Investigators charged James Simmons with leaving the scene of an accident resulting in death.
Detectives believe that the driver of the ambulance did not realize the pedestrian was struck and kept going.
Police say 43-year-old Bryan Guashpa Rumipamba struck and killed Espina Bundley as she was walking near a bike lane on East 57th Street and Second Avenue.
Nassau County police say the man was crossing Merrick Road in Freeport around 8:10 p.m. Wednesday when he was struck by an eastbound vehicle that fled the scene.
Officers are looking for a black SUV, last seen traveling eastbound on East 57th Street.
A man has been charged after a pedestrian was struck and killed by a hit-and-run driver on the Upper East Side early Friday morning.