Tom Williams


Mr. Williams joined Stanford Health Care in January 2015 as Vice-President and General Manager of Accountable Care. He is responsible for the growth and operation of Stanford Health Care Advantage, a Medicare Advantage health plan and Stanford Health Care Alliance, an ACO product offering for the self-insured employer market. He is also responsible for Affinity Medical Solutions, which manages claims payment, network and utilization management, regulatory compliance and the financial performance of Stanford Health Care product offerings and “at risk” managed care contracts.

Prior to joining Stanford Health Care, Mr. Williams successfully led the Integrated Healthcare Association (IHA), a California leadership group with balanced representation from major health plans, hospital systems, physician organizations and other healthcare stakeholders. In his role as CEO, Mr. Williams was responsible for management of a broad range of programs and initiatives, including its nationally recognized quality measurement and pay-for-performance program, value-based payment pilots, efforts to enhance the adoption of health information technology and a variety of initiatives to improve healthcare affordability. He also served as principal investigator or research associate in several IHA grant funded research studies.

Mr. Williams’ professional career includes extensive executive-level experience in medical group management, managed healthcare, and health insurance, including 15 years as a senior executive at Aetna. He served as President, West Region during his last six years at Aetna. He has led the development of many HMO and related start-ups, post-merger integration activities and served on numerous private company and non-profit boards involved in healthcare and the environment.

Mr. Williams received a bachelor of science in biology from the University of California at Santa Barbara, earned master’s degrees in business administration and public health from the University of Hawaii, and a doctoral degree in public health at the University of California at Berkeley.