Dr. Kostur is a board-certified pediatrician with over a decade of pediatric experience in general office pediatrics and emergency pediatrics.  Dr. Kostur is a fellow of the American Academy of Pediatrics and completed her pediatric residency in 2003 at one of the nation's top-ranked children's hospitals, Cincinnati Children's Hospital Medical Center. 

Dr. Katherine Byra

Dr. Katherine Byra is a board certified pediatrician who has been practicing in Jacksonville for the past decade. She completed her undergraduate degree at the University of Miami where she received her Bachelors of Science in 2006. She received her medical degree at the University of South Florida in 2010. She stayed on for her Pediatric Residency rotating through Tampa General Hospital and All Children’s Hospital in St. Petersburg. She and her husband moved to Jacksonville in 2013 after he joined a radiology group associated with St. Vincent’s. She has 3 very active kids and 2 dogs that keep her busy. She is currently on the board for the American Cancer Society’s Cowford Ball sponsorship committee and helps to raise funds to assist in cancer research. In her spare time she enjoys cheering on the Jaguars for a win, watching her kids play sports and traveling to visit family and friends.

Sara Dahbour A.P.R.N

Sara is a board-certified Pediatric Nurse Practitioner with over 5 years of experience in pediatric primary care. She received her Master of Science in Nursing degree from the University of Florida in 2014, graduating with honors. She attended Florida State University in Tallahassee for her undergraduate studies and her BSN.

Carolyn Williams APRN

Carolyn joined our practice in December 2019. She is a board-certified pediatric nurse practitioner in primary care. She received a bachelor’s degree from the University of Mississippi in 2011, minoring in biology, psychology, and Spanish.