About

The Long Island flagship hospital of the Mount Sinai Health System, Mount Sinai South Nassau is designated a Magnet® hospital by the American Nurses Credentialing Center (ANCC) for outstanding nursing care. Mount Sinai South Nassau is one of the region’s largest hospitals, with 455 beds, more than 900 physicians and 3,500 employees. Located in Oceanside, NY, the hospital is an acute-care, not-for-profit teaching hospital that provides state-of-the-art care in cardiac, oncologic, orthopedic, bariatric, pain management, mental health and emergency services and operates the only Trauma Center on the South Shore of Nassau County, along with Long Island’s only free-standing Emergency Department in Long Beach.
In addition to its extensive outpatient specialty centers, Mount Sinai South Nassau provides emergency and elective angioplasty, and offers Novalis Tx™ and Gamma Knife® radiosurgery technologies. Mount Sinai South Nassau operates the only Trauma Center on the South Shore of Nassau County verified by the American College of Surgeons as well as Long Island’s only free-standing, 9-1-1 receiving Emergency Department in Long Beach. Mount Sinai South Nassau also is a designated Stroke Center by the New York State Department of Health and Comprehensive Community Cancer Center by the American College of Surgeons; is an accredited center of the Metabolic and Bariatric Surgery Association and Quality Improvement Program; and an Infectious Diseases Society of America Antimicrobial Stewardship Center of Excellence.
In the U.S. News and World Report’s 2019-2020 Best Hospitals rankings, Mount Sinai South Nassau is ranked No. 20 among the 170 hospitals in the state of New York, as well as No. 20 among the 118 hospitals in the New York metropolitan area, while its Division of Urology is ranked 35th nationally. In addition, the hospital has been awarded the Joint Commission’s gold seal of approval for disease-specific care for stroke, hip and knee replacement, heart failure, bariatric surgery, wound care and end-stage renal disease.