About Nexus Pain Center. Led by Drs. TaKia M. Oglesby, Sung K. Chang, and Jeffrey Robert Prinsell, Jr., The Nexus Pain Center in Columbus and LaGrange, Georgia, is a preeminent pain clinic providing their patients with innovative medical solutions and cutting-edge technologies.Contact Us‧Providers‧About‧Takia M. Oglesby, MD‧Patient Forms‧Services.