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Gastroenterology & Endoscopy

Gastroenterology & Endoscopy

Montserrat was developed as a Gastroenterology business over 20 years ago and still has Gastroenterology services across various locations. We currently perform Gastroenterology services at the following locations

Westside Private Hospital
Samford Road Day Hospital
North Lakes Day Hospital
Rosemont Endoscopy Centre 

You can be referred as an Open Access patient or to a doctor privately. For all appointments and enquiries please phone 07 3833 6701 or via email or to refer a patient  click here

Specialist – QLD Mon Tues Weds Thurs Fri Sat To Book Call
Dr Hadi Moattar SR/NL^ WSP 07 3833 6701
Dr Rebecca Ryan** WSP WSP 07 3833 6701
Dr Cliona Maguire SR SR SR SR 07 3833 6701
Dr John Wong WSP WSP WSP WSP 07 3833 6701
Dr Mark Norrie WSP WSP WSP WSP 07 3833 6701
Dr Terrence Tan WSP^ IP IP WSP 07 3833 6701
Dr Neal Martin WSP 07 3833 6701


Specialist – NSW Mon Tues Weds Thurs Fri Sat To Book Call
Dr Kendall Williams REC REC REC REC REC N/A 02 4226 5499
Dr Naaz Sidhu REC^ N/A 02 4226 5499
Dr Ivan Valiozis REC REC^ N/A 02 4226 5499
Dr Stephen Williams REC* N/A 02 4226 5499
Dr Peter Cusick** 02 4226 5499

*Dr Rebecca Ryan is on extended leave until January 2020.

WSP=Westside, SR=Samford Road, NL=North Lakes, IP=Ipswich, REC=Rosemont,

** = Extended leave, no bookings available
* = Monthly only
^ = Fortnightly only
Saturday’s are fortnightly and alternate doctors

How do I refer a patient?
Our Open Access Referral Pad – just fax (07) 3833 6740 or email (
1. Provide a referral to the patient and have them call us on (07) 3833 6701;
2. Provide an Electronic Referral via Medical Objects to Provider No: CM40000007H
3. Call our GP Hotline on (07) 3833 6788 for immediate assistance.

Our Specialists

All Montserrat Gastroenterologists provide both consulting and procedural services at a range of locations across South East Queensland and New South Wales. We also offer services in more rural locations including Emerald and Longreach. They are all accredited through a committee process and undergo a rigorous process of application to join Montserrat. Many of them provide services in the public system and at overnight facilities and they all offer Open Access services. As well as Endoscopy some of them are also able to offer Iron Infusion services and Capsule Endoscopy services.

Dr Stephen J Williams – Rosemont

Gastroenterologist, MBBS MD FRACP

Dr Williams current clinical practice includes all aspects of gastroenterology and therapeutic endoscopy with particular interest in the endoscopic management of large colonic polyps as well as biliary and pancreatic disease and the role of endoscopy in the diagnoses and therapy of these conditions.

Dr Williams has a long-term commitment to the training of gastroenterology at both the undergraduate and postgraduate level as well as training registrars and fellows in the art and science of endoscopy. Dr Williams has been working at Rosemont Endoscopy Centre for a number of years and also holds a VMO position at Westmead Hospital and the Southern Highlands Private Hospital.

Dr Kendall Williams

Gastroenterologist & Hepatologist, FRACP, BSc (med)/MBBS (UNSW), MPH (USyd)

Dr Kendall Williams completed her medical degree at the University of New South Wales in 2007 and a Masters of Public Health at the University of Sydney in 2015. Kendall has worked in Wollongong, Sydney and at the Gold Coast and joined the team at Rosemont Endoscopy Centre in 2017.

Kendall has a special interest in Hepatology, General Gastroenterology and Bowel Cancer Screening and offers both consulting and procedural services in Wollongong.

Dr Hadi Moattar

Gastroenterologist & Hepatologist MBBS FRACP

Dr Moattar completed his Medical Degree in 2004 and since then has worked in the UK, Queensland and Western Australia. Dr Moattar enjoys teaching students and junior doctors and is actively participating in quality assurance and audits. Dr Moattar has a special interest in Inflammatory Bowel Disease, Irritable Bowel Syndrome and Luminal Endoscopy and Polypectomy.

Dr Moattar offers regular consulting and procedural lists from our North Lakes Day Hospital.

