At Spectrum Pediatric Group, we consider it both a great joy and a responsibility to care for children. Most of us are parents ourselves, so we strive to be understanding and available to the families we are privileged to serve. We are honored that you have chosen us as your child's primary medical provider and are confident that you will be pleased with the quality of care and service that we can provide you and your family. A vital part of our service to children begins with our outstanding staff, who work hard to manage and maintain a professional, caring, and supportive environment for our patients in a timely manner. Our doctors are lifelong learners. Not only have they received advanced medical training in pediatrics, but they also continually pursue ongoing education to stay abreast of the latest in child health care. Your child's health is as important to us as it is to you. We look forward to providing you with the excellent medical care your child deserves.
Our Providers

Kola Ologunja, M.D., FAAP
Kennesaw GA Pediatrician
Spectrum Pediatric GroupDr. Kola Ologunja (Dr. Kola) is a fellow of the Academy of Pediatrics and has been board-certified since 1996. He received his Pediatric residency training at New York University Medical Center. Dr. Kola is affiliated with Children’s Healthcare of Atlanta and Wellstar. He is married with two daughters.

Alison Ball, M.D., FAAP
Kennesaw GA Pediatrician
Spectrum Pediatric GroupDr. Ball is a fellow of the American Academy of Pediatrics and has been board-certified since 2015. She completed her undergraduate studies in biology and chemistry at Wake Forest University and her medical training at St. George's University. She completed her pediatric residency program at the University of Nevada School of Medicine, where she received residential teaching honors. She has made missionary trips to St. Lucia, where she served at an orphanage, and in Grenada, where she worked with children at local hospitals. In her spare time, Dr. Ball enjoys playing soccer, jogging, watching sports, and spending time with her beagle, Snoopy, and her newborn baby.

Kevin Sullivan, M.D., FAAP
Kennesaw GA Pediatrician
Spectrum Pediatric GroupDr. Sullivan is a fellow of the American Academy of Pediatricsand has been board certified since 2024. Originally from Marietta, he attended Emory University for his undergraduate studies in biology and music performance. He completed medical school at Tulane University in New Orleans and then moved to Baltimore to complete his pediatric residency at University of Maryland Medical Center. He is happy to be back in Georgia practicing medicine in the community he grew up in.