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What we do

The Central Region Metabolic and Bariatric Service (CRMBS) provides weight loss surgery and management for patients across the Wellington, Hutt Valley, Wairarapa, Midcentral and Whanganui regions.

There are many reasons why you may be referred for weight loss surgery:

  • You weight less than 160kg and your Body Mass Index (BMI) is less than 55.
  • Your BMI is greater than 35 and you have other medical conditions such as diabetes, sleep apnoea, hypertension, high amounts of cholesterol in the blood (hypercholesterolaemia), infertility, or arthritis.
  • You are a non-smoker.


You need to be referred to our service by a medical doctor – your GP will usually do this.  You’ll be asked to fill in an assessment questionnaire before you are referred.

You should discuss your options for managing your weight with your GP. They can talk to you about whether weight loss surgery is the right option for you.

When your GP refers you, your referral will be assessed by the DHB closest to where you live, before the referral is sent to the team at Wellington Regional Hospital.

Each referral is reviewed and scored against a national scoring system so that referrals can be prioritised.

Our team

During your visit to Wellington Regional Hospital you will meet:

  • Surgeons – a surgeon who specialises in weight loss surgery is called a Bariatric Surgeon.

Contact Us

We’re based at Wellington Regional Hospital.

Ph 04 385 5999



Last updated 10 September 2020.