Ian Lewis

Ian Lewis currently serves as the US Chief of Staff for Precision Medicine at Daiichi Sankyo since April 2025, following a tenure as Senior Director of Companion Diagnostic Project Management at the same company beginning in April 2022. Prior experience includes roles such as Senior Program Manager at BD, Staff Program Manager at Thermo Fisher Scientific, and Program Manager at Invivoscribe. Ian Lewis also held various positions at Illumina from March 2005 to April 2017, culminating in roles as Senior Project Manager and Project Manager. The early career includes a position as Research Associate 1 at Johnson & Johnson from November 2001 to March 2005. Ian Lewis earned a Bachelor’s Degree in Pre-Med and Psychology from Williams College from 1997 to 2001.