Mr. Siwabessy oversees finance for UCI Health, its physician enterprise and the UC Irvine School of Medicine, with responsibilities including accounting, planning and analysis, payer strategy, revenue cycle, supply chain and population health management. Since joining in 2021, he has helped sustain 15% annual revenue growth, led one of the University of California’s largest hospital transactions, consisting of a $975 million acquisition that expanded UCI Health from one to five hospitals, and advanced the $1.3 billion Irvine medical complex, which will include the nation’s first all-electric hospital. He also integrated revenue cycle functions across multiple entities and updated a 10-year strategic financial plan to support system growth and value-based care. Mr. Siwabessy serves on the Orange County Chamber of Commerce board and previously held CFO and administrative leadership roles with Los Angeles-based Keck Medicine of USC, San Diego-based Rady Children’s Hospital and San Francisco General Hospital.
