He has extensive experience in the diagnosis and management of benign and malignant colorectal disease. His special interests in colorectal surgery include complex redo laparoscopic surgery and strategies to enable laparoscopic techniques in the obese. He has the largest Australian experience with the technique of Natural Orifice Specimen Extraction (NOSE) where colectomy can be performed with only four 5mm incisions. He performs routine and complex therapeutic colonoscopy. He is committed to innovations in surgery that minimise morbidity and perioperative suffering. He has been a Visiting Medical Officer (VMO) at the Orange Health Service and Dudley Private Hospital for 14 years and is also a VMO colorectal surgeon at the Liverpool Hospital.