Dr. Tadataka (Tachi) Yamada is currently a Venture Partner with Frazier Healthcare Partners and Chairman of the Board of Directors at Prometheus Biosciences. Prior to joining Frazier, he was Executive Vice-President, Chief Medical and Scientific Officer and a Board Member of Takeda Pharmaceuticals. He was formerly President of the Bill & Melinda Gates Foundation Global Health Program. In this capacity he oversaw grants totaling over $9 billion in programs directed at applying technologies to address major health challenges of the developing world including TB, HIV, malaria and other infectious diseases, malnutrition and maternal and child health. He was previously Chairman of R&D at GlaxoSmithKline and before that Chairman of the Department of Internal Medicine and Physician-in-Chief at the University of Michigan Medical Center.