Gastroenterologist in SydneyComprehensive specialist care for your gut health
A/Prof Viraj Kariyawasam · MBBS (Hons) · FRACP · MRCP (UK) · PhD
A/Prof Kariyawasam is a consultant gastroenterologist and hepatologist practising in Norwest, Rouse Hill, Pennant Hills and Macquarie Park. His work covers bowel cancer screening and prevention, Crohn's disease and ulcerative colitis, irritable bowel syndrome and disorders of gut-brain interaction, coeliac disease, reflux and liver disease. He provides personalised, compassionate and holistic care, the way he would want a member of his family cared for.
Start here
Information for patients, doctors and media
For patients
The conditions treated, what happens at a first appointment and detailed guides to colonoscopy, bowel cancer screening and bowel cancer in younger adults.
See all servicesFor referring doctors
Referral pathways, urgent access for suspected IBD, rectal bleeding and positive iFOBT, plus secure messaging details.
Referral informationFor media & industry
Commentary on inflammatory bowel disease, bowel cancer, endoscopy access and medicines policy in Australia.
Advocacy & mediaClinical focus
Conditions treated
All aspects of general gastroenterology and liver disease with a special interest in inflammatory bowel disease and the prevention of gastrointestinal cancer.
Detailed patient information
Conditions and procedures
A comprehensive guide to what a procedure involves, what a result means and what happens next. Written and explained by A/Prof Viraj Kariyawasam with links for further reading.
Inflammatory bowel disease
Diagnosis and treatment of Crohn's disease and ulcerative colitis, including biologic and small-molecule therapy, fibrostenosing and fistulising disease, perianal Crohn's, pregnancy in IBD and second opinions on treatment-refractory disease.
Cancer prevention
Bowel cancer screening and surveillance, positive FOBT pathways, polyp removal, Barrett's oesophagus and early detection of bowel, oesophageal and stomach cancer.
IBS and functional gut disorders
Irritable bowel syndrome, disorders of gut-brain interaction, bloating, chronic constipation and chronic diarrhoea. Conditions that are common, often dismissed and worth investigating properly before being labelled.
Reflux, swallowing and upper gut
Reflux and Barrett's oesophagus, difficulty swallowing, eosinophilic oesophagitis, hiatus hernia, gastritis, H. pylori and peptic ulcer disease.
Coeliac, liver and pancreas
Coeliac disease, iron deficiency and malabsorption, small intestinal bacterial overgrowth, fatty liver disease, abnormal liver function tests, gallstones and pancreatitis.
Endoscopy
Colonoscopy, gastroscopy, flexible sigmoidoscopy and capsule endoscopy, with polypectomy, endoscopic mucosal resection, stricture dilatation and control of bleeding.
Where to find him
Consulting across Sydney
Four consulting locations from the Hills District to the Upper North Shore with procedures at accredited day surgery and private hospital facilities.
Norwest
Complete Health Australia
Tower A, Suite 307, 11-13 Solent Circuit
Rouse Hill
Complete Health Australia
G11, 2-4 Aberdour Avenue
Pennant Hills
Pennant Hills Gastroenterology
10 Ramsay Road
Macquarie Park
Macquarie GI
Suite 404, 2 Technology Place
Beyond the clinic
Research, teaching and policy
A/Prof Kariyawasam spent his first thirteen years as a consultant at Blacktown Hospital, where he built the inflammatory bowel disease service from nothing to one caring for more than 1,000 patients. He now holds appointments with the IBD Service at Concord Repatriation General Hospital and at Macquarie University Hospital, and is a Clinical Associate Professor at Macquarie University Medical School. There is more on the about page.
He is a founding director of IBD Sydney, which has delivered continuing professional development to Australian clinicians every year since 2016. He is clinical co-chair of the Gastroenterology Network at the Agency for Clinical Innovation, leading work on how gastroenterology care is planned and delivered across NSW Health. He also sits on the AMA (NSW) Council.
Make an appointment
Appointments are booked through the rooms directly. Have your GP referral ready when you call or ask your GP to send it ahead. Urgent inflammatory bowel disease, rectal bleeding and positive bowel screening referrals are prioritised.
Norwest & Rouse Hill (02) 8530 1800 Pennant Hills (02) 9875 2311 Macquarie Park (02) 9812 3880