Dr Winston Oo


Consultant Paediatrician

Dr Winston Oo

Dr Winston Oo is a passionate General Paediatrician trained across the Sydney Children’s Hospital network. 

Dr Oo earned a Distinction in Paediatrics when he graduated from the University of Medicine, Mandalay, Myanmar in 2006. He joined the Paediatric training in Australia after completing the Australian Medical Council (AMC) Certificate. He subsequently obtained a Diploma in Child Health (South Australia) before completing a Master of Clinical Medicine (Leadership and Management) - CLAM. He is a current Fellow of the Royal Australasian College of Physicians (FRACP) in Paediatrics and Child Health.

Dr Oo is an all-rounder General Paediatrician, also fluent in Mandarin, provides patient-centred care for families. He is friendly, approachable and dedicated to providing excellent care to ensure safety for his patients. He strives to listen and help families achieve the best outcomes for their children and is dedicated in working in a multidisciplinary team. He has helped children from family with bilingual background to get the appropriate therapy for early intervention and funding if it is eligible.

Dr Oo is particularly interested in developmental issues such as speech delay, learning difficulty and Autism Spectrum Disorder (ASD). Speech/language delay in children is common: up to 19% had isolated language delay and 6.7% had both speech and language delay. If the problem is not picked up timely, “recent research has shown that, on average, 2 children in every class of 30 will experience DLD (Developmental Language Disorder*) severe enough to hinder academic progress.” Given the complexity of the problem, Dr Oo will conduct a thorough assessment and necessary investigations, seek information from school and link in with allied health team for therapy.

Dr Oo also has had extensive experience in general paediatric issues include: common newborn issues, including feeding difficulties, Gastro-oesophageal reflux (GOR) and tongue tie; long-term follow-up of premature newborns who required Neonatal Intensive Care; bowel and bladder problems such as chronic constipation and bed wetting (including alarm therapy); and healthy weight and lifestyle issues. 

Dr Oo is involved in teaching and supervision and received an “Outstanding Student Teaching Award” from Sydney Medical School, The University of Sydney, Nepean Hospital.


  • MBBS, University of Medicine Mandalay (Myanmar).
  • Diploma of Child Health, South Australia.
  • Fellow of the Royal Australian College of Physicians (FRACP).
  • Master of Clinical Medicine (Leadership and Management).
  • Professional Memberships.
  • Royal Australian College of Physicians (Paediatric and Child Health).


  • Visiting Medical Officer, Paediatrician at Ryde Hospital.
  • Visiting Medical Officer, Paediatrician at Nepean Private Hospital.

* Developmental Language Disorder is diagnosed when children fail to acquire their own language for no obvious reason.