Northwell Health is a nonprofit integrated health system and New York State's largest private employer, running 28 hospitals and more than 1,000 outpatient facilities across Long Island, New York City, Westchester, the Hudson Valley and western Connecticut. It traces back to the North Shore Health System (1992), which merged with Long Island Jewish Medical Center in 1997 and took the Northwell name in 2016; it has about 106,000 employees and is led by president and CEO John D'Angelo, MD.