Nation's third-largest, non-profit, secular healthcare system (based on number of beds). Nation's 16th largest healthcare network, based on net patient revenue, and the largest in New York State. Service area of 5.2 million people in Long Island, Queens and Staten Island. Recipient of Joint Commission on Accreditation of Healthcare Organizations (JCAHO) Codman Award, the first health system to attain this distinction.
* North Shore University Hospital, Manhasset
* Long Island Jewish Medical Center, New Hyde Park
* Staten Island University Hospital, North Division
*Academic campus for the NYU School of Medicine and the Albert Einstein College of Medicine and teaching hospital affiliated with SUNY Brooklyn
* Schneider Children's Hospital, New Hyde Park - one of only two dedicated children's hospitals in New York State with 154 beds
* The Zucker Hillside Hospital - a 223-bed psychiatric facility known for its pioneering work in the diagnosis, treatment and research of mental illness
* Forest Hills Hospital
* Glen Cove Hospital
* Plainview Hospital
* Syosset Hospital
* Franklin Hospital, Valley Stream
* Huntington Hospital
* Southside Hospital, Bayshore
* Staten Island University Hospital, South Division
* Nassau University Medical Center, East Meadow
* Peninsula Hospital Center, Far Rockaway
* The Stern Family Center for Extended Care & Rehabilitation, Manhasset
* Orzac Center for Extended Care and Rehabilitation, Valley Stream
* Peninsula Center for Extended Care and Rehabilitation (Affiliate), Far Rockaway
*Glengariff Health Care Center (Affiliate), Glen Cove
* The Feinstein Institute for Medical Research, Manhasset - World-class biomedical and clinical research
* Core Laboratory, Lake Success - Around-the-clock testing facility
*Center for Emergency Medical Services, Syosset - The largest hospital-based ambulance service in the East
*Center for Learning and Innovation, Lake Success - One of healthcare's first "corporate universities"