Irene Koolwijk, MD, MPH
Accepting new patients

Irene Koolwijk, MD, MPH

  • Developmental-Behavioral Pediatrics
UCLA Developmental-Behavioral Pediatrics | 300 Medical Plaza, Suite 3100, Los Angeles, CA 90095


Irene Koolwijk, MD, MPH is a board-certified Developmental Behavioral Pediatrician, who has an academic appointment as a Health Sciences Assistant Clinical Professor in Pediatrics at UCLA and Shapiro Family Chair in Developmental and Behavioral Pediatrics and Cerebral Palsy.

Dr. Koolwijk’ s clinical and research interests include ADHD, Autism Spectrum Disorder, academic difficulties, learning disabilities, anxiety and behavioral feeding difficulties. Additionally, she provides consultation for a wide range of other developmental and behavioral concerns.

Dr. Koolwijk has a strong interest in Developmental-Behavioral Pediatric educational training. She took on the program directorship of the Developmental-Behavioral Pediatric Fellowship Program at UCLA in 2016. Additionally, she supports the pediatric residents on their developmental rotation.

Dr. Koolwijk grew up in the Netherlands and did her medical school training at University of Leiden. She then completed her Pediatric Residency Training at the Cleveland Clinic in 2009, and her Developmental-Behavioral fellowship training at Boston Children’s Hospital in 2012, while simultaneously completing an MPH at the Harvard School of Public Health. She focused her fellowship research on describing comorbidities seen in children diagnosed with ADHD, which is a continued topic of interest of hers.




Medical Board Certification

Pediatrics, American Board of Pediatrics, 2009


Developmental-Behavioral Pediatrics, Boston Children's Hospital, Harvard Medical School, 2012


Pediatrics, Cleveland Clinic Hospital, 2009


MPH, Harvard School of Public Health, 2012
MD, Leiden University Medical Center, 2003



West Los Angeles

UCLA Developmental-Behavioral Pediatrics

Developmental-Behavioral Pediatrics| Cognitive and Behavioral Psychology

Hospital Affiliations

Medical Services



  • ADHD
  • Learning Difficulties
  • Feeding Difficulties


  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • L.A. Care
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • UnitedHealthcare

The list of health care plans above may not be comprehensive and could change. 
Please contact your benefits coordinator or health insurance company directly to verify coverage.

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  • Top Doctors, Los Angeles Magazine, 2022
  • Top Doctors, Los Angeles Magazine, 2021