William H. Shrank, M.D.

Dr. Shrank has been a venture partner to the Bio + Health team of Andreessen Horowitz, a private venture capital firm, since January 2023. He previously served as Chief Medical Officer of Humana Inc., a leading care delivery and health plan administration company, from April 2019 to August 2022. In this role, 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 its members.

Prior to joining Humana, Dr. Shrank served as Chief Medical Officer, Insurance Services Division, of the University of Pittsburgh Medical Center (UPMC) from April 2016 to February 2019. From 2013 to 2016, Dr. Shrank held several positions with CVS Health Corporation, including Senior Vice President, Chief Scientific Officer, and Chief Medical Officer of Provider Innovation. 

He also previously worked for the Center for Medicare and Medicaid Innovation, part of the Centers for Medicare and Medicaid Services (CMS), as Director, Research and Rapid-Cycle Evaluation Group.

Dr. Shrank began his career as a practicing physician with Brigham and Women’s Hospital in Boston, Mass. and as an assistant professor at Harvard Medical School. He received his B.A. in Psychology from Brown University and an M.D. from Cornell University Medical College. He also holds a M.S. in Health Services from the University of California, Los Angeles.