An EMT was arrested in Manhattan today after he pummeled a taxi cab driver, police sources said.

Vincent Johnson, 42, was on-duty for the Fire Department when he assaulted the cabbie, 50, about 12:50 a.m. Thursday after an argument in in Midtown on 7th Avenue and 35th Street, sources said.

The victim was not seriously injured.

Police busted him shortly after, and he was charged with assault.