Meet the Team

Surgical Weight Solutions believes wholeheartedly in a team-based philosophy lead by Mr Michael Booth. 


Our vision has always been to create class-leading comprehensive support from the initial consultation through two years post-op. 

We have a team of leading professionals willing to offer the support on your journey.

Surgical Weight Solutions Team-5_edited_edited.jpg

Mr Michael Booth

Our Surgeon - MBChB MBA FRACS

Michael Booth is an experienced upper gastrointestinal surgeon who deals with the investigation and management of diseases of the oesophagus, stomach, pancreas, gallbladder and biliary tree.


He has had an interest in weight loss surgery since he worked with Richard Stubbs at the Wakefield Gastroenterology Clinic in Wellington. In 2001 he set up the Bariatric Surgical Unit at Waitemata District Health Board and soon after established Surgical Weight Solutions.


Michael has a public surgical appointment as an Upper Gastrointestinal Surgeon at the Waitemata District Health Board (North Shore and Waitakere Hospital). In his private practice he consults at the Waitemata Specialist Centre.


He is an experienced open and laparoscopic surgeon and endoscopist. He offers weight loss surgery, surgery for reflux disease, gallstones as well as laparoscopic and open hernia repair. He also performs upper GI endoscopy.

View video interview with Michael.


Catherine Kissel

Our Psychologist - Psychologist (Regd), MA (Hons) Psychology, Cert Counselling

Catherine is a registered psychologist with a specialist interest in addictive behaviours and mental health. Catherine has most recently worked in Waitemata DHB mental health and addictions services in a clinical leadership role. She has lectured in clinical courses at AUT and the University of Auckland and maintains a position as an external examiner with the university.

Catherine has worked with Surgical Weight Solutions since 2005. She regularly attends conferences, updating her knowledge base and maintains international contacts in the field.

Catherine is available for support and consultation throughout the process of weight loss, from the time of deciding to have surgery through to troubleshooting in the future. This includes presurgical preparation, support post-surgery to achieve your goals and through the transition phase into durable long-term weight loss.

Catherine facilitates the monthly support group and looks forward to meeting with you.

View video interview with Catherine.

jr (1).jpg

Mr Jason Robertson

Our Surgeon

Jason Robertson is a New Zealand trained Bariatric, Upper Gastrointestinal and Laparoscopic surgeon. He is a consultant surgeon at Waitemata District Health Board and consults in private at Waitemata specialist centre and Waitemata Endoscopy - West.

After completing advanced training in general surgery, Jason continued his subspecialist training as an accredited fellow of the formal Australia & Aotearoa New Zealand Gastric and Oesophageal Surgery Association (AANZGOSA) post-fellowship program, undergoing a further three years of high-volume upper gastrointestinal and bariatric subspecialisation in Australia and New Zealand. During this time Jason worked closely with leaders in the field of bariatric surgery, gaining comprehensive expertise in the surgical management of obesity. 


Jason is the only surgeon in New Zealand offering the complete range of internationally recognised bariatric operations (including the SADI-S). His personalised approach ensures you select the best surgical option for achieving your weight loss goals.

Jason’s research interests include weight regain after sleeve gastrectomy and complex antireflux surgery.


Ella Smits

Our Dietitian - Registered Dietitian, PgDip, BSc

Ella is a registered dietitian who currently works in private practice. She began her training at Massey University gaining a BSc in Human Nutrition and Sport and Exercise Science. Ella then moved to Perth to study a Postgraduate Diploma in Nutrition and Dietetics at Curtin University of Technology.

Ella initially began her working life as a clinical dietitian for Albany Health Campus in Western Australia, she then moved to Melbourne where she was the sole dietitian working across two private hospitals and multiple aged care facilities. Within these roles Ella gained experience in a vast range of areas including surgical, gastroenterology, diabetes, oncology, critical care and general medical. Ella has recently joined us from Tauranga Hospital, in the Bay of Plenty, where she worked as an outpatient clinical lead dietitian (specialising in oncology and bariatrics). Ella brings her passion for promoting positive behaviour change within the area of bariatrics, using an evidenced based and person-centred approach.

Surgical Weight Solutions Team-11_edited.jpg

Lyn Pearless

Nurse Specialist

Lyn is a registered nurse in public and private practice who has worked in a variety of disciplines. Qualified as a Comprehensive Nurse, completed BSc (Nursing), Post Graduate Certificate (Critical Care) and Master Nursing (Hons).

Lyn has been working with Michael Booth since 2003 with the practice having a multidisciplinary focus in line with Centre of Excellence principles

My strengths within the bariatric practice:

  • Patient focus, pre and post operative during weight loss journey

  • Research for a client centred evidence based approach.

  • Papers published with Michael Booth

  • Member ANZMOSS (Australian & New Zealand Metabolic and Obesity Surgery Society).

View video interview with Lyn.


Kelly Clark

Our Practice Manager

Kelly was born in South Africa, and did her early adult years in the UK before coming to NZ in 2002 with her husband of 33 years. She has 2 adult daughters, a son and 5 mokopuna.

Kelly joined the practice in 2022 and has worked in customer service all of her life.

She is passionate about delivering excellence to patients.

sample_touchup03 (1) (2)_edited.png

Robyn Lees