
John D'Angelo, MD
Dr. John D'Angelo is President and CEO of Northwell Health, the largest nonprofit health system in the Northeast, having stepped into the role in October 2025. He leads a complex network of 28 hospitals and more than 1,000 outpatient facilities, some 106,000 employees, and an operating budget exceeding $22 billion, guiding the system into its next chapter after succeeding longtime CEO Michael Dowling.
An emergency physician by training, Dr. D'Angelo has built his entire 25-year career at Northwell, beginning as an ER physician at Glen Cove Hospital and rising through progressively senior clinical and administrative roles. He served as senior vice president of emergency medicine—overseeing 18 emergency departments and more than 60 urgent care centers—and later as executive vice president of the Central Region, responsible for six hospitals and 24,000 employees. He played a pivotal role in Northwell's COVID-19 response. Dr. D'Angelo earned his medical degree from SUNY Stony Brook, completed his emergency medicine residency at Geisinger Medical Center, and is an Associate Professor at the Zucker School of Medicine at Hofstra/Northwell.