Credentials MBBS, MRCS (Edin, UK), MRCS (Glasg, UK), FRCSEd UK: General Surgery (Sub-speciality: Colorectal Surgery)
Language English, Tamil, Hindi, Malayalam

Dr. Ronnie Mathew is a Senior Consultant Surgeon with around 27 years of Surgical experience. He has dual Specialist Registration in General Surgery: from both United Kingdom (General Medical Council) and Singapore (Singapore Medical Council). Dr. Ronnie’s Sub-Speciality interest is in Colorectal Surgery. He is a keen proponent of Minimally Invasive Surgery, especially Robotic Surgery. Ronnie was amongst the first group of six colorectal surgeons in Europe to be formally accredited to undertake Robotic Colorectal Surgery by the European Association of Robotic Colorectal Surgery.

He undertook all his Surgical training in United Kingdom, including extensive training over 11 years. The last seven years of this was in a comprehensive Higher Surgical Specialist training in General Surgery and its various Sub-Specialities. He also spent additional three years primarily for clinical research in surgery.

Following his completion of training and attainment of Specialist Registration in UK in 2011, he undertook various International Fellowships over 2012-2013 (including in Singapore [SGH], South Korea, and Switzerland). In 2013, he then returned to take up a Consultant position in one of UK’s busiest Tertiary Hospitals (it usually comes within the top three in UK for Colorectal Cancer workload [as per NBOCA data] as well high Emergency General Surgery volume). Here he was instrumental, as a co-lead, in setting up the Robotic Surgery programme. He was also part of sub- specialist group in the regional county area for treating Pelvic Floor Disorders (for Leicestershire) and Trans-Anal Minimally Invasive Surgery for early rectal cancer (East Midlands).

Following an invitation from the Department of Colorectal Surgery at SGH, Dr. Ronnie came back to Singapore in March 2016 to join the Department as a Consultant. He became a Senior Consultant few years later. He held the post of Director of Research at Colorectal Surgery Department along with various SGH board memberships including in Robotic Surgery. After spending eight years at the Dept. of Colorectal Surgery at SGH, Ronnie left to start his private practice in April 2024.

In addition to his decades of clinical experience and specialist expertise, Ronnie has won multiple international awards/recognitions including ‘International Trainer of the Year’ (awarded by Association of Coloproctology Great Britain and Ireland. Till to-date, Ronnie is the sole recipient of this award outside of UK). He also won the prestigious ‘British Travelling Fellow to USA’ award in 2015 (awarded to only one person each year). As part of this award, he chose to undertake Travelling Fellowships to Cleveland Clinic Hospital and University of California Irvine Hospital. Nationally, he has won multiple awards, including the award ‘Top 10 most Impactful Healthcare projects’ at the Singapore National Healthcare IT summit in 2018. This was for the project led by Dr. Ronnie: ‘Artificial Intelligence in Colorectal Cancer: Prediction for Recurrence, Optimal Surveillance, and Treatment’. He has over forty publications including in Nature, Lancet, Annals of Surgery etc.

Ronnie continues to maintain his passion for clinical excellence in providing high quality healthcare and keeping patients interest at the heart of all he does.

Associated Treatments

In General Surgery:

  • Appendix
  • Gall Bladder
  • Hernias Small Bowel tumours and diseases
  • Adhesiolysis, Intestinal Obstruction
Special Treatments

In Colorectal Surgery:

  • Robotic Surgery and Laparoscopic Surgery
  • Colorectal Surgery:
    • Colorectal Cancer : including advanced and recurrent cancers
    • Diverticular Disease Management: including Diverticulitis, Bleed, Stricture, Fistula related to Diverticular Disease
    • Complex Ano-Proctology: Haemorrhoids, Fissure, Fistula, Abscess
    • Inflammatory Bowel Disease : Ulcerative Colitis, Crohn’s disease
    • Trans-Anal: Endoscopic Micro Surgery (TEMS/TEO) / Minimally Invasive Surgery  (TAMIS)
  • Colonoscopy for:
    • Colorectal Cancer Screening & Surveillance
    • Diagnostic and Therapeutic colonoscopy (including for advanced Polypectomy, Diverticular bleed, Colonic strictures, Radiation proctitis).
  • Functional Bowel Disorders: Irritable Bowel Syndrome, Incontinence, Slow Transit Constipation
  • Pelvic Floor Disorders: Constipation/Incontinence, Rectal Prolapse, Pelvic Floor Dysfunction
  • Healthy Gut

Multiple publications and presentations:

  • Over 40 publications including in Nature, Lancet and Annals of Surgery
  • Over 50 national/international presentations, including invited presentations at international meetings.

For further details:


Select Accolades and Awards for Dr. Ronnie Mathew:

International Awards:

  • International Trainer of the Year 2021. Awarded on 7 July 2021, by the Association of Coloproctology Great Britain & Ireland along with DUKE’s Club. This prestigious award is given only to one international trainer in the world each year, in recognition of the delivery of exceptional training and creating a learning environment in which to provide outstanding patient care.
  • ‘The 2015 British Travelling Fellow to the USA’ awarded by the Association of Coloproctology Great Britain & Ireland (ACPGBI), Royal Society of Medicine (RSM) UK, and in conjunction with the American Society of Colon and Rectal Surgeons (ASCRS). Awarded February 2015. This annual award is only given to one person each year from Great Britain and Ireland.

National Award:

  •  Singapore National Health-Tech Challenge 2018: Award for the ‘Top 10 Most Impactful Projects’. Awarded at National Health IT Summit, Singapore, 17 July 2018.
    Project: ‘Artificial Intelligence in Colorectal Cancer: Prediction for Recurrence, Optimal Surveillance, and Treatment’.
    The award included promise of funding for a project underwritten by Singapore’s National Integrated Health Information Systems (IHiS).
    Principal Investigator: Dr. Ronnie Mathew

Professional Society Memberships:

  • American Society of Colon and Rectal Surgeons
  • Robotic Surgery Society of Singapore
  • Society of Colorectal Surgeons, Singapore
  • European Association of Robotic Colorectal Surgeons
  • Association of Coloproctology Great Britain Ireland
  • European Society of Coloproctology
  • European Society of Surgical Oncology
Awards and Honours

Multiple Awards received for Clinical Research, MedTech/Surgical Innovation, Service and Academic

For further details:

Fellowships and Accreditations


  • Singapore Medical Council: Specialist Accreditation, 2016
  • General Medical Council, UK: Specialist Accreditation, 2011
  • General Medical Council, UK: Full Registration, 2001

International Robotic Colorectal Surgery Accreditation:

  • European Association of Robotic Colorectal Surgery (EARCS), 2015

Completion of Higher Surgical Specialist Training, United Kingdom: 2011

International Fellowships following completion of Higher Surgical Training in UK:

  • 2015: Travelling Fellowship to Colorectal Surgical Units in UC Irvine California and Cleveland Clinic Florida, USA (as part of the ‘2015 British Travelling Fellowship to the USA award from ACPGBI, RSM UK and ASCRS)
  • 2013: Brief Visiting Fellowship, St Gallen Hospital, Switzerland: in Pelvic Floor Surgery
  • 2013: For six months: Korea University Anam Hospital, Seoul: in Robotic Colorectal Surgery
  • 2012: For one year: Singapore General Hospital, in Pan-Colorectal conditions including Minimally Invasive Surgery
  • 2011: For six months: Northern General Hospital, Sheffield, UK: mainly in Laparoscopic Colorectal surgery