Board of Directors

William Alexander, MD, FACP

William Alexander, MD, FACP, is a nationally recognized health care quality leader with a lengthy career as an administrator and in academia. He is currently President of Alexander Healthcare Consulting, LLC., where he provides consulting services on healthcare quality improvement, health equity, population health, and clinical quality strategy to health plans. He was formerly the Plan Performance Medical Director at Amerigroup Community Care of Georgia, an Elevance Health company, where he oversaw the health care of Amerigroup Georgia’s 574,000 members and served as the principal medical manager and policy advisor to the health plan.

A board-certified internal medicine and infectious disease physician, Dr. Alexander has served as a member of the Infant Mortality Task Force of the Georgia Department of Public Health, and the Georgia Maternal Mortality Review Committee. He also serves on the Advisory Board of the Institute of Health Administration at Georgia State University.

Dr. Alexander was a member of the Georgia Medicaid Credentialing Committee, and the Georgia Department of Community Health’s Medical Care Advisory Committee. He is a member of the American College of Physician Executives.

Before joining Amerigroup, Dr. Alexander served as Vice President of Administration and Strategic Management and was the Senior Advisor to the President and Assistant Dean for Health Care Quality at Morehouse School of Medicine. Previously, Dr. Alexander served as National Quality Medical Director for Cigna HealthCare, where he developed the company’s clinical quality strategy.

Thomas J. Betlach

Tom Betlach joined Speire as a partner to advise government and private sector clients on complex health policy and strategic initiatives. He is a nationally-recognized thought leader on Medicaid and health care policy, known for his expertise in serving complex populations, delivery system transformation, value-based purchasing, managed care and cost containment. Prior to joining Speire, Tom spent 27 years serving in a variety of leadership roles for the state of Arizona. He served five different governors in three different cabinet positions.

Most recently, Tom served as director of the Arizona Health Care Cost Containment System (AHCCCS), Arizona’s state Medicaid agency, where he reported directly to the governor. AHCCCS provided health care coverage to 1.9 million Arizonans at an annual cost of $13 billion.

Mr. Betlach is former President of the National Association of Medicaid Directors. He is also a board member for Circle the City and Mutual Insurance Company of Arizona. Mr. Betlach earned his BA degree in Political Science from the University of Wisconsin and his MPA from the University of Arizona.

Asaf Bitton, MD, MPH

Dr. Bitton is Executive Director of Ariadne Labs at Brigham and Women’s Hospital and the Harvard T.H. Chan School of Public Health. His extensive experience in primary care policy includes significant contributions to the design and testing of major primary care initiatives at the Center for Medicare and Medicaid Innovation. He was a core founder and vice chair of the steering committee for the Primary Health Care Performance Initiative, a partnership that includes more than 30 countries, World Bank, World Health Organization, UNICEF, The Global Fund, the Bill & Melinda Gates Foundation, and others, all dedicated to improving global primary health care. Dr. Bitton is an elected member of the International Academy of Quality and Safety.

Anne B. Docimo, MD, MBA

Dr. Anne Docimo is chief medical officer of UnitedHealthcare, responsible for the clinical, cost and experience outcomes of more than 45 million members in UnitedHealthcare’s Commercial, Medicare and Medicaid health plans. Dr. Docimo collaborates with each line of business to design and direct evidence-based, data-driven strategies that support clinical and business goals, partnering with internal and external stakeholders to develop high-value programs and interventions that help the health care system work better for all.

As CMO, Dr. Docimo leads core enterprise functions including Medical Policy, Medical Management, Care Management, Clinical Program Design and Evaluation, Clinical Operations, Value-Based Care and Accountable Care Organizations, Clinical Appeals & Grievances, and National and Market-Level Chief Medical Officer teams. Dr. Docimo is a member of the UnitedHealthcare Executive Council and chairs UnitedHealth Group’s Clinical Systems Governance Committee, guiding the development of clinical technology platforms, capabilities, applications, and data models.

Dr. Docimo has served as a physician leader and business executive in both provider and payer organizations for more than 20 years, bringing clinical, technology and data expertise to design and implement programs that improve clinical and financial outcomes. Before joining UnitedHealthcare in 2019, Dr. Docimo served as Executive Vice President for Population Health and Chief Clinical Transformation Officer at Jefferson Health, Chief Medical Officer for Thomas Jefferson University Hospitals, President of Jefferson University Physicians, and Professor of Emergency Medicine at Thomas Jefferson University. Prior to her time at Jefferson, Dr. Docimo was Chief Medical Officer for UPMC Health Plan and Senior Medical Director for the UPMC Hospital Division – leading medical management, clinical programs, quality initiatives and the clinical pharmacy service line across both the UPMC payer and provider divisions.

