Central Lakes, Dunedin - South Otago, Southland, Waitaki > Private Hospitals & Specialists >
Southern Weight Loss & Laparoscopy - Mark Grant - General, Upper GI and Bariatric Surgeon
Private Service, General Surgery, Bariatric (Weight Loss) Surgery
Description
Southern Weight Loss & Laparoscopy is the surgical practice of Mark Grant, a Dunedin-based General, Upper Gastrointestinal (Upper GI), and Bariatric Surgeon providing specialist care across Dunedin, Invercargill, Queenstown, Wānaka, Otago and Southland.
The practice delivers comprehensive surgical care with a strong focus on weight loss (bariatric) surgery, alongside the management of upper gastrointestinal conditions, including reflux disease (GORD), hiatal hernia, and disorders of the oesophagus and stomach.
Mark has over ten years' experience in bariatric surgery and specialises in treating obesity as a chronic medical condition, offering both surgical and non-surgical treatment options tailored to the individual.
In addition to bariatric care, Southern Weight Loss & Laparoscopy provides expert management of gallbladder disease, hernias, and a range of general surgical conditions, using minimally invasive (laparoscopic) techniques where appropriate.
The service is built around an education-first, multidisciplinary approach, working closely with experienced dietitians and psychologists to support patients before and after surgery, with a focus on safe, sustainable, long-term outcomes.
The Southern Weight Loss & Laparoscopy website has been developed as a comprehensive information resource for patients and families considering surgery.
Southern Weight Loss & Laparoscopy is committed to providing expert care locally, allowing patients across Otago and Southland to access specialist surgical services without needing to travel outside the region.
What does Southern Weight Loss & Laparoscopy offer?
Southern Weight Loss & Laparoscopy provides weight loss surgery, reflux surgery, hernia repair, and gallbladder surgery in Dunedin, with care available to patients across Otago and Southland.
What are the main procedures performed?
Common procedures include gastric sleeve, gastric bypass, anti-reflux surgery (fundoplication), hiatal hernia repair, and laparoscopic gallbladder removal.
Where are patients seen?
Patients are seen in Dunedin, Invercargill, Queenstown, Wānaka and Ōamaru, with surgery performed locally.
What makes the service different?
The practice offers a multidisciplinary, education-focused approach, with structured long-term follow-up and support.
Services
Weight Loss (Bariatric) Surgery
- Gastric bypass surgery (Roux-en-Y)
- One-anastomosis (mini) gastric bypass
- Gastric sleeve surgery
- Revisional bariatric surgery
- Medical (non-surgical) weight loss options
Upper Gastrointestinal (Upper GI) Surgery
- Anti-reflux surgery (laparoscopic fundoplication)
- Hiatal hernia repair
- Investigation and management of reflux disease (GORD)
- Oesophageal motility disorders and dysphagia
- Stomach and oesophageal conditions
General & Laparoscopic Surgery
- Gallbladder surgery (laparoscopic cholecystectomy)
- Gallstones and gallbladder polyps
- Hernia surgery (inguinal, umbilical, incisional, ventral)
- General surgical condition
Staff
Helen Gibbs: is a NZ Registered Dietitian who has a specialist interest in weight management and Type 2 diabetes.
Consultants
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Mr Mark Grant
General, Upper GI and Bariatric Surgeon
Ages
Adult / Pakeke, Older adult / Kaumātua
How do I access this service?
Referral
Ask your GP for a referral to Mr Mark Grant at Southern Weight Loss & Laparoscopy.
Contact us
Referral Expectations
Fees and Charges Categorisation
Fees apply
Fees and Charges Description
Click on the links for information about the cost of surgery and finance options
Languages Spoken
English
Services Provided
Bariatric or weight loss surgery refers to a number of different procedures that can be performed to treat obesity. Procedures fall into three main types: Malabsorptive - these procedures involve bypassing a section of the small intestine thus reducing the amount of food absorbed into the body. Laparoscopic Gastric Bypass involves bypassing a section of the intestine so that less food is absorbed. Restrictive - these procedures involve reducing the size of the stomach, usually by creating a small pouch at the top of the stomach which limits the amount of food that can be eaten. Laparoscopic Gastric Banding is a surgical treatment for obesity that involves placing an inflatable cuff around the upper stomach. The cuff can be further inflated or deflated to adjust the volume of food that can be consumed. Malabsorptive/Restrictive Combination - these procedures combine both techniques e.g. gastric bypass surgery in which a small stomach pouch is formed and its outlet connected to part of the small intestine.
