Colorectal & General Surgeon In Singapore

Dr Calvin Ong

mbbs | M.Med (Surgery) | MRCS | FRCS

Fellowship-trained surgeon providing comprehensive management & treatment for colorectal, anal, and abdominal conditions, including tumors, inflammatory diseases, hernias, and gastrointestinal disorders.
Special interests in minimally invasive robotic colorectal surgery, inflammatory bowel disease, pelvic floor disorders and hernia repair.

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Modern & Evidence-based Care

Dr. Calvin Ong’s dedication to high-quality care is complemented by his modern, evidence-based approach, ensuring that every patient receives specialized treatment focused on long-term recovery and wellness

Accredited Surgeon
With 15+ Years Of Experience

Results-Oriented
Approach

Focused Aftercare For
All

Honest & Transparent
Pricing

Common Conditions & Procedures

colon polyps / tumours

rectal polyps / tumours

Hernia Repair

faecal incontinence

Constipation

Colonoscopy

Gastroscopy

Anal Fissures

Anal Fistula

Haemorrhoids/Piles

Inflammatory Bowel Disease (IBD)

Cholecystectomy

Appendicectomy

Perianal Infections

Conditions & Procedures We Specialise In

Endoscopic Procedures

Hernia Repair

Pelvic Floor Disorders

Inflammatory Bowel Disease (IBD)

Colorectal Cancer

Robotic Colorectal Surgery

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Get an Accurate Diagnosis & Proper Treatment for Your Condition

Consult Dr Calvin Ong for an accurate diagnosis and a personalised treatment plan.

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Dr Calvin Ong Jianming

Senior Consultant, Colorectal & General Surgeon

MBBS (S’pore)|

M.Med (Surgery)|

MRCS (Ireland)|

FRCS (Edin)|

王健名医生

Dr. Calvin Ong is a Senior Consultant with more than 15 years of surgical experience. He specializes in colorectal and general surgery, performing minimally invasive as well as advanced robotic surgeries for benign and malignant colorectal conditions, including inflammatory bowel disease, pelvic floor disorders, colorectal cancer, and hernia repair. He is dedicated to providing high-quality, personalised care for his patients.

Dr. Ong graduated with a Bachelor’s degree in medicine and surgery from the National University of Singapore in 2008 and completed his Masters of Medicine (Surgery) at the same institute. He finished his advanced specialist training in 2016 and became a fellow of the Royal College of Surgeons of Edinburgh.

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