the developing world; positions in tech/health/finance. Currently: Senior Adviser to Dr. Jim Yong Kim and Director of President's Delivery Unit. Author of numerous publications. Young Global Leader, World Economic Forum. Executive Board American Medical Association Foundation.