Listed below are some commonly asked questions.  Please do not hesitate to contact us if you have any other questions.

What does a Gastroenterologist do?

A Gastroenterologist is a doctor who specialises in diagnosing and treating diseases of the digestive organs. The digestive organs include the digestive tract – oesophagus, stomach, small and large intestine – as well as the liver, pancreas, and gallbladder.

What conditions are managed by a Gastroenterologist?

  • Acid reflux
  • Constipation
  • Diarrhoea
  • Swallowing disorders
  • Inflammatory bowel disease(Crohn’s Disease and Ulcerative Colitis)
  • Coeliac disease
  • Irritable bowel syndrome (IBS)
  • Rectal bleeding
  • Nausea and vomiting
  • Unexplained abdominal pain
  • Liver disease
  • Pancreatic disease
  • Gall bladder disease
  • Unexplained weight loss

What does a Colorectal Surgeon do?

A Colorectal Surgeon is a doctor who specialises in diagnosis and treatment of the rectum, colon and anus.

What conditions does a Colorectal Surgeon manage?

  • Haemorrhoids
  • Colorectal cancer
  • Anal fissures and fistulas
  • Incontinence and constipation
  • Anal pain
  • Abscesses
  • Surgical treatment for diverticular disease, ulcerative colitis, Inflammatory Bowel disease and Crohn’s disease

How do I make an appointment?

To simply make an appointment please call the following rooms regarding which doctor you are requesting to see:

  • Dr George Marinos weight loss – 1300 859 059 or gastroenterology – 02 9398 0200
  • Prof Martin Weltman Bondi Junction or Randwick – 02 8305 0000 or Nepean Hospital 02 4734 3332
  • Prof Ron Pirola – 02 9398 0200
  • Dr Arthur Kaffes – 02 8305 0000
  • Dr Leah Gellert – 02 8305 0000
  • Dr Arthur Grillas – 02 9398 0200
  • Dr Simon Benstock – 02 8305 0000, 02 9237 2500 or 02 9398 0200

What should I bring with me to the appointment?

  • A referral letter from your General Practitioner or family doctor otherwise you will not receive a Medicare rebate
  • Medicare card, health insurance card, pension card and veterans card
  • Any x-ray reports and test results from your General Practitioner or family doctor
  • A list of all medications that you are currently taking
  • A list of any known drug allergies and the symptoms you have from taking them



Are my medical records kept private and confidential?

Yes. Your medical file is handled with the utmost respect for your privacy. Our staff are bound by strict confidentiality requirements as a condition of employment regarding your medical records. Ordinarily we will not release the contents of your medical files without your consent.

Do I need a referral to make an appointment?

Yes. This is partly to try to ensure that it is appropriate for a Gastroenterologist or Colorectal Surgeon to see you, and also because you will receive a rebate from Medicare which now you can receive the rebate back into your bank account at time of consult.

What if I need an urgent appointment?

If you are needing an urgent appointment please request your GP give us a call and we can therefore determine with your GP how quickly we need to expedite the appointment.

What should I expect when visiting the Doctor?

Your first visit to see one our trained Specialist or Surgeon will involve studying your medical files that we have received from your General Practitioner or family doctor. Your Doctor may then prescribe some diagnostic tests. During your initial visit, your doctor will explain the specific test/s or procedure/s that you may need, and discuss major risks and benefits associated with them. A physical exam will be completed and a series of questions will also be asked of you.
Once the diagnostic tests are completed your doctor will determine your diagnosis, discuss the results with you and advise appropriate treatment (if required).

Will my insurance cover all my treatment?

Our Gastroenterologists agree to send your account to your private health insurance (known as ‘No Gap’).

However due to our Colorectal Surgeons performing more complex surgeries you may have out of pocket expenses which will be discussed with you at time of consult.

You should contact the day surgery where your procedure is being done to ensure that your private health insurance will cover all aspects of your care including Anaesthetist. Depending on the level of your cover, there may be an excess amount to pay at time of procedure or surgery.