The 52 year old was walking on a path near East Drive and East 68th Street when the group attacked him at 10:00 p.m.
According to investigators, the five or six teens saw him walking by himself and one said, "Take him!" The group jumped the victim, punching him in the head and face.
They removed money and fled the scene, officials said.
The victim was not seriously hurt.
No arrests were immediately made. No further description of the suspect was immediately available.
