Simche Campbell, 22, was flown to the University of Maryland Shock Trauma Center Wednesday, hospital spokeswoman Sharon Boston said Thursday.
According to a Maryland State Police news release, Campbell was attempting to make a left-hand turn into a business parking lot when his Honda Civic was struck by a Chevrolet Suburban driven by 60-year-old Bruce Wilson, of Mount Airy.
Campbell had to be extricated from his vehicle by members of the Winfield and Sykesville fire departments, according to the release.
Wilson was treated at the scene, police said.
Trooper First Class James Lantz said it has not been determined whether charges will be filed.
Police said speed and alcohol were not factors in the collision.
Route 26 was closed for about five hours during the investigation, according to police.
While investigating the collision, state police responded to a second accident on Route 26 involving a Nissan Armata and Ford Ranger.
Lantz said the second collision was caused by the slowing traffic and a driver not paying attention.