Dr Watson Ng

Dr Watson Ng

Gastroenterologist and Hepatologist

Staff Specialist at Department of Gastroenterology and Liver

  Research Interests:
Intestinal ultrasound for assessment and management of inflammatory bowel disease and acute abdominal presentations

  Clinical Expertise:
Bowel Cancer, Inflammatory Bowel Disease, and Viral Hepatitis


Dr Watson Ng is a Staff Specialist at the Liverpool Hospital and a Conjoint Lecturer at University of NSW since 2007. Dr Ng obtained his medical degree at the University of Sydney in 1996 with Honours. He completed his Gastroenterology training in Royal Prince Alfred hospital and St George Hospital. He was awarded Fellowship of the Royal Australasian College of Physicians (FRACP) in 2004. He obtained his PhD research in 2008.

Dr Ng has extensive clinical experience in Inflammatory Bowel Disease (IBD), and contributes to clinical research as a principal investigator and co-investigator on numerous IBD clinical trials as part of the Australian New Zealand Inflammatory Bowel Disease Consortium. He has been an educator and speaker in national and international conferences.

In addition to his work in IBD, Dr Ng contributes to inpatient and outpatient gastroenterology and hepatology; and endoscopy at Liverpool Hospital with expertise in transabdominal intestinal ultrasound. Together with the gastroenterology department and microbiology department, faecal microbiota transplantation was set up to treat recurrent clostridium difficile infection.


MBBS (Hons)
University of Sydney 1996

Royal Australian College of Physicians 2004

Ph.D. in Medicine Dissertation The Appendix: the Immunopathogenesis in Colitis
University of New South Wales 2008


Staff Specialist, Gastroenterologist and Hepatologist (Sep 2007 – present)
Department of Gastroenterology and Liver, Liverpool Hospital

Conjoint Lecturer
University of New South Wales (Sep 2007 – present)

Academic Physician Member of SWSLHD Research and Teaching Committee
Liverpool Hospital (Apr 2015 – present)

Select Publications

  1. The need for better preventative strategies for inflammatory bowel disease patients at risk of herpes zoster virus. Bye W, Sparrow M, Connor S, Andrews J, Ellard K, Ng W, Hume G, Antoniades S, Walsh A. Intern Med J. 2017 Nov;47(11):1263-1269. doi: 10.1111/imj.13488. PMID: 28516725
  2. Response to: Comparison of infliximab drug measurement across three commercially available ELISA kits: author reply. Toong CM, Lee MW, Connor S, Ng W. Pathology. 2017 Apr;49(3):334-335. doi: 10.1016/j.pathol.2017.01.005. PMID: 28274667
  3. Multidonor intensive faecal microbiota transplantation for active ulcerative colitis: a randomised placebo-controlled trial. Paramsothy S, Kamm MA, Kaakoush NO, Walsh AJ, van den Bogaerde J, Samuel D, Leong RWL, Connor S, Ng W, Paramsothy R, Xuan W, Lin E, Mitchell HM, Borody TJ. Lancet. 2017 Mar 25;389(10075):1218-1228. doi: 10.1016/S0140-6736(17)30182-4. PMID: 28214091
  4. Comparison of infliximab drug measurement across three commercially available ELISA kits. Lee MW, Connor S, Ng W, Toong CM. Pathology. 2016 Oct;48(6):608-12. doi: 10.1016/j.pathol.2016.07.001. PMID: 27567230
  5. Gastroenterologist perceptions of faecal microbiota transplantation. Paramsothy S, Walsh AJ, Borody T, Samuel D, van den Bogaerde J, Leong RW, Connor S, Ng W, Mitchell HM, Kaakoush NO, Kamm MA. World J Gastroenterol. 2015 Oct 14;21(38):10907-14. doi: 10.3748/wjg.v21.i38.10907. PMID: 26478682

If you have any enquiries or would like to make an appointment, please email:

Gastroenterology and Liver
Clinic E (123), Level 1
Liverpool Hospital
Corner of Elizabeth and Goulburn Streets

  02 8738 4085
  FAX: 02 8738 3094
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