Investigators said the shooting happened around 7 p.m. Sunday near the exit for the Walt Whitman Bridge.
The victim said that he and his passenger were heading north on I-95 when he accidentally tapped the rear of a white motorcycle.
He said the suspect then pulled up next to the vehicle, pulled a gun from his waistband and fired 13 rounds.
SEE ALSO: Shooting on I-95 in South Philadelphia is case of road rage, police say
Police said the victim suffered a gunshot wound to the left arm and the left side of his head.
The suspect, who was wearing a tan helmet and a black and white vest, sped away from the scene and was last seen with a second black and green motorcycle.
Police said the victim was able to exit I-95 and flag down an officer. He was taken to Jefferson Hospital where he was listed in stable condition.
In the past 12 months, there have been 481 road rage shootings nationwide, with at least 20 in Philadelphia.
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