oak-hc/ft
(2)
Chris Severn
Chris Severn is the co-founder and CEO of Turquoise Health, a San Diego company building software to make healthcare pricing transparent and to simplify the way hospitals and insurers contract and pay each other. After a decade modeling hospital managed-care contracts and running machine learning for payment integrity, he started Turquoise in 2020 with engineer Adam Geitgey, pivoting into federal price-transparency rules just as they took effect. The company has aggregated price data from thousands of hospitals and, in March 2026, raised a $40 million Series C led by Oak HC/FT to become what Severn calls the operating system for healthcare contracts and payments. He also teaches improv comedy and has testified before Congress on price transparency.
Sam Holliday
Sam Holliday is the co-founder and CEO of Oshi Health, the first nationwide virtual GI center of excellence, built on value-based, whole-person care. A digital health operator since 2013, he scaled companies across diabetes management, patient acquisition and population health before launching Oshi in 2019. In October 2024 the company raised a $60M Series C led by Oak HC/FT, reaching all 50 states and more than 40 million in-network members.