John Koster

John Koster, MD A healthcare author and consultant, Dr. Koster is also on the boards of Sutter Healthcare and Banner Healthcare. He is an advisor to hospital systems, health insurers, boards, and early-stage healthcare technology companies. He also serves as an executive in residence of the Health Management Academy. John served for ten years as the CEO of Providence Health & Services, one of the largest US health systems, until 2014. Prior to Providence, John served in senior leadership in health insurance plans, hospital systems, medical groups, and consulting practices. He is an internist and emergency medicine physician.