Afia Asamoah, JD is a strategic technology leader and senior executive with over 15 years experience guiding companies at the convergence of technology and healthcare, during dynamic periods of innovation and transformation. In 2021, she co-founded Waymark to focus on improving care delivery to people with Medicaid benefits, combining her interests in focusing innovation to improve health care to underrepresented and lower income populations. She currently leads the legal, security, and compliance functions.

Before Waymark, she led a global team of lawyers advising on the development of AI enabled healthcare  technology as a member of the executive management team of Google Health. In 2020, Afia was chosen by Fierce Healthcare as one of the top 10 influential minority healthcare executives. She has served in leadership roles at the US FDA, driving initiatives across the agency to spur innovation in medical technology.

Afia is passionate about technology, equity, and healthcare access for all people. She serves as a Board  Director of Lucille Packard Stanford Children's Hospital, the Public Health Institute, an organization whose  mission is to improve global health and equity, and as a limited partner in the How Women Invest Fund,  supporting women founders.

Sanjay Basu, MD, PhD is a physician and epidemiologist whose work focuses on the development and application of disease prevention models for low-income communities. As co-founder and Head of Clinical for Waymark, Sanjay oversees the company’s research and development function, including product, engineering, design, and clinical teams. His team is building a technology stack to enable community based care.

Prior to Waymark, Dr. Basu served as the Director of Research at the Harvard Medical School Center for Primary Care. Dr. Basu received his education from the Massachusetts Institute of Technology (MIT), Oxford University (as a Rhodes Scholar), and Yale before completing his residency in internal medicine at the University of California in San Francisco.

Sanjay has published over 300 peer-reviewed journal articles, been named to the “Top 100 Global Thinkers” List by Foreign Policy Magazine, awarded the NIH Director’s New Innovator Award, and received the Presidential Early Career Award for Scientists and Engineers. His work has focused on preventing and treating chronic diseases, reducing the health effects of financial shocks and other adverse social determinants of health, improving access to essential healthcare services, and improving primary care infrastructure and quality. He currently practices medicine at San Francisco's Integrated Care Center, a primary care, behavioral health, substance abuse, and oral health center for unhoused people.

Rajaie Batniji, MD, PhD is a physician and entrepreneur passionate about improving care delivery. At Waymark, he leads a team that is catalyzing improvement in access and outcomes for people with Medicaid  benefits through technology-enabled community care.

Prior to Waymark, Dr. Batniji was co-founder of Collective Health, where he was Chief Health Officer for  eight years, growing the company to serve hundreds of thousands of members. Rajaie was previously a  Clinical Assistant Professor of Medicine at Stanford University, where he trained in internal medicine. He  holds BA and MA degrees from Stanford University, an MD from UCSF, and a doctorate in politics and  international relations from Oxford University, where he studied as a Marshall Scholar.

Rajaie's research has been published in top international medical journals, including The Lancet, Health Affairs,  British  Medical Journal and the Bulletin of the World Health Organization. His work has been featured in major  media, including the New York Times, WSJ, Bloomberg, Forbes, STAT, among others. Rajaie lives in San  Francisco with his wife and young children.

Sara Greenbaum serves as Head of Care Operations at Waymark, leading market operations and  implementations. Prior to joining Waymark, Sara was Regional Market President at Eleanor Health, where  she led operations and growth across four states. Previously, Sara was interim Chief Growth Officer of Beacon Health Options and VP & GM of Beacon Care Services, where she led the company’s efforts to build, operate, and grow a new behavioral health provider business to increase access to quality mental health care.

Prior to joining Beacon, Sara held a series of strategy and operations leadership roles at CVS Health,  spearheading initiatives to develop and implement new retail health services and formats including  HealthHUB. Earlier in her career, she worked for the Clinton Foundation, where she was a founder and  Chief Strategy Officer of the Clinton Climate Initiative. Sara received a BA in Political Science from Tufts  University and an MBA from Harvard Business School. She lives in the Boston area and, outside of the  office, she enjoys live music, photography, sports, outdoor adventures, and world travel.

Brett currently serves as the Head of Partnerships for Waymark. Prior to joining Waymark, Brett was the  Chief Commercial Officer of Modivcare and the Chief Growth Officer for Cityblock Health, a leader in  making healthcare accessible and affordable to the country’s most vulnerable populations Prior to CityBlock, Brett served in various leadership positions at Optum, including SVP Enterprise Transformation and President-EVP Optum Behavioral Care. Before Optum, he served as CEO of ProVenture, an Aetna business unit dedicated to establishing joint ventures with leading integrated healthcare delivery organizations. Earlier in his career, Brett was a partner in PwC’s consulting practice, serving as US Deals Leader for Healthcare.

Alex Fleming serves as the Head of Revenue at Waymark, leading finance, health plan business development, contracting, and enterprise revenue strategy. Alex has been with the company since January 2022, starting as Waymark’s Chief of Staff where he built out Waymark’s foundational financial and sales operations. He then served as the VP of Health Plan Business Development owning end-to-end contracting for all of Waymark’s health plan contracts, before advancing to his current role.

Prior to joining Waymark, Alex was a Principal at the Boston Consulting Group (BCG) in their Payer & Provider Practice. At BCG, he specialized in risk-bearing products like Medicare Advantage and Managed Medicaid, working with top healthcare organizations on strategy and operational initiatives. His particular focus areas included connected care, evidence-based interventions, tech-enabled care platforms, home health, and digital marketplaces for insurance plans.

Alex is a graduate of Harvard Business School (MBA), the University of Cambridge (MPhil in Management), and Brown University (dual B.A. in Human Biology and Economics).

Andrea Cerulli serves as Head of People at Waymark, leading the company's people strategy across talent acquisition, talent management, learning and development, inclusion, and employee engagement. As an advocate for the employee experience and a strategic partner to the Leadership Team, she focuses on building the inclusive, high-performing culture needed to advance Waymark's mission of improving care for people with Medicaid benefits.

Prior to joining Waymark, Andrea spent 8 years at agilon health, where she held progressive leadership roles culminating as Vice President of Talent Management. There, she led people strategy through the company's IPO and global expansion. Earlier in her career, she held people leadership roles at Alignment Healthcare and CareMore, where she built and scaled people functions from the ground up across multiple states.

Andrea holds an MBA in Human Resources from the Jack Welch Management Institute, and a BA in English and History from Emory University. She is passionate about building workplaces where people feel seen, supported, and empowered to do their best work in service of communities that need it most.