Dr. Brian F. Gilchrist of Mineola and Brooklyn has been hired as chief of pediatric surgery at NYU Winthrop Hospital in Mineola. He was chairman of surgery at Bronx-Lebanon Hospital Center in the Bronx and served as a combat surgeon in the Persian Gulf War.
Alex Resnick of Holbrook, a partner at Wild, Maney & Resnick in Woodbury, has been elected president of the New York State Society of CPAs, Nassau Chapter.
George Tsunis of Matinecock, chairman and CEO of Chartwell Hotels in Locust Valley and chairman of the NuHealth board, has been appointed chairman of the board of the Battery Park City Authority in Manhattan.
Howard M. Dickstein of Merrick, assistant vice president at GEICO in Woodbury, has been elected to the board of directors of the United Way of Long Island in Deer Park.
Cathleen Black of Southampton, principal of Madison Park Ventures in Manhattan, has been appointed to the board of advisers at VINA, a company in Los Angeles and Manhattan that empowers women through technology.
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