NYU Langone Medical Center in Manhattan began evacuating about 215 patients Monday night when its backup generator failed hours after Sandy's massive wind and rain made landfall. Patients were being transferred to Memorial Sloan-Kettering Cancer Center's Memorial Hospital, New York-Presbyterian Hospital, Mount Sinai Medical Center and the North Shore-LIJ Lenox Hill Hospital, said NYU Langone spokeswoman Lisa Greiner. Memorial Sloan-Kettering was expected to accept 26 patients, a spokeswoman said. Mount Sinai Medical Center said in a statement that two post-operative units would be used for patients transferred from NYU Langone Medical Center's critical care, neonatal intensive care and obstetric areas. Doctors and staff from NYU Langone Medical Center were expected to travel by ambulance with patients to Mount Sinai. Coney Island Hospital, which previously evacuated about 40 patients dependent on ventilators and other devices, lost generator power during the storm from flooding. One generator was restored Tuesday morning, but officials continued to evaluate whether to evacuate, said Ian Michaels, a spokesman with New York City Health & Hospitals Corp. Seven critical ventilator patients who remained at the hospital were evacuated Tuesday to Woodhull Medical and Mental Health Center and Kings County Hospital Center, he said. Bellevue Hospital Center, where hospital officials and the New York Fire Department worked to maintain generator power, continued operations with one generator, he said. The hospital's basement flooded.