Center for Pediatrics adds 2 pediatricians Katherine S. Herzog and Bristol Y. Savage have joined The Center for Pediatrics at The Longstreet Clinic, which has offices in Gainesville, Oakwood, Braselton, Buford and Baldwin. Herzog is a graduate of Mercer University and earned her medical degree at the Medical College of Georgia. She completed pediatric residency training at Palmetto Health Richland/USC School of Medicine in Columbia, S.C. Before joining TLC, Herzog practiced at Bayside Pediatrics in Tampa, Fla.