Police said the officer was walking on Second Avenue in the East Village when he was assaulted around 6 a.m.
He was reportedly approached by a man who demanded his cell phone. When the officer said no, police say the suspect struck him in the head with a handgun.
The victim was taken to Bellevue Hospital, where he received stitches to the head.
The suspect fled the scene empty-handed.
No arrests have been made.
Anyone with information in regard to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).
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