Bariatric or weight loss surgery refers to a number of different procedures that can be performed to treat obesity. Procedures fall into three main types: Malabsorptive - these procedures involve bypassing a section of the small intestine thus reducing the amount of food absorbed into the body. Laparoscopic Gastric Bypass involves bypassing a section of the intestine so that less food is absorbed. Restrictive - these procedures involve reducing the size of the stomach, usually by creating a small pouch at the top of the stomach which limits the amount of food that can be eaten. Laparoscopic Gastric Banding is a surgical treatment for obesity that involves placing an inflatable cuff around the upper stomach. The cuff can be further inflated or deflated to adjust the volume of food that can be consumed. Malabsorptive/Restrictive Combination - these procedures combine both techniques e.g. gastric bypass surgery in which a small stomach pouch is formed and its outlet connected to part of the small intestine.
Bariatric or weight loss surgery refers to a number of different procedures that can be performed to treat obesity. Procedures fall into three main types:
Malabsorptive - these procedures involve bypassing a section of the small intestine thus reducing the amount of food absorbed into the body.
Laparoscopic Gastric Bypass involves bypassing a section of the intestine so that less food is absorbed.
Restrictive - these procedures involve reducing the size of the stomach, usually by creating a small pouch at the top of the stomach which limits the amount of food that can be eaten.
Laparoscopic Gastric Banding is a surgical treatment for obesity that involves placing an inflatable cuff around the upper stomach. The cuff can be further inflated or deflated to adjust the volume of food that can be consumed.
Malabsorptive/Restrictive Combination - these procedures combine both techniques e.g. gastric bypass surgery in which a small stomach pouch is formed and its outlet connected to part of the small intestine.
Gallstones are formed if the gallbladder is not working properly, and the standard treatment is to remove the gallbladder (cholecystectomy). This procedure is usually performed using a laparoscopic (keyhole) approach. Laparoscopic: several small incisions (cuts) are made in the abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) is inserted. This allows the surgeon a view of the gallbladder and, by inserting small surgical instruments through the other cuts, the gallbladder can be removed. Open: an abdominal incision is made and the gallbladder removed.
Gallstones are formed if the gallbladder is not working properly, and the standard treatment is to remove the gallbladder (cholecystectomy). This procedure is usually performed using a laparoscopic (keyhole) approach. Laparoscopic: several small incisions (cuts) are made in the abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) is inserted. This allows the surgeon a view of the gallbladder and, by inserting small surgical instruments through the other cuts, the gallbladder can be removed. Open: an abdominal incision is made and the gallbladder removed.
Gallstones are formed if the gallbladder is not working properly, and the standard treatment is to remove the gallbladder (cholecystectomy). This procedure is usually performed using a laparoscopic (keyhole) approach.
Laparoscopic: several small incisions (cuts) are made in the abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) is inserted. This allows the surgeon a view of the gallbladder and, by inserting small surgical instruments through the other cuts, the gallbladder can be removed.
Open: an abdominal incision is made and the gallbladder removed.
A hernia exists where part of the abdominal wall is weakened, and the contents of the abdomen push through to the outside. This is most commonly seen in the groin area but can occur in other places. Surgical treatment is usually quite straightforward and involves returning the abdominal contents to the inside and then reinforcing the abdominal wall in some way. Hiatus Hernia: Laparoscopic: several small incisions (cuts) are made in the abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the stomach and lower oesophagus that is bulging into the chest) back into position in the abdominal cavity. The hiatus (opening) in the diaphragm (a sheet of muscle between the chest and stomach) is tightened and the stomach is stitched into place. Open: an abdominal incision is made over the hernia and the hernia is pushed back into position in the abdominal cavity. The hiatus (opening in the diaphragm) is tightened and the stomach is stitched into place. Fundoplication: during the above procedures, the top part of the stomach (fundus) may be secured in position by wrapping it around the oesophagus. Inguinal Hernia: Laparoscopic: several small incisions are made in the abdomen and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the intestine that is bulging through the abdominal wall) back into its original position. The weakness in the abdominal wall is repaired. Open: an abdominal incision is made and the hernia is pushed back into position. The weakness in the abdominal wall is repaired. Umbilical Hernia: An incision is made underneath the navel (tummy button) and the hernia (part of the intestine that is bulging through the abdominal wall) is pushed back into the abdominal cavity. The weakness in the abdominal wall is repaired. Incisional Hernia: Laparoscopic: several small incisions are made in the abdomen and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the intestine that is bulging through the abdominal wall) back into its original position. Open: an abdominal incision is made and the hernia is pushed back into position.
