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Mr Hisham Hammodat - General, Laparoscopic & Bariatric Surgeon

Private Service, General Surgery, Bariatric (Weight Loss) Surgery


Dr Hisham Hammodat has a long experience in all areas of general surgery. He has a special interest in Bariatric (weight loss) surgery for morbid obesity.

His other areas of interest include:

  • Laparoscopic hernia and gall bladder surgery
  • Pilonidal disease
  • Skin & soft tissue conditions including melanoma
  • Ano-rectal conditions

Hisham is a consultant surgeon at Waitemata DHB and consults in private at Waitemata Specialist Centre, Milford.

He is also a Southern Cross affiliated provider.

What is General Surgery?
The role of the general surgeon varies but in broad terms general surgery can be said to deal with a wide range of conditions within the abdomen, breast, neck, skin and, sometimes, the vascular (blood vessel) system.
While the name would suggest that the focus of general surgery is to perform operations, often this is not the case. Many patients are referred to surgeons with conditions that do not need surgical procedures, but merely require counselling or medical treatment.

What is Laparoscopic Surgery?
Laparoscopic (or keyhole) surgical procedures are performed through several small cuts (incisions) usually only 5-10mm long, rather than through one large incision.
A long, narrow surgical telescope (laparoscope) that has a tiny camera and light source attached, is inserted through one of the incisions so that the surgeon can view the inside of the body on a TV monitor.
The surgeon then passes specially designed surgical instruments through the other incisions and carries out the procedure using the TV monitor to guide the instruments.
Laparoscopic surgery is usually associated with less blood loss during surgery and less pain and scarring following surgery. In most cases, time spent in hospital is less and overall recovery time from the operation is less than with conventional open surgery.
What is Bariatric Surgery?
Bariatric or weight loss surgery is a term that covers all the different surgical procedures used to help extremely overweight or morbidly obese patients lose weight.
Morbidly obese patients are usually identified by their Body Mass Index (BMI) measurement, although other factors may also be taken into account.
Morbid obesity is associated with an increased risk of developing illnesses such as: heart attack, hypertension, stroke, diabetes, sleep disorders and joint pain. Bariatric surgery can cure or greatly improve these illnesses as well as give the patient an improved quality of life.
Surgical procedures fall into three main types:

- these procedures involve bypassing a section of the small intestine thus reducing the amount of food absorbed into the body, e.g. the jejuno-ileal bypass.
Restrictive - these procedures involve reducing the size of the stomach which limits the amount of food that can be eaten, e.g. the sleeve gastrectomy and the adjustable gastric banding.
Malabsorpive/Restrictive - these procedures combine both techniques, e.g. the duodenal switch and the gastric bypass.


Referral Expectations

When you come to your appointment, your surgeon will ask questions about your illness and examine you to try to determine or confirm the diagnosis. This process may also require a number of tests (e.g. blood tests, x-rays, scans etc). Sometimes this can all be done during one visit, but for some conditions this will take several follow-up appointments. Occasionally some tests are arranged even before your appointment to try to speed up the process.
Once a diagnosis has been made, your surgeon will discuss treatment with you. In some instances this will mean surgery, while other cases can be managed with medication and advice. If surgery is advised, the steps involved in the surgical process and the likely outcome are usually discussed with you at this time.


Dr Hammodat is a Southern Cross affiliated provider for certain services.

Common Conditions / Procedures / Treatments

  • Laparoscopic Duodenal Switch Operation

    The Duodenal Switch is one of the most successful bariatric (weight loss) operations.… More

  • Laparoscopic Sleeve Gastrectomy

    The sleeve gastrectomy is a purely restrictive operation. In this procedure, the surgeon creates a narrow tube from the stomach and removes the remainder.… More

  • Gallstones

    General surgery covers some disorders of the liver and biliary system.… More

  • Hernias

    A hernia exists where part of the abdominal wall is weakened, and the contents of the abdomen push through to the outside.… More

  • Skin Disorders - Including Melanoma

    Skin conditions dealt with by general surgery include lumps, tumours and other lesions of the skin and underlying tissues.… More

  • Pilonidal Sinus


  • Haemorrhoids

    Haemorrhoids are a condition where the cushion of veins in the lining of the anus are congested and enlarged.… More

  • Perianal Abscess and Fistula

    A perianal fistula is a collection of pus under the skin next to the anal canal (back passage).… More

  • Anal Fissure

    An anal fissure is a split of the skin of the anal canal (back passage) that causes bleeding or pain on passing a bowel motion.… More


Free off street patient parking is provided at my clinics.

Contact Details

  • Phone

    (09) 441 2750

  • Fax

    (09) 441 2759

  • Healthlink EDI


Waitemata Specialists Centre
15 Shea Terrace

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Street Address

Waitemata Specialists Centre
15 Shea Terrace

Postal Address

Waitemata Specialists Centre
15 Shea Terrace

This page was last updated at 10:33AM on April 6, 2021. This information is reviewed and edited by Mr Hisham Hammodat - General, Laparoscopic & Bariatric Surgeon.