Lee W. Oeleis, 25, was headed east on Interstate 84 on Monday morning when he failed to yield to slowing traffic and his 2001 Yamaha motorcycle struck the back of a car.
The accident took place at 7:39 a.m. at milepost 47. Oeleis ran into the back of a 2004 Dodge Neon driven by Vernon M. Blazor, 28, of Nampa.
Oeleis, who was not wearing a helmet, was taken by ambulance to Saint Alphonsus Regional Medical Center. Oeleis was treated and released, a hospital spokesman said.
The crash is under investigation by the Idaho State Police.