 In 1974, its name was changed to the Nassau County Medical Center when it opened the 19-story
Dynamic Care Building.This caused confusion with Nassau Hospital in Mineola, New York, which a decade later changed its name to Winthrop-University Hospital.Again in December 2000, as part of its transition from county owned hospital to public-benefit corporation, the Center’s name changed to Nassau University Medical Center to emphasize its affiliation with Stony Brook University's Health Sciences Center.