Will Shrank

William Shrank, MD

Venture Partner, a16z

Dr. William Shrank is a venture partner on the a16z Bio + Health team.

Will was most recently Humana’s Chief Medical Officer. His responsibilities included implementing Humana’s integrated care delivery strategy, with an emphasis on advancing the company’s clinical capabilities and core objective of improving the health outcomes of our members. He also led Humana’s Care Delivery Organization, clinical operations, and the Bold Goal population health strategy. Will previously held the position of Chief Medical and Corporate Affairs Officer (July 2019-July 2021) during which time he oversaw government affairs. He is a member of the Management Team, which sets the firm’s strategic direction, and reports and to President and Chief Executive Officer Bruce Broussard.

Will joined Humana as Chief Medical Officer in April 2019, having previously been employed by the University of Pittsburgh Medical Center (UPMC) where he served as Chief Medical Officer, Insurance Services Division from 2016 to 2019. At UPMC, Will was responsible for clinical operations, policy and quality for approximately 3.5 million members in Medicare, Medicaid, behavioral health, Managed Long Term Social Supports and commercial lines of business. He also developed and evaluated population health programs to further advance the medical center’s mission as an integrated delivery and financing system.

Previously, Will served as Senior Vice President, Chief Scientific Officer, and Chief Medical Officer of Provider Innovation at CVS Health from 2013 to 2016. Prior to joining CVS Health, he served as Director, Research and Rapid-Cycle Evaluation Group, for the Center for Medicare and Medicaid Innovation, part of the Centers for Medicaid and Medicare Services (CMS) from 2011 to 2013, where he led the evaluation of all payment and health system delivery reform programs and developed the rapid-cycle strategy to promote continuous quality improvement.

Will began his career as a practicing physician with Brigham and Women’s Hospital in Boston and as an Assistant Professor at Harvard Medical School. His research at Harvard focused on improving the quality of prescribing and the use of chronic medications. He has published more than 250 papers on these topics.
Will received his MD from Cornell University Medical College. He completed his residency in internal medicine at Georgetown University and his fellowship in health policy research at the University of California, Los Angeles. He also earned a Master of Science degree in health services from the University of California, Los Angeles and a bachelor’s degree from Brown University.