Police say DeGraw was attacked sometime Monday morning, between 3:50am and 4:20am, on 1st Avenue and East 6th Street. It's not clear what he was doing in the neighborhood at the time.
After DeGraw was attacked, he walked to 1st Avenue and East 19th Street where he was clipped by a taxi cab.
DeGraw was taken to Bellevue Hospital where he's being treated for a broken nose and facial lacerations.
The singer didn't initially report the attack to police. Staff at the hospital called it in.
DeGraw was drunk when the attack happened, so police are trying to piece together what happened.
DeGraw and his brother Joey own a bar called National Underground, at 159 East Houston Street.
The singer is currently touring with Maroon 5 and Train.