John Glaser, PhD, Chair

John is an Executive-in-Residence at the Harvard Medical School Executive Education. Previously he was chief executive officer of Siemens Health Services. Prior to Siemens, John was chief information officer at Partners HealthCare.

John was the founding chair of the College of Healthcare Information Management Executives and the past-president of the Healthcare Information and Management Systems Society. He is the former Chair of the Global Agenda Council on Digital Health, World Economic Forum. He is former Senior Advisor to the Office of the National Coordinator for Health Information Technology.

He has authored many articles and books on the strategic application of IT in health care. He is on the faculty of the UTHealth School of Biomedical Informatics and the Harvard School of Public Health. Previously he was on the faculty of the Wharton School at the University of Pennsylvania.

Julie V. Murchinson

Julie V. Murchinson is a Partner with Transformation Capital, a growth equity fund focused exclusively on digital health. She built and led Health Evolution, the industry’s premier convening company that connects the health care industry’s most influential leaders to inspire forward-thinking strategies and scalable solutions that drive health. Ms. Murchinson was also Managing Director at Manatt Health Solutions, the policy and strategy advisory division of Manatt, Phelps and Phillips. She holds a BA from Franklin & Marshall College and an MBA from The Wharton School at the University of Pennsylvania.

Geoffrey Neimark, MD

Dr. Geoffrey Neimark is Chief Medical Officer at Community Care Behavioral Health, where he provides oversight for multiple teams including physicians, psychologists, quality management, value based purchasing and pharmacy, and is responsible for Community Care’s medical and quality operations. He was previously Chief Medical Officer of Community Behavioral Health in Philadelphia, Pennsylvania.

Dr. Neimark completed his undergraduate work at Haverford College and received his medical degree from SUNY Downstate, where he graduated Summa Cum Laude and was elected to AOA. He completed his residency, including a role as Chief Resident, at the University of Pennsylvania. Dr. Neimark has completed additional training in adult psychoanalysis and continues to have a small practice. He was inducted as a fellow at the Philadelphia College of Physicians and serves on the clinical faculty at both the University of Pennsylvania and Drexel University.

J. Marc Overhage, MD, PhD

J. Marc Overhage, MD, PhD is an experienced health care executive with a proven track record in leading digital health transformations across significant health care organizations.

In his professional experience, Dr. Overhage has held significant roles such as Staff Vice President for Health Informatics and Data Architectures at Elevance Health, Vice President of Strategic Intelligence and Chief Medical Information Officer at Cerner Corporation, and Founding CEO of the Indiana Health Information Exchange. He also co-founded TriaAxia Health, a startup that combines clinical and genomic data to support biopharma and life science companies.

Dr. Overhage has also contributed to national health information technology (HIT) policy through service on federal advisory committees and influential national organizations. His leadership roles in key organizations, including the Health Information Management Systems Society (HIMSS), Health Level Seven International (HL7), and the American Medical Informatics Association (AMIA), exemplify his commitment to enhancing health IT.

He holds a doctorate in Biophysics and completed medical training at Indiana University School of Medicine, followed by an internship, residency, and fellowship in General Internal Medicine (medical informatics).

Jaewon Ryu, MD, JD

Jaewon Ryu, MD, JD, is the CEO of Risant Health, after having served as the President and CEO of Geisinger, its inaugural member organization. Risant Health is a nonprofit organization created by Kaiser Permanente to expand and accelerate the adoption and success of value-based care in diverse, multi-payer, multi-provider, health system environments across the country. By doing so, it seeks to improve the health of the communities it serves, achieve better health outcomes and improve health care affordability.

Dr. Ryu came to Geisinger in 2016 from Humana, where he was responsible for the company’s care delivery functions and capabilities, and previously, he held various leadership roles at the University of Illinois Hospital & Health Sciences System, Kaiser Permanente, and in government at the Centers for Medicare & Medicaid Services and as a White House Fellow placed at the Department of Veterans Affairs. He started his career as a practicing corporate healthcare attorney.

