Dr Julian Ong Kian Peng



Place of Practice


Practice Address

38 Irrawaddy Road, #05-49
Mount Elizabeth Novena Specialist Centre
Singapore 329563

Tel: (65) 6694 0449




Consultant General & Colorectal Surgeon
Sub-specialty interest: Endoscopy, Minimally Invasive Surgery, Colorectal Cancer



MBBS (S’pore), M.MED (Surgery),
FRCSEd (General Surgery), FAMS (Surgery)

About Dr Ong

Dr Julian Ong is a Consultant General and Colorectal Surgeon at Julian Ong Endoscopy & Surgery (Pte Ltd). His areas of interest are in endoscopy and in minimally invasive surgery, particularly in laparoscopic surgery for colorectal cancer. Dr Ong also focuses on the management of all other colorectal conditions and surgery for perianal conditions. He has performed many colon and rectal surgeries in both laparoscopic and open techniques. He is an accredited console surgeon in robotic-assisted laparoscopic surgery. In addition, Dr Ong also has an interest in the field of trauma surgery, being an accredited instructor in the Advanced Trauma Life Support (ATLS) training program.

After graduating with a medical degree from the National University of Singapore, Dr Ong fulfilled his years of residency and proceeded to complete his fellowships in the Royal College of Surgeons of Edinburgh. He earned his Master's Degree of Medicine (Surgery) from the National University of Singapore, Faculty of Medicine. He is also a Fellow of the Academy of Medicine, Singapore, Chapter of General Surgeons.

Dr Julian Ong was Associate Consultant at the Department of Colorectal Surgery, Singapore General Hospital (2009 – 2011) one of the most progressive colorectal surgical units in the region. He was also Consultant Surgeon at the Pacific Surgical and Colorectal Centre (2011 – 2013).

Aside from his passion for medicine and surgery, Dr Ong is an all-rounded individual with keen interests in motorsports and sports. He has been actively involved in the Singapore SingTel Formula One Grand Prix since its induction in Singapore, and is presently the Deputy Chief Medical Officer of the event.

Specialized Services


    • Oesophago-gastro-duodenoscopy (upper gastrointestinal endoscopy)
    • Colonoscopy (lower gastrointestinal endoscopy)    

Perianal Surgery:

Anal abscesses, anal fistulae, haemorroids (piles) and rectal prolapse are common perianal conditions.

    • Injection
    • Rubber Band Ligation
    • Conventional Haemorrhoidectomy
    • Stapled Haemorrhoidectomy
    • Transanal Haemorrhoidal Dearterialization (THD)

Colorectal Surgery:

Both open technique surgery and minimally invasive surgery are available. For advanced minimally invasive surgery, our team offers single port and robotic assisted surgery, on top of conventional ("key-hole") laparoscopic surgery.

    • Colonic polyps
    • Familial Adenomatous Polyposis (FAP)
    • Colorectal Cancer
    • Diverticular Disease
    • Inflammatory Bowel Disease
    • Irritable Bowel Syndrome (IBS)