Surveillance video showed the suspect pulling a 41-year-old woman out of a room.
The suspect reportedly entered the massage parlor near Washington Square Park Friday morning.
Police say the suspect beat the victim until she became unconscious and sexually assaulted her.
The victim is in stable condition.
The suspect is described as a black or Hispanic male, 20 to 25 years old, approximately 6'00", medium build, wearing a dark Kangol-style cap, dark T-shirt, camouflage shorts, and a backpack.
Anyone with information in regard to this incident is asked to call Crime Stoppers at 1-800-577-TIPS (8477).
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