About Us

At Spectrum Pediatric Group, we consider it both a great joy and 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 works 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, they 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 excellent medical care your child deserves.

Our Providers


Kola Ologunja, M.D., FAAP

Spectrum Pediatric Group

Dr. 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

Dr. 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 newborn baby.

Image Stephanie Montoya, D.O., FAAP

Dr. Stephanie Montoya recently joined the Spectrum Pediatric Group in November 2022. Dr.

 Montoya attended Florida International University for her undergraduate studies and earned her medical degree from Philadelphia College of Osteopathic Medicine Georgia in Suwanee, GA. She completed her residency training at the Michigan State University/Sparrow Hospital Pediatric Residency program in Lansing, MI.

 Dr. Montoya is fluent in both Spanish and English. She is a fellow of the American Academy of Pediatrics and Board Certified since 2023. Some of her areas of interest include adolescent medicine, autism and asthma management.

 She lives in Powder Springs with her son (EJ), husband (Dr. Williams) and French Bulldogs (Beatrix and Elle)..