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Glass Buildings

Our Doctors

Dr Colin Tso is a highly trained cardiologist often commended for the care he shows to his patients and his detailed approach in diagnosis. The patience and thoroughness shown by Dr Tso in managing complex cases are appreciated by many GPs and patients.

A registered and experienced CT coronary angiography specialist, Dr Tso has obtained the highest credentialing in cardiac CT (Level B) in Australia. 


Dr Tso is a graduate of Sydney University, completing his cardiology training at Westmead Hospital and receiving his PhD from the University of Sydney in the study of vascular injury and endothelium turnover. Dr Tso has extensive experience in basic vascular biology research - including in-stent re-stenosis and coronary atherosclerosis.  ​

He was a post-doctoral research fellow at the Health Science and Technology Division, jointly operated by Harvard University, Harvard Medical School and the Massachusetts Institute of Technology (MIT), USA.


Upon returning to Sydney, Dr Tso performed pioneering work at the Heart Research Institute studying the contribution of endothelial progenitor and blood monocytes to endothelial turnover and atherosclerosis. His work is highly cited and led to his Royal Prince Alfred Hospital Cardiologists' Young Achiever Award for Excellence in 2006.

Dr Tso’s current research interests include quantitating subclinical coronary atherosclerosis using cardiac CT and lipid management.

Dr Colin Tso CT Heart Clinic

Dr Colin Tso


Clinical Senior Lecturer, Australian National University

Clinical Senior Lecturer, University of Sydney

Dr Tso speaks fluent Cantonese and understands Mandarin.

Admitting Rights

San Hospital, Wahroonga 

(Sydney Adventist Hospital) 

Macquarie University Hospital, Macquarie Park

Dr Juan Mundisugih


Dr Mundisugih is fluent in Bahasa Indonesia and has a proficient understanding of Bahasa Malay.

Dr Juan Mundisugih is a well-rounded Australian trained cardiologist who always treats his patients with the care and compassion they need. He strives to enhance patient care and outcomes through innovative research, extensive training, and hands-on clinical experience.


His journey began with a Bachelor of Medicine and Bachelor of Surgery from the University of Adelaide, followed by physician training at the Alfred Hospital, Victoria, where he actively contributed to the advanced heart failure team. He subsequently completed his specialty cardiology training at Lyell McEwin Hospital, South Australia and was admitted as a Fellow of the Royal Australasian College of Physicians (FRACP) in 2023. 


The pursuit of knowledge has always been at the forefront of his professional journey. His involvement in a Master of Clinical Ultrasound at the University of Melbourne and in the CEPIA Graduate Diploma of Cardiac Electrophysiology further honed his skills and deepened his understanding of cardiovascular disorders. Presently, Dr Mundisugih holds the position of honorary Electrophysiology Clinical and Research Fellow at Westmead Hospital and The Westmead Institute for Medical Research. He is also currently pursuing a Doctor of Philosophy degree at the University of Sydney, focusing his research on the potential impact of gene therapy in the realm of ventricular arrhythmia management.

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