Our Doctors Radiologic Associates of Fredericksburg VIVA Fredericksburg VIVA Richmond All Locations Interventional RadiologyInterventional RadiologyFellowship trained specalists in the diagnosis of vascular disorders, minimally invasive diagnostic procedures, and endovascular therapies. Section Chief: Daryle L. Darden, MD - R. Donald Doherty Jr., MDSee full profile - Gustavo Elias, MDSee full profile - Samer Hijaz, MDSee full profile - John J. McLaughlin, MDSee full profile