A hernia exists where part of the abdominal wall is weakened, and the contents of the abdomen push through to the outside. This is most commonly seen in the groin area but can occur in other places. Surgical treatment is usually quite straightforward and involves returning the abdominal contents to the inside and then reinforcing the abdominal wall in some way. Hiatus Hernia: Laparoscopic: several small incisions (cuts) are made in the abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the stomach and lower oesophagus that is bulging into the chest) back into position in the abdominal cavity. The hiatus (opening) in the diaphragm (a sheet of muscle between the chest and stomach) is tightened and the stomach is stitched into place. Open: an abdominal incision is made over the hernia and the hernia is pushed back into position in the abdominal cavity. The hiatus (opening in the diaphragm) is tightened and the stomach is stitched into place. Fundoplication: during the above procedures, the top part of the stomach (fundus) may be secured in position by wrapping it around the oesophagus. Inguinal Hernia: Laparoscopic: several small incisions are made in the abdomen and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the intestine that is bulging through the abdominal wall) back into its original position. The weakness in the abdominal wall is repaired. Open: an abdominal incision is made and the hernia is pushed back into position. The weakness in the abdominal wall is repaired. Umbilical Hernia: An incision is made underneath the navel (tummy button) and the hernia (part of the intestine that is bulging through the abdominal wall) is pushed back into the abdominal cavity. The weakness in the abdominal wall is repaired. Incisional Hernia: Laparoscopic: several small incisions are made in the abdomen and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the intestine that is bulging through the abdominal wall) back into its original position. Open: an abdominal incision is made and the hernia is pushed back into position.
A hernia exists where part of the abdominal wall is weakened, and the contents of the abdomen push through to the outside. This is most commonly seen in the groin area but can occur in other places. Surgical treatment is usually quite straightforward and involves returning the abdominal contents to the inside and then reinforcing the abdominal wall in some way.
Hiatus Hernia:
Laparoscopic: several small incisions (cuts) are made in the abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the stomach and lower oesophagus that is bulging into the chest) back into position in the abdominal cavity. The hiatus (opening) in the diaphragm (a sheet of muscle between the chest and stomach) is tightened and the stomach is stitched into place.
Open: an abdominal incision is made over the hernia and the hernia is pushed back into position in the abdominal cavity. The hiatus (opening in the diaphragm) is tightened and the stomach is stitched into place.
Fundoplication: during the above procedures, the top part of the stomach (fundus) may be secured in position by wrapping it around the oesophagus.
Inguinal Hernia:
Laparoscopic: several small incisions are made in the abdomen and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the intestine that is bulging through the abdominal wall) back into its original position. The weakness in the abdominal wall is repaired.
Open: an abdominal incision is made and the hernia is pushed back into position. The weakness in the abdominal wall is repaired.
Umbilical Hernia:
An incision is made underneath the navel (tummy button) and the hernia (part of the intestine that is bulging through the abdominal wall) is pushed back into the abdominal cavity. The weakness in the abdominal wall is repaired.
Incisional Hernia:
Laparoscopic: several small incisions are made in the abdomen and a narrow tube with a tiny camera attached (laparoscope) is inserted. Small instruments are inserted through the other cuts, allowing the surgeon to push the hernia (part of the intestine that is bulging through the abdominal wall) back into its original position.
Open: an abdominal incision is made and the hernia is pushed back into position.
This service offers support to people who are overweight or obese to reach and maintain a healthy weight. Weight loss approaches may involve diet and lifestyle changes or weight loss medications, or both may be offered.
This service offers support to people who are overweight or obese to reach and maintain a healthy weight. Weight loss approaches may involve diet and lifestyle changes or weight loss medications, or both may be offered.
This service offers support to people who are overweight or obese to reach and maintain a healthy weight. Weight loss approaches may involve diet and lifestyle changes or weight loss medications, or both may be offered.
Conditions of the gut dealt with by general surgery include disorders of the oesophagus, stomach, small bowel, large bowel and anus. These range from complex conditions such as ulceration or cancer in the bowel through to fairly minor conditions such as haemorrhoids. Many of the more major conditions such as bowel cancer will require surgery, or sometimes treatment with medication, chemotherapy or radiotherapy. Haemorrhoids are a condition where the veins under the lining of the anus are congested and enlarged. Less severe haemorrhoids can be managed with simple treatments such as injection or banding which can be performed in the clinic while larger ones will require surgery.
Conditions of the gut dealt with by general surgery include disorders of the oesophagus, stomach, small bowel, large bowel and anus. These range from complex conditions such as ulceration or cancer in the bowel through to fairly minor conditions such as haemorrhoids. Many of the more major conditions such as bowel cancer will require surgery, or sometimes treatment with medication, chemotherapy or radiotherapy. Haemorrhoids are a condition where the veins under the lining of the anus are congested and enlarged. Less severe haemorrhoids can be managed with simple treatments such as injection or banding which can be performed in the clinic while larger ones will require surgery.
