Professor Paul O’Brien AO


Professor Paul O’Brien is a world leader in bariatric surgery in general and in the Lap-Band procedure in particular. He began doing gastric stapling procedures including gastric bypass in the early 1980s. He was one of the originators of the Lap-Band, having been involved in its design since 1991 and placed the first Lap-band in Australia in 1994. Professor O’Brien no longer operates but is still involved with CBS.

He is the head of the Centre for Bariatric Surgery (CBS). This is the most active clinical service for weight loss surgery in Australia.  He is now Emeritus Professor of Surgery at Monash University. He was Head of the University’s Department of Surgery at the Alfred Hospital for nearly 20 years. His current principal areas of clinical and research interest are in the morbidity of obesity and the health benefits of weight loss. He founded the Centre for Obesity Research and Education (CORE) at Monash University in 2004 and is now its Emeritus Director. He has been the National Medical Director of the American Institute of Gastric Banding, a multicenter clinical facility based in Texas, USA, for 8 years to 2015. He is Past President of the Obesity Surgery Society of Australia and New Zealand (1997-2004) and a past member of Council of the International Federation for the Surgery of Obesity. He is the Advisory Editor of the journal “Obesity Surgery “.

He has published more than 300 papers in the medical literature and has been actively involved in conducting postgraduate courses and workshops on obesity and its treatments in Australia, Europe, USA, Asia-Pacific countries, South America and Canada for the past 20 years.

Our Surgeons

  • Professor Paul O’Brien AO

    Monash University Emeritus Professor of Surgery and Emeritus Director of the Centre for Obesity Research and Education (CORE). In 2017 he was awarded Officer (AO)...

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  • Professor Wendy Brown

    Monash University Professor of Surgery and Director of The Centre for Obesity Research and Education (CORE), Centre for Obesity Research and Education, at the Alfred...

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  • Mr Andrew Packiyanathan

    Mr Andrew Packiyanathan is a general and upper gastrointestinal surgeon with a special interest in bariatric (weight loss) surgery. He also has an interest in...

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  • Mr Stewart Skinner

    Senior Lecturer Monash University Department of Surgery, Visiting Surgeon at The Alfred Hospital and at also Frankston Hospital.

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  • Mr Andrew Smith

    A Senior Lecturer Monash University Department of Surgery, Visiting surgeon at the Alfred Hospital.

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  • Mr Damien Loh

    Damien is an upper gastrointestinal and bariatric surgeon who graduated from University of Melbourne in 2002 and has been a Fellow of the Royal Australasian...

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Aftercare Physicians

  • Dr Caroline Lloyd

  • Dr Samantha Green

  • Dr Audrey Kotzander

  • Dr Anna Korin

  • Dr Karina Stolyarsky

  • Dr Paul MacCartney

Specialist Physician

  • Dr John Wentworth

Clinical Psychologist

  • Assoc. Professor Leah Brennan


  • Helen Bauzon