Dr Nigel Rajaretnam

Dr Nigel Rajaretnam Consultant Upper GI, Bariatric, Endocrine and General Surgeon Nigel Rajaretnam graduated with Honours from Trinity College Dublin, Ireland in 2008.

He began his surgical training in Ireland, as part of the Basic Surgical Training (BST) and Basic Specialist Training (BSpT) programs. He became a member of the Royal College of Surgeons in Ireland in 2011. He then sought further training opportunities in New Zealand in 2012. He obtained his Fellowship of the Royal Australasian College of Surgeons in 2019. He undertook further post fellowship spec

ialist training in Endocrine and Bariatric Surgery in Waikato Hospital in Hamilton in 2019. After completion of the Fellowship, he worked as a Consultant Surgeon at Waikato Hospital. Nigel then left New Zealand in 2021 with his young family to move back to Dublin for a year for a much coveted Fellowship position. He was the Fellow in Upper GI Surgery at the National Centre for Oesophageal and Gastric Cancer at St James's Hospital, Dublin. His fellowship was focused on Surgery for Upper Gastrointestinal cancers and Interventional Endoscopy. He was appointed as an Assistant Professor in Surgery at Trinity College, Dublin, during this Fellowship. To date - this is one of the proudest moments in Nigel’s academic career - to be back in Trinity College, contributing to the same medical school that trained him. Nigel is a Consultant Surgeon with specialty interest in Upper GI Surgery and Endocrine Surgery. He is excited to be able to offer clinical knowledge and skills to patients both at Intus Dunedin and at Te Whatu Ora(Southern), Dunedin Hospital. For more information on his research projects, please see his ResearchGate profile. He is also a Clinical Senior Lecturer in the School of Medicine with the University of Otago.

08/07/2026

At Intus Dunedin, weight management care is built around a multidisciplinary team model where specialists work together closely to support each patient.

Led by Dr. Nigel Rajaretnam, this team comprises of surgeons, bariatric physician, plastic surgeon, hepatologist, gynaecologists through to bariatric specialist nurses, dietitians, psychologists, and our experienced administration team, everyone plays a role in helping patients achieve sustainable health outcomes.

With options ranging from medication and lifestyle support, through to endoscopic and surgical procedures, care is personalised rather than one-size-fits-all. Having this level of expertise and support available within one clinic creates a more connected and supportive patient experience.

02/07/2026

Starting weight-loss medication without the right medical advice can lead to unrealistic expectations or unnecessary risks.

Factors such as existing health conditions, medications, eating patterns, and long-term goals all need to be considered carefully before treatment begins.

At Intus Dunedin, our bariatric specialist, Dr. Nigel Rajaretnam leads the weight management care team, focusing on finding the safest and most appropriate approach for each individual.

This team approach includes ongoing specialist nurse, nutrition and psychology support, helping patients navigate the lifestyle changes needed for long-term success.

One thing I learned during my fellowship training is that the best metabolic/bariatric services are never built around o...
23/06/2026

One thing I learned during my fellowship training is that the best metabolic/bariatric services are never built around one clinician.

They are built around teams. This is our Integrated Health Team here at Intus Dunedin.

Proud to work alongside an incredible group of specialists committed to delivering modern obesity and metabolic care here in the lower South Island.

20/06/2026
I really enjoyed presenting at the Uni of Otago Medical Grand Rounds today !It allowed me to speak about obesity - touc...
16/06/2026

I really enjoyed presenting at the Uni of Otago Medical Grand Rounds today !

It allowed me to speak about obesity - touching on the inherit biases, stigma but also biology and options for treatment.

We talked about Surgery and also the medication options, bringing a my experience from my fellowships at , and . It made for excellent discussion points and glad to see a great turnout!



A little behind the scene look at hour our Weight Loss Care team at Intus spends their Saturday afternoon !Exciting upda...
13/06/2026

A little behind the scene look at hour our Weight Loss Care team at Intus spends their Saturday afternoon !

Exciting update to our website and socials coming soon !

Looking forward to speaking at the Dunedin Hospital Grand Rounds on modern obesity care.This has changed significantly a...
11/06/2026

Looking forward to speaking at the Dunedin Hospital Grand Rounds on modern obesity care.

This has changed significantly and it is important to approach this with science, compassion and without blame .

11/06/2026

Comprehensive, multidisciplinary weight loss care at Intus Dunedin — including medical management, GLP-1 therapies (Wegovy, Mounjaro) and bariatric surgery options. A team of doctors, dietitians, psychologists and nurses supporting your goals.

Address

89 Great King Street
Dunedin
9016

Telephone

+6439775977

Website

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