Nandini Nayar is a Health Rosetta AI Fellow with deep expertise in AI strategy and scaling digital health innovation. She previously led AI/ML initiatives at Heartbeat Health and Optum, where she applied machine learning to chronic disease management, member engagement, and benefits optimization. Now at Harvard Business School, she is building a venture that helps brokers and employers consumerize and personalize benefits to drive engagement, cost-efficiency, and equity at scale.