Led design for Sesame’s D2C healthcare marketplace, driving patient activation, engagement, and retention across web, mobile, and emerging healthcare verticals. Spearheaded the launch of Costco Telehealth (128M members) and DoorDash Healthcare (500K merchants) through onboarding and scalable engagement strategies. Designed and delivered Sesame’s first mobile app, enabling booking, continuity of care, and personalized engagement to solidify Sesame’s leadership in cash-pay healthcare.