Jim Terwilliger

Jim Terwilliger

Principal

Over the course of his 30+ year career, Jim has served in senior executive roles at some of the nation’s most complex and high-performing health systems, developing deep expertise in acute care, ambulatory and physician enterprise strategy, health system integration, and operational performance improvement. His experience spans AMCs, integrated delivery networks, and physician enterprises, where he has overseen large-scale transformations, clinical service line growth, and organizational alignment. Across multiple roles, Jim has led organizations to improved performance by driving significant margin improvement, strengthening workforce stability, and advancing enterprise-wide operating discipline. Clients deeply value Jim's ability to identify the critical performance drivers—whether related to access, productivity, or care model design—and mobilize teams to execute them with discipline and clarity, often in complex, multistakeholder environments.

Before joining ECG, Jim served as market president for the Puget Sound region at Virginia Mason Franciscan Health, part of CommonSpirit Health, overseeing a nine-hospital system, more than 18,000 employees, and a broad physician enterprise across a multi-billion-dollar market. During his tenure, he led a financial and operational turnaround that delivered an $80 million year-over-year improvement in operating income. He also established the largest integrated patient transfer and capacity management enterprise in the Northwest, improving throughput, reducing length of stay, and expanding patient access across the system. Prior to that, at Dana-Farber Cancer Institute, Jim was instrumental in the organization's growth and operational advancement, leading enterprise performance improvement efforts related to patient access and throughput and helping launch innovative programs, including a direct-to-employer oncology model to strengthen employer engagement.

Education

UCLA Fielding School of Public Health
Master of Public Health

Boston University
Bachelor of Arts