Police say the driver, Renee McKinney, was on drugs when she attempted to make a right turn into a gas station in Shirley Saturday morning, missed the turn and struck a gas pump, knocking it over.
Rosalie Koenig, who was pumping gas on the other side of the pump, became wedged between the pump and her vehicle, a 2014 Nissan Frontier.
Officials say Koenig, 62, of Mastic was hospitalized in serious condition.
McKinney was hospitalized as a precaution. A passenger in her vehicle was not hurt.
McKinney is charged with driving while ability impaired by drugs.