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'The Waverley’ Suite 8, Level 2, 79-85 | Oxford Street, Bondi Junction, NSW, 2022

Dr Gary Leong

Paediatric Endocrinologist, and Child and Adolescent Obesity Expert and author of award-winning book called “Ride to Life: a no-nonsense program for breaking your family’s cycle of obesity and connecting to a healthier, happier life”.

Dr Gary Leong - Expert in Endocrinology

See to obtain the “Ride to Life” book and other resources, including the monthly “Ride to Life” Health blog and the “Healthy Happy Children” podcast.

Associate Professor Gary Leong sees patients referred from specialists and general practitioners.

Dr. Leong an expert Paediatric Endocrinology has over 30 years of experience in managing childhood growth, pubertal and endocrine disorders and children and adolescents with Type 1 and Type 2 diabetes. 

He received his paediatric and endocrine training at the Prince of Wales Children’s Hospital, Randwick (now the Sydney Children’s Hospital) and the former Royal Alexandra Hospital for Children’s Hospital, Camperdown, before undergoing 3 years of clinical and research training in paediatric endocrinology at the National Institutes of Health in Bethesda, Maryland, USA. 

He obtained his PhD from UNSW in 2001 in Molecular Endocrinology and Vitamin D action under the supervision of Professor John Eisman, AO at the Garvan Institute of Medical Research,

From 2004 to 2017 he was a Senior Staff Specialist in Paediatric Endocrinology and Diabetes at the Mater Children’s Hospital and then the new Queensland Children’s Hospital in Brisbane. During this time he held a QLD Senior Research Fellowship at the Institute for Molecular Bioscience (IMB), The University of Queensland. He also held a NHMRC Clinical Career Development Award, a NHMRC Health Professional Fellowship and received several other national and international clinical research awards for his research into child growth and obesity.

Since December 2016 Dr Leong has been a Senior Staff Specialist in Paediatric Endocrinology and Diabetes at the Nepean Hospital in Western Sydney. This position is associated with an academic appointment at the University of Sydney through the Nepean Charles Perkins Centre Research Hub where he conducts clinical research into child obesity, diabetes and metabolism. 

Dr Leong is the Paediatric Clinical Lead in the unique whole of life span Nepean multidisciplinary Family Metabolic Health Service at the Nepean Hospital and Nepean Blue Mountains Local Health District. He is also the Head of Paediatric Diabetes services at the Nepean Hospital.

He has memberships of several national and international paediatric endocrine and research societies and was the last Chair of the Australasian New Zealand Paediatric Endocrine and Diabetes Society (ANZPEDS) Growth Hormone Advisory Committee, which helped the Federal Department of Health provide expert advice on children with short stature treated with growth hormone therapy.

Dr. Leong was a member of the NHMRC Research Translation Faculty.

Dr. Leong sees infants, children and adolescents with disorders of growth and puberty and metabolism, including:

  • Short stature
  • Early and delayed puberty
  • Disorders of the pituitary gland
  • Thyroid disorders (hypothyroidism and hyperthyroidism)

Lifestyle and metabolic disorders such as children and adolescents with severe obesity, insulin resistance and Type 2 Diabetes Mellitus.

Dr Leong does not see children with type 1 diabetes or children with gender dysphoria syndrome at The Children’s Clinic. These children require multidisciplinary care and should be seen at one of the major tertiary children’s hospitals in NSW.

Medical Professionals | Diabetes in Children

As a paediatric endocrinologist I have treated hundreds of children and families at public and private clinics in Sydney and Brisbane, and delivered educational and keynote talks to medical professionals in Australia and internationally.

My single driving passion is to provide families with practical ways to break the transgenerational cycle of obesity so they can enjoy happier and healthier lives.Without a change in the way we approach the management of children and families with obesity more and more of our patients will develop chronic diseases, such as type 2 diabetes, cardiovascular and liver disease and major mental illnesses. I have discovered through my clinical and educational work that it is so important that the emotional, mental and socio-cultural aspects of the disease be considered as this affects how parents teach and lead their children how to live healthy and active lives. A holistic approach is essential.

I urge you to join me in the fight against obesity and type 2 diabetes. Here’s some practical ways I can help you do that.

Dr Gary Leong won a SILVER “Thought Leader of the Year” Stevie award in 2023

“Ride to Life” was a Finalist (one of 3 books) for the 2020 Australian Business Books Award (ABBA). 

“Ride to Life” won the 2020 ABBA Health and Well-being Book Category.


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