Contact: 07 3833 6701 or

Dr Cliona Maguire

Gastroenterologist MB, BCh, MRCPI, FRACP

Dr Maguire graduated from University College Dublin in 1988 and commenced her training in Gastroenterology in Dublin in 1992. She spent a year doing clinical research in Inflammatory Bowel Disease at the Glasgow Royal Infirmary and completed her training at the Princess Alexandra and Mater Adult Hospitals in Brisbane. She became a Fellow of the Royal Australian College of Physicians in 1999.

Dr Maguire commenced with Montserrat in 2000 and offers consultations and procedure from our Samford Road Day Hospital.

Contact – 07 3833 6701 or

Dr Ammar Kheir

Gastroenterologist & Hepatologist - MBBS, FRACP, MRCP

Dr Ammar Kheir is a Senior Lecturer at the University of Queensland and a Consultant Gastroenterologist and Therapeutic Colonoscopist.

He has particular interest in high-quality colonoscopy, bowel cancer screening in adults and inflammatory bowel disease, management of colonic polyps, Barrett’s oesophagus and screening for early gastric cancer.

His research focuses on image-enhanced endoscopy, quality in colonoscopy and techniques of advanced endoscopic resection. He presented at international meetings, published in peer reviewed journals and authored endoscopy textbook chapters.

Dr Kheir graduated from the University of Medical Sciences & Technology in Sudan. He is a member of the Royal College of Physicians in the United Kingdom and a fellow of the Royal Australasian College of Physicians in Australia. He has undergone advanced endoscopic training in Australia and Japan.

Dr Kheir also works at QEII public hospital. He joined Montserrat in 2017, offering consultations and procedures from our Westside Private location.

Contact – 07 3833 6701 or

Dr Mark Norrie

Gastroenterologist BHB, M/B, ChB, FRACP, PhD

Dr Norrie graduated with MBChB in 1988 and has completed a PhD at the University of New South Wales in Molecular Biology, looking at gene methylation in colorectal biology carcinoma. He is also trained in the provision of small bowel capsule endoscopy.

Dr Norrie commenced at Montserrat in 2003 and provides consultation and procedure offerings at Westside Private Hospital as well as rural lists in Emerald and Longreach. Dr Norrie also continues to practice in the public health system.

His special interests include:
Small Bowel Capsule Endoscopy
Inflammatory Bowel Disease

Languages Spoken:

Contact – 07 3833 6701 or

Dr Rebecca Ryan

Gastroenterologist and Hepatologist BMBS (Hons), FRACP

Dr Ryan is a General Gastroenterologist and Hepatologist. She graduated from Flinders University of South Australia in 1998 and completed her advanced training in Gastroenterology in Adelaide and Brisbane. Her final years of training (including a clinical fellowship year) were at the Princess Alexandra Hospital and Greenslopes Private Hospital.

Dr Ryan has been working as a staff specialist at the Princess Alexandra Hospital, as well as in private practice since 2007. She joined Montserrat in 2012, and does procedure and consulting from both our Westside Private and Samford Road locations.

Her special interests:
Liver Disease, particularly Hepatits B & C
Ferinject Infusions
Functional Gut Disorders

Languages Spoken:



Contact – 07 3833 6701 or


Dr Terrance Tan

Gastroenterologist M.B., B.S., FRACP, PH.D

Dr Terrance Tan joined us back in 2014 and has become an integral member of the Montserrat Day Hospital team. Terrance has procedure and consultation lists from our Indooroopilly hospital as well as from rooms at Ipswich.

Terrance graduated from the University of NSW in Sydney with a Bachelor of Medicine and Bachelor of Surgery. He then went on to further training in Gastroenterology & Hepatology in Perth, where he explored his interest in patients with chronic hepatobiliary disorders and liver failure, as well as aiding with the teaching of younger physicians. He was awarded a fellowship from the FRACP in 2008 and then completed his doctorate (PhD) at the University of Queensland. Terrance has also been working as a staff specialist at the Princess Alexandra Hospital and is continuing research in his field.

Dr Tan’s special interests include:

Chronic hepatobiliary disorders

Liver disease and issues

Languages: English and Malaysian

Westside Private Hospital: Suite 311, 32 Morrow Street Taringa QLD 4068

Phone: (07) 3833 6701

Fax: (07) 3833 6740

Call us @ 07 3833 6701

For all appointments and enquiries, please call.

Request a callback

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