Dr Martin Grehan

Dr Martin Grehan

MBBS, FRACP, PhD

Dr Martin Grehan is an experienced gastroenterologist who has been providing specialist care to the Penrith community since 2004.

He is committed to delivering high-quality, patient-centred care, with a focus on improving symptoms, supporting long-term health, and enhancing quality of life.

Dr Grehan provides comprehensive gastroenterology services, including diagnostic and therapeutic endoscopy, and the assessment and management of a wide range of gastrointestinal conditions such as reflux, dysphagia, abdominal pain, altered bowel habits, gastrointestinal bleeding, liver disorders, iron deficiency, and unexplained weight loss.

His clinical interests include irritable bowel syndrome, coeliac disease, inflammatory bowel disease (Crohn’s disease and ulcerative colitis), and bowel cancer prevention.

Dr Grehan is accredited in gastroscopy and colonoscopy by the Conjoint Committee for Recognition of Training in Gastrointestinal Endoscopy.