Prof Gary Leong is an endocrinologist and paediatric endocrinologist based in Bondi Junction, NSW. He works out of The Waverley, Suite 8, Level 2, 79-85 Oxford Street, Bondi Junction NSW 2022.
Endocrinology is about the hormones that help the body run day to day. In clinic, Prof Leong looks after people who need help with hormone-related health issues. That can include kids and teens, as well as adults, depending on what’s going on.
Many patients come in with questions around diabetes and blood sugar control. Others are referred for thyroid problems, where hormone levels can affect energy, weight, mood, and overall wellbeing. He also helps with hormone level testing, which can be important when symptoms are a bit unclear or when a doctor wants to double-check what’s happening.
At times, people also need assessment of the adrenal gland, especially when there are concerns about stress hormone balance. These are often complex problems, and the process can take time. Prof Leong focuses on clear explanations and practical next steps, so families know what each test is for and what the results could mean.
He has experience working with hormone health across both paediatric and adult care. Over time, this gives him a good feel for how different age groups present symptoms, and how families usually want a plan that’s realistic for everyday life. In many cases, the goal is to find the cause, then bring hormone levels into a safer range with careful follow-up.
His medical education includes endocrinology and paediatric endocrine care, with ongoing learning as guidelines and testing methods change. He also stays across research in a general way, and will use that knowledge to support the most sensible care plan for the person in front of him.
Clinical trials aren’t always the right option for everyone. If a trial is relevant and available through other services, Prof Leong can discuss it as part of the bigger picture, alongside standard care.
Prof Leong speaks English and Cantonese (including Cantonese-speaking families). That can make consultations easier when medical terms feel overwhelming, especially for children and parents trying to work out what to do next.