Conditions of the gut dealt with by general surgery include disorders of the oesophagus, stomach, small bowel, large bowel and anus. These range from complex conditions such as ulceration or cancer in the bowel through to fairly minor conditions such as haemorrhoids. Many of the more major conditions such as bowel cancer will require surgery, or sometimes treatment with medication, chemotherapy or radiotherapy.
Haemorrhoids are a condition where the veins under the lining of the anus are congested and enlarged. Less severe haemorrhoids can be managed with simple treatments such as injection or banding which can be performed in the clinic while larger ones will require surgery.
Partial: the diseased part of the stomach is removed and the remaining section is reattached to the oesophagus (food pipe) or small intestine. Total: all of the stomach is removed and the oesophagus is attached directly to the small intestine.
Partial: the diseased part of the stomach is removed and the remaining section is reattached to the oesophagus (food pipe) or small intestine. Total: all of the stomach is removed and the oesophagus is attached directly to the small intestine.
Partial: the diseased part of the stomach is removed and the remaining section is reattached to the oesophagus (food pipe) or small intestine.
Total: all of the stomach is removed and the oesophagus is attached directly to the small intestine.
Laparoscopic: several small incisions (cuts) are made in the lower right abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) in inserted. This allows the surgeon a view of the appendix and, by inserting small surgical instruments through the other cuts, the appendix can be removed. Open: an incision is made in the lower right abdomen and the appendix removed.
Laparoscopic: several small incisions (cuts) are made in the lower right abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) in inserted. This allows the surgeon a view of the appendix and, by inserting small surgical instruments through the other cuts, the appendix can be removed. Open: an incision is made in the lower right abdomen and the appendix removed.
Laparoscopic: several small incisions (cuts) are made in the lower right abdomen (stomach) and a narrow tube with a tiny camera attached (laparoscope) in inserted. This allows the surgeon a view of the appendix and, by inserting small surgical instruments through the other cuts, the appendix can be removed.
Open: an incision is made in the lower right abdomen and the appendix removed.
The spleen is a soft fleshy organ in the upper left abdomen that is involved in the formation and cleansing of blood. It may need to be removed if it becomes enlarged, has a tumour or cyst, or in the presence of certain blood disorders. Laparoscopic: involves cutting the spleen free from its attachments and removing it through several small incisions (cuts) in the upper left abdomen. Open: an incision is made in the upper left abdomen, the diseased or damaged spleen is then separated from its attachments and removed.
The spleen is a soft fleshy organ in the upper left abdomen that is involved in the formation and cleansing of blood. It may need to be removed if it becomes enlarged, has a tumour or cyst, or in the presence of certain blood disorders. Laparoscopic: involves cutting the spleen free from its attachments and removing it through several small incisions (cuts) in the upper left abdomen. Open: an incision is made in the upper left abdomen, the diseased or damaged spleen is then separated from its attachments and removed.
The spleen is a soft fleshy organ in the upper left abdomen that is involved in the formation and cleansing of blood. It may need to be removed if it becomes enlarged, has a tumour or cyst, or in the presence of certain blood disorders.
Laparoscopic: involves cutting the spleen free from its attachments and removing it through several small incisions (cuts) in the upper left abdomen.
Open: an incision is made in the upper left abdomen, the diseased or damaged spleen is then separated from its attachments and removed.
Disability Assistance
Mobility parking space, Wheelchair access, Wheelchair accessible toilet
Parking
Free onsite parking is available.
Pharmacy
Find your nearest pharmacy here
Website
Contact Details
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Phone
(03) 464 0970
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Fax
(03) 464 0948
Email
Website
23 Cardrona Valley Road
Wanaka
Otago 9305
Street Address
23 Cardrona Valley Road
Wānaka
Otago 9305
Marinoto Clinic, 72 Newington Ave, Dunedin
Dunedin - South Otago
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Phone
(03) 464 0970
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Fax
(03) 464 0948
Email
Website
33 Arena Avenue, Invercargill
Southland
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Phone
(03) 464 0970
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Fax
(03) 464 0948
Email
Website
81 Wansbeck Street, Ōamaru
Waitaki
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Phone
(03) 464 0970
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Fax
(03) 464 0948
Email
Website
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This page was last updated at 10:56AM on March 30, 2026. This information is reviewed and edited by Southern Weight Loss & Laparoscopy - Mark Grant - General, Upper GI and Bariatric Surgeon.

