Thomas Moran was in fair condition at Massachusetts General Hospital at 2 p.m. this afternoon, according to the hospital.
He was flown by MedFlight helicopter after the crash, which happened around 9:30 p.m. on Saturday near 838 North Bedford St.
According to police, Moran was driving a Harley Davidson and wearing a helmet when he collided with a 2006 Ford minivan driven by Thomas Kelley, 50, of Bridgewater, police dispatcher Jack Curley said.
Curley did not have further details on the crash on Monday. He said Kelley was not cited in the crash.
The State Police Collision Analysis Reconstruction Section is investigating.