Fri. 8:00 am - 4:30 pm. Sat. 8:00 am - 1:00 pm. GET DIRECTIONS. New Jersey Imaging Network | Union, formerly known as Union Imaging Center, provides medical imaging services to patients and their doctors in Union County. NJIN of Union is a member of the New Jersey Imaging Network (NJIN), a joint partnership between Barnabas Health and RadNet..