Dr. Ryu recently completed a full, two-term stint (2018-2024) on the Medicare Payment Advisory Commission (MedPAC), a body legislatively tasked with advising Congress on policies governing health plans and providers serving Medicare beneficiaries. Currently, he serves on the boards of various organizations, including the National Committee for Quality Assurance (NCQA), the Commonwealth Fund and the KP Medical Foundation.

William Shrank, MD, MSHS

Dr. Shrank is a Venture Partner at Andreesen Horowitz. He was previously the Chief Medical Officer at Humana, where he lead and implemented the company’s integrated care delivery strategy affecting 16 million Humana plan members. During his tenure, he lead Humana’s senior focused primary care business, clinical operations, population health strategy, health equity and government affairs teams. Previously, Dr. Shrank held leadership positions at UPMC Health Plan, CVS Health, and Center for Medicare & Medicaid Innovation at CMS. He began as a practicing physician with Brigham Internal Medicine Associates at Brigham and Women’s Hospital in Boston and as an assistant professor at Harvard Medical School, researching medication prescribing and adherence.

Susan Stuard

Susan Stuard is a Director at the Center for Evidence-based Policy at OHSU where she helps states to evaluate policy changes by facilitating stakeholder input processes, developing and analyzing policy frameworks, translating evidence into policy outcomes, and helping states create strategies and decision-tools to enable change. From 2008 to 2015, Ms. Stuard led THINC, the not-for-profit convening organization focused on health care quality and primary care transformation in the Hudson Valley region of New York. Prior to THINC, she was the Director for Technology Policy development at the New York-Presbyterian Hospital and the Vice President of Regulatory Affairs for the Greater New York Hospital Association. Ms. Stuard holds an MBA from the Yale School of Management.

Lynn Todman, PhD

Dr. Todman is Vice President of Health Equity Strategies at Corewell Health in Michigan where she supports efforts to set the strategic direction and priorities of health equity activities across an integrated health care system. She has held teaching and research positions at institutions worldwide, including the University of Milan, the Royal Institute of Technology and the Massachusetts Institute of Technology. Dr. Todman is a Robert Wood Johnson Foundation Culture of Health Leader and a member of the Founding Advisory Board of the Global Institute of Health Equity at the Meharry Medical College. Dr. Todman earned a BA from Wellesley College, a Master’s in City Planning (MCP), and a PhD in Urban and Regional Planning from the Massachusetts Institute of Technology.

Thomas Tsang, MD, MPH

Dr. Tsang is founding CEO and current Chief Strategy Officer of Valera Health. An experienced leader in mental health, he is also the former Chief Medical Officer at Healthcare Services and Solutions, a Merck wholly owned subsidiary. Prior to Merck, he was part of the team that crafted the Affordable Care Act through the Robert Wood Johnson Foundation/Institute of Medicine Health Policy Fellowship. As Medical Director at the Office of the National Coordinator for HIT, Dr. Tsang contributed to the development of ACO regulations and a national framework for the use of health information technology and electronic health records to improve coordination and quality.

Sara Vaezy

Sara Vaezy is Executive Vice President and Chief Strategy and Digital Officer for Providence where she is responsible for system strategy and digital innovation for the integrated delivery network (IDN) which includes 52 hospitals and 1,085 clinics and serves over 5 million unique patients.

Sara brings deep experience to the organization in both digital and enterprise strategy development and leads system strategy, the ongoing development and evolution of Providence’s integrated strategic and financial plan and cross-collaboration of the Providence councils as Providence continues to advance toward and design the system of the future. Sara is the architect of the Providence digital innovation model upon with the Digital Innovation Group (DIG) was founded, resulting in company partnerships and incubation of technologies that deliver value for Providence as well as other health systems.

Sara is active in the broader healthcare industry serving as an NCQA Board Director, as a member of inaugural class of the Frist Cressey Ventures Collective, a Harvard Executive Education Faculty Member, a Health Evolution Forum Fellow, World 50 Digital 50 member, a Forbes Business Council Member, and a board observer for DexCare. She has won numerous awards and has been recognized as a Business Insider 30 under 40 Transforming the Future of Healthcare (2019), Catholic Health Association Tomorrow’s Leader (2019), a Becker’s Rising Star in Health IT (2020), and a Becker’s Women to Watch in Health IT (2020 & 2022).

She holds an MHA and an MPH in Health Policy from the University of Washington School of Public Health and BAs in Physics and Philosophy from the University of California, Berkeley.