Dr. Hyun Sun Park, Developmental & Behavioral Pediatrics

Dr. Park has special interests in premature and high risk infants, early identification of children with autism, ADHD and learning problems. Dr. Park is board certified in pediatrics. Prior to joining CHOC Children’s, Dr. Park attended medical school in Argentina at the Universidad de Buenos Aires Faculty of Medicine. She served her residency training in pediatrics at the University of Illinois in Chicago and conducted her fellowship training in developmental & behavioral pediatrics at Rainbow Babies Hospital in Cleveland, Ohio. Dr. Park was selected as America’s Top Pediatricians by the Consumer’s Research Council of America. She speaks fluent Korean and Spanish.

Private Practice

Center for Autism and Neurodevelopmental Disorders
2500 Red Hill Avenue
Suite 100
Santa Ana, CA 92705
phone: 949-267-0400
fax: 949-221-0004


  • Medical School
    University of Buenos Aires Faculty of Medicine, Argentina
  • Pediatrics Residency
    University of Illinois, Chicago
  • Developmental/Behavioral Pediatrics Fellowship
    Rainbow Babies Hospital, Cleveland, OH

Board Certifications

  • Pediatrics

  • Hyun Sun Park MD
    • Appointments:
    • Specialties: Developmental & Behavioral Pediatrics, Pediatrics
    • Board Certified: Pediatrics
    • Additional Languages: Korean, Spanish
    • On Staff at: CHOC Children's Hospital