About us

Mr Jon Armstrong - Bariatric Surgeon Perth

My name is Jon Armstrong and at Advance Surgical I specialise in bariatric or weight loss surgery. When I established the clinic my motivation was to help those who find that diet and exercise are simply not working for them.

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We are not a big group and some like to call it boutique-style consultations. For me it boils down to being available and approachable for you as a patient, and to building a relationship of trust as we embark on your weight loss journey together.

As a bariatric surgeon I value an ethical approach to weight loss surgery and for me that means taking the time to help you understand the process. For me, it is essential to make sure that you have a clear understanding of the procedure and the lifestyle changes that you can make for sustained weight loss.

All Before & Afters
bariatric surgeon Perth

Dr. Jon Armstrong

Bariatric Surgeon


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dr sarrah harris GP bariatric assessor

Dr Sarah Harris

GP Bariatric Assessor


Nadia practice manager


Practice Manager

Dip Applied Science (Diagnostic Radiography)

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Margaret Hays dietitian with bariatric surgeon Jon Armstrong

Margaret Hays


Bsc (Nutrition), Grad Dip (Dietetics), Grad Dip (Diabetes Education)

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Anne Marie Stanley dietitian with bariatric surgeon Jon Armstrong

Anne Marie Stanley


BSc, Grad Dip (Dietetics), APD, AN


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Sarah Flanagan dietitian with bariatric surgeon Jon Armstrong

Sarah Flanagan


BSC, Grad Dip (Dietetics), MDAA, APD, AN


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Melanie Greenfeld psychologist

Melanie Greenfeld

Specialist Psychologist

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Shirley Armstrong secretary

Shirley Armstrong


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Sandi Robinson exercise physiologist

Sandi Robinson

Exercise Physiologist and Dexa Operator


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Contact Advance Surgical


Hollywood Medical Centre Suite 8, 85 Monash Avenue Nedlands WA 6009 (Perth)


+61 8 9386 2634


+61 8 9386 2167


Monday - Friday: 9am - 5pm