Early history Nassau Hospital was founded in 1896 as Long Island's first hospital. Its initial location was in
West Hempstead in a former mansion on
Hempstead Turnpike and Hilbert Street that had been the summer home of Abner K. Bedell, an import merchant of silver and china. The architect was
Richard Howland Hunt. The original building consisted of a central administration building, men's and women's wards to its sides, and an operating pavilion at its rear. The hospital had the support of wealthy New Yorkers including
J. P. Morgan. Two additions to the original building were constructed in 1908. was constructed in 1924. although the 1927 building was retained. The new building faced north, as opposed to the old building which faced south. In 1954, a new Women's Pavilion increased its capacity by another 100 beds; (It was renamed as the Gardner Pavilion in 1977.) In 1965, the four-story Potter Pavilion was built, followed by a new emergency department in 1967, and the purchase of the nearby Nassau Towers apartment building in 1968 for use as a doctors' residence. A new parking structure was completed in 1973. The six-story Hoag Pavilion was added in 1975. In 1996, it joined with
South Nassau Communities Hospital to form the Winthrop South Nassau University Health System. In 1998, the New Life Center wing opened. In 2003, the Winthrop South Nassau System became part of
New York Presbyterian. (In 2018, South Nassau hospital instead joined the
Mount Sinai Health System.) By 2019, a full asset merger between NYU and Winthrop had been complete. In November 2020, it was announced that the hospital changed its name to NYU Langone Hospital - Long Island. In December 2024, a new annex to the emergency department opened. ==Notable patients==