President and CEO
Northwell Health
A physician first and foremost, Dr. John D’Angelo leads with compassion. With over 25 years of practical experience, he continues to transform health care operations as president and CEO of Northwell health, the Northeast’s largest non-for-profit health system.
Dr. D’Angelo oversees a complex network of 28 hospitals and 104,000 employees, including over 1,000 outpatient facilities, 22,000 nurses and over 20,000 physicians with an operating budget of $22.6 billion. Northwell cares for more than three million people annually in the New York metro area, including Long Island, the Hudson Valley, western Connecticut and beyond.
He was previously the Executive Vice President, Market President for Northwell Health’s Central Market, which includes North Shore University Hospital, Long Island Jewish Medical Center, Cohen Children’s Medical Center, LIJ Forest Hills Hospital, LIJ Valley Stream Hospital and Zucker Hillside Hospital, as well as Northwell’s 260+ ambulatory locations within the Nassau/Queens area.
Dr. D'Angelo led Northwell's operational response to the COVID-19 pandemic as Operations Chief for the system command center and was later appointed Chief of Integrated Operations. Leveraging lessons from the pandemic, he integrates Northwell’s extensive operational resources in the post-pandemic era. Previously, as Senior Vice President and Executive Director of Northwell Health’s Emergency Medicine Service Line, he oversaw the clinical and operational performance of Northwell’s emergency departments, observation units, and a growing network of urgent care centers, serving nearly 1.5 million patients annually.
As an emergency medicine physician, Dr. D’Angelo has a keen understanding of clinical care delivery, quality, process improvement and operations management. He has spearheaded numerous initiatives that have distinguished Northwell over the years. Examples of his work include Northwell’s sepsis efforts, which earned The Joint Commission’s Eisenberg Award, the opening of Manhattan’s first free-standing emergency department, Lenox Health Greenwich Village.
A leader in data transparency and access, Dr. D’Angelo co-led the creation of Real-Time Actionable Data, enhancing operational data visibility for leaders and frontline staff across Northwell. This innovation earned Northwell’s top award in 2019. The team's solutions have significantly expanded, playing a crucial role in the COVID-19 response and culminating in a comprehensive hospital command center suite at North Shore University Hospital.
Dr. D’Angelo has served as the Chair for the Northwell Health Physician Partners Board of Governors & Executive Committee from 2019 -2022. He is also an Associate Professor of Emergency Medicine at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell.
A Long Island native, Dr. D'Angelo received his medical degree from SUNY Stony Brook and subsequently completed a residency in Emergency Medicine at Geisinger Medical Center, Danville, PA. He started his career as an attending at Holyoke Hospital in Massachusetts and transitioned to an attending physician at Northwell Health's Glen Cove Hospital in 2000 and appointed Chair of the Glen Cove's Emergency Department in 2005. He also served as medical director to numerous EMS agencies throughout his career and served in the United States Army Reserve from 2001-2011.
Leadership Insights: How to Rise Through The Ranks of Your Organization - Even to CEO
Tuesday, March 3, 2026
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