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Olentangy Pediatrics is home to seven highly respected, board-certified physicians who are ready to team with you to support your child’s good health. We hope you will choose one physician as your child’s doctor who will then be available for well-child examinations and ill-child appointments. (As needed, your child may be treated by one of our other experienced physicians for an ill-child visit.) 

Additionally, the physicians have assembled a well-trained team of registered nurses and other pediatric personnel to staff the office. Each member of this team shares our physicians’ commitment to deliver quality, comprehensive pediatric care.

We hope you will consider Olentangy Pediatrics. We welcome the chance to help prepare your child for a lifetime of good health! 

All of Olentangy Pediatrics’ physicians are board-certified and members of the American Academy of Pediatrics.

Dr. Eileen M. Maher is a graduate of Holy Cross College in Worcester, Massachusetts, and the Ohio State University College of Medicine, where she was elected to the Alpha Omega Alpha honor society and graduated cum laude. Dr. Maher completed her pediatric residency at Columbus Children’s Hospital. She has been practicing pediatrics in Columbus since the completion of her residency.She lives in the northwest Columbus area with her husband William Maher and is the mother of three grown children. Dr. Maher enjoys being involved with the postpartum support group (POEM) as well as the Down Syndrome Association of Central Ohio (DSACO). In her spare time, she is at the gym or reading a good book. 
Dr. Anne D. Littleton joined Olentangy Pediatrics in 1990. Dr. Littleton earned her medical degree from the Ohio State University College of Medicine and completed her residency at Columbus Children’s Hospital, where she received the “Resident of the Year” award from the nursing staff. She has been active in training pediatric residents both in the office and at Children’s Hospital. She is the mother of three.
Dr. S. Randall Brown joined Olentangy Pediatrics in 2001. After graduating cum laude with a degree in chemistry from Miami University, Dr. Brown earned his medical degree from Wright State University School of Medicine. He completed his pediatric residency at Kosair Children’s Hospital in Louisville, Kentucky. Dr Brown is active at Nationwide Children's Hospital as a Private Pediatrician board member and he serves on an advisory council. Dr. Brown is an avid golfer and a dedicated youth sports coach. He and his wife, Emily, are busy with their 3 children ages 5, 10 and 12.
Dr. Emily T. Ferguson joined Olentangy Pediatrics July 2011.After graduating magna cum laude from Miami University with a B.A. in Zoology, Dr. Ferguson earned her medical degree from the University of Toledo College of Medicine.She completed her Pediatric residency at Nationwide Children’s Hospital and did part of her training here at Olentangy Pediatrics.She has three children of her own with her husband, Collin.In her small amount of free time she loves playing sand volleyball.  
Dr. Irene P. Koesters joined our medical practice in 2004. After graduating summa cum laude from Case Western Reserve University with a degree in biology, she attended the Ohio State University College of Medicine. She received her medical degree in 2001 and completed her residency at Columbus Children’s Hospital. In addition to her wonderful practice, Dr. Koesters enjoys teaching medical residents and students.She has three lively, loving children, and enjoys spending time outdoors with them. She is an ultra-marathoner and loves an adventure.
Dr. Autumn M. O'Brien is a true Buckeye!Originally from Akron, she graduated from OSU in 1991 with a Biology degree and again in 1995 with her medical degree.She completed a combined Internal Medicine/Pediatrics residency at OSU and Nationwide Children's Hospital in 1999.She worked as an internist and pediatrician at an OSU clinic in Grandview before joining our practice in 2009.She is married to Dr. Blaize O'Brien, an ENT physician. She has two daughters that ironically attend “that school up north”, a son at St. Charles Prep, and a daughter at Upper Arlington High School.She enjoys watching her kids compete, traveling, cooking, and playing tennis. 
Dr. Mitchell R. Camp joined Olentangy Pediatrics in 2018.After Graduating from Bowling Green State University with a degree in Education, he spent several years teaching Junior High Special Education.Dr. Camp returned to school and graduated from The Ohio State University with degrees in Biology and Chemistry, and earned his medical degree from Wright State University. He completed his pediatrics residency at Nationwide Children's Hospital.He has three children with his wife, Andrea.In time away from the office he enjoys time with family, being an avid Cleveland and OSU sports fan, and playing softball.
Dr. Claire Ackerman is a pediatric psychologist who joined Olentangy Pediatrics in 2017. After graduating summa cum laude with a B.A. in Psychology from the University of Delaware, Dr. Ackerman earned her Ph.D. in Child Clinical Psychology and Behavioral Medicine from the University of Maryland Baltimore County. She conducted research in the areas of pediatric pain management and parenting children with food allergies. She completed her pediatric psychology internship and fellowship at Nationwide Children’s Hospital. She was then employed in Behavioral Health at the hospital prior to joining our practice to provide integrated behavioral health care. She is married to John, a clinical psychologist at Nationwide Children’s Hospital. Together they have two children, and she enjoys spending time crafting new recipes with them in the kitchen and exploring the outdoors.


Our experienced physicians can take care of your every ache and pain, while treating you and your family with care and compassion.

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We are currently accepting new patients. Please call us to register. 

Business Associations

American Board of Pediatrics

American Academy of Pediatrics


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YP Reviews

Ua P. On 08.31.2018
Olentangy Pediatrics are awesome. Dr. Maher and her associates helped us raise our three children to be healthy adults. From the sick and well check ups along with special exams and monitoring for a genitic...

Business Hours
4775 Knightsbridge Blvd
Suite 207
Columbus, OH 43214

Phone: (614) 442-5557
Fax: (614) 442-1070 or (614) 442-2133 
In Business Since 1989
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