Long Island Jewish Medical Center (LIJ) is one of the largest hospitals in New York State and the cornerstone of Northwell Health's Queens and Nassau County network. LIJ is home to some of the region's most specialized programs — particularly in women's health, pediatrics, psychiatry, and cancer — serving a dense, diverse population at the intersection of Long Island and New York City. Cohen Children's Medical Center of New York, one of the largest children's hospitals in the Northeast, is located on the LIJ campus — providing comprehensive pediatric medical and surgical care, including pediatric cardiac surgery, pediatric oncology, and a 60-bed NICU. Maternal-fetal medicine specialists at LIJ manage the highest-risk pregnancies referred from across the New York region. The hospital's psychiatry program — Zucker Hillside Hospital — is among the nation's most respected, providing inpatient and outpatient mental health services, a world-renowned early psychosis intervention program, and extensive substance use disorder treatment. The Northwell Health Cancer Institute at LIJ provides comprehensive oncology care across all tumor types, with particular strength in hematologic malignancies treated by the bone marrow transplant program. Reproductive medicine, infertility treatment, and gynecologic oncology reflect LIJ's longstanding leadership in women's health.