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Mr Jason Winnett


  • General Surgery
  • Laparoscopic
  • Upper Gastrointestinal

Mr Jason Winnett is the founder and director of The Winnett Specialist Group, which was founded in 2001. He has specialist qualifications in a number of areas, and per­forms the following surgical procedures at The Winnett Specialist Group:

  • The LAP-BAND® System / Gastric Banding Procedure
  • Orbera Intragastric balloon
  • Endoscopic Sleeve Gastroplasty
  • Upper GI Surgery
  • Hepatobiliary Surgery
  • Colorectal Surgery
  • Vasectomy Surgery

As a specialist in these fields, Jason’s primary areas of expertise include laparoscopic adjustable gastric banding, laparoscopic ingui­nal, femoral, incision hernia repair, laparoscopic cholecystec­tomy, laparoscopic appendicectomy and laparoscopic colorectal surgery.

A practicing surgeon with over 23 years experience, Jason Winnett has performed over 1700 weight-loss surgical procedures, 15,000 endoscopic procedures and has successfully treated thousands of patients with obesity, or weight-related issues.

Jason has a reputation for his excellent personable skills, which, when combined with his expertise and knowledge in his field gives him a wonderful bedside manner that countless patients have commented on.

In a discipline where many surgeons are very clinical, and simply view their patients as a “case number”, Jason is an exception. He likes to learn about his patients – their families, their lifestyle, their hobbies, where they work – because this not only helps him to form a far more accurate picture of the individual he is treating, but it helps put his patients at ease.

Undergoing any surgical procedure can be a very confronting, even traumatic experience for some individuals; Jason understands this and he strives to make the entire process as easy as possible for his patients, which not only helps to reduce their anxiety toward the procedure itself, but creates an immediate sense of trust between patient and doctor, a connection that is imperative when a patient is required to place their faith in a surgeon who is about to perform a complex procedure on them.

Educational History

  • University of Melbourne


  • Bachelor of Medicine & Bachelor of surgery MB;BS (1993)
  • FRACS – General Surgery (2001)
  • Certificate in laparoscopic adjustable gastric banding (2004)
  • Advanced Certificate in Laparoscopic Adjustable Gastric


  • The Medical Board of Victoria.

Jason is a fellow of the Royal Australasian College of Surgeons and is a member of the Australian Medical Association. He is also a member of the Gastrointestinal Society of Australia and a Post Graduate of the Medical Council of Victoria.

He is also a member of the ANZMOSS; The Australian and New Zealand Metabolic and Obesity Surgery Society.

Jason has appointments to the Medical Advisory Boards of the Western Private, and Epworth Freemason Hospitals and is a Medical Director of Hobson Healthcare.

Aside from being one of the most respected and accomplished surgeons in his field, Jason is committed to not just treating a disease, or performing a procedure.

His understanding of the sorts of emotional responses individuals can undergo when considering elective or necessary surgical procedures sets him apart from many of his contemporaries and allows him to put people at ease and give them the confidence that they have made the right decision for their health and wellbeing.

Hobson Healthcare - Altona

Cnr Queen & Sargood Street, Altona VIC 3018

Phone: 03 9398 8800
Fax: 03 9398 8822
Hobson Healthcare - Werribee

179 Princess Street, Werribee VIC 3030

Phone: 03 9731 8000
Fax: 03 9731 8001
Hobson Healthcare - Sydenham

566 Melton Highway, Sydenham VIC 3037

Phone: 03 8361 6400
Fax: 03 8361 9700

We also provide open access endoscopy at our Sydenham site. Accredited medical practitioners can make a referral by visiting our Referrals to Specialists page.

Winnett Specialist Group
382 Victoria Parade, East Melbourne VIC 3002
Phone: 03 9417 1555
Fax: 03 9417 1200