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Consultant Colorectal & Hernia Surgeon

Mr Oliver
Warren

BSc (Hons) · MBBS (Hons) · MD (Res) · FRCS (Gen.Surg.)

Clinical Director of Surgery at Chelsea and Westminster Hospital, and a leading robotic and minimally invasive colorectal and hernia surgeon. Trained at Imperial College London — top of his class — with international fellowships at St. Mark's, Sydney and the Cleveland Clinic.

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Mr Oliver Warren
Current Post
Clinical Director of Surgery
Chelsea & Westminster Hospital NHS FT
Academic Appointment
Honorary Senior Lecturer
Department of Surgery & Cancer, Imperial College London
Award
ASGBI Gold Medal — FRCS Fellowship 2012
Outstanding Performance
Leadership Fellowship
Health Foundation Leadership Fellow
NHS London Strategic Health Authority
BSc (Hons) Imperial College London, 1998
MBBS (Hons) Imperial College London, 2001
MD (Res) Imperial College London, 2009
FRCS (Gen.Surg.) Royal College of Surgeons, 2012
CCT General Surgery, 2014
GMC Reg. No. 6028457
About

Precision Surgery.
Genuine Expertise.

I am a Consultant Colorectal and Hernia Surgeon with a specialist focus on robotic and minimally invasive surgery, complex abdominal wall reconstruction, and benign proctology. I see patients at One Welbeck Digestive Health in Marylebone, The Lister Hospital, and Chelsea and Westminster Hospital.

"He qualified from Imperial College London in 2001, coming top of his class in both medicine and surgery — awarded the Imperial College Gold Medal and proxime accessit to the University of London Gold Medal."

I am Clinical Director of Surgery at Chelsea and Westminster Hospital, where I also chair the Abdominal Wall Reconstruction MDT and serve as a core member of the Colorectal Cancer MDT and Endometriosis MDT. My academic role as Honorary Senior Lecturer in the Department of Surgery and Cancer at Imperial College London keeps my practice closely connected to the latest evidence and innovation.

Prior to becoming a consultant, I undertook fellowships at three world-famous tertiary colorectal centres: St. Mark's Hospital (London), the Royal Prince Alfred Hospital (Sydney), and the Cleveland Clinic (Ohio, USA), where I was the Association of Coloproctology's visiting fellow in 2013.

Outside of clinical practice, I have a strong interest in healthcare leadership, patient safety, and surgical education. In 2015 I published Going into Hospital? A Guide for Patients, Carers and Families, aimed at empowering patients throughout their care pathway.

130+
Peer-reviewed publications & book chapters
2015
Appointed Consultant at Chelsea & Westminster
3
International fellowship centres
ASGBI
Gold Medal — Outstanding FRCS performance
Mr Oliver Warren — Consultant Colorectal & Hernia Surgeon ASGBI Gold Medal
Mr Oliver Warren Consultant Colorectal & Hernia Surgeon
Clinical Expertise

Areas of Specialist Practice

A fully trained robotic surgeon with a comprehensive NHS and private practice spanning colorectal oncology, complex hernia surgery, and minimally invasive proctology.

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Robotic Surgery

Fully trained robotic surgeon performing robotic-assisted colorectal resections, hernia repair and complex abdominal wall reconstruction using the latest surgical platforms.

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Hernia & Abdominal Wall

Complex and recurrent groin, incisional, umbilical and parastomal hernias. Chair of the Abdominal Wall Reconstruction MDT at Chelsea and Westminster Hospital.

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Colorectal Cancer

Resectional surgery for rectal and colonic cancer. Core MDT member with robotic and open expertise, including anterior resection, right hemicolectomy and APR.

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Benign Proctology

Haemorrhoids (banding, haemorrhoidectomy, Rafaelo, laser), anal fissure, fistula-in-ano, pilonidal disease and anal intra-epithelial neoplasia.

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Endoscopy

Diagnostic and therapeutic colonoscopy, flexible sigmoidoscopy, endoscopic mucosal resection (EMR), and bowel cancer screening.

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Inflammatory Bowel Disease

Surgical management of Crohn's disease and ulcerative colitis, including stoma formation, reversal of Hartmann's procedure and ileal pouch surgery.

Training & Appointments

A Career Built on
World-Class Foundations

From Imperial College gold medallist to international fellowship alumnus of three global centres of colorectal excellence.

1998

BSc (Hons) — Imperial College London

First Class Honours degree in a biomedical science discipline

2001

MBBS (Hons) — Imperial College London

Top of class in both medicine and surgery. Awarded Imperial College Gold Medal; proxime accessit to University of London Gold Medal

2006–08

Health Foundation Leadership Fellow

NHS London Strategic Health Authority — seconded to Lord Darzi's ministerial office, Department of Health

2009

MD (Res) — Imperial College London

Doctorate by research; over 20 publications in surgical outcomes, leadership and patient safety

2012

FRCS (Gen.Surg.) — Royal College of Surgeons

Awarded the ASGBI Gold Medal for outstanding performance

2014

CCT — General Surgery

Certificate of Completion of Specialty Training in General Surgery

2015

Appointed Consultant — Chelsea & Westminster Hospital

Also appointed Honorary Senior Lecturer, Department of Surgery & Cancer, Imperial College London

International Fellowships

London, UK · 2013
St. Mark's Hospital
Resident Surgical Officer — one of the world's leading colorectal centres, with a subspecialty focus on complex proctology and inflammatory bowel disease
Sydney, Australia · 2014
Royal Prince Alfred Hospital
Colorectal Surgery Fellowship — a major tertiary referral centre renowned for its robotic and minimally invasive colorectal programme
Ohio, USA · 2013
Cleveland Clinic
Association of Coloproctology Visiting Fellow — one of the foremost coloproctology and digestive disease programmes in the world

Leadership & Advisory Roles

2007–2014
Prepare to Lead
Founder and Clinical Lead — a prize-winning leadership development and mentoring programme commissioned by NHS London
2008
Department of Health
Clinical Adviser to the Under-Secretary of State for Health, seconded from the Health Foundation Fellowship
Clinic Locations

Where to See Me

Private outpatient clinics at three leading London hospitals, with both face-to-face and video consultation options available.

One Welbeck
Digestive Health
Private

1 Welbeck Street, Marylebone
London W1G 0AR

  • Monday08:00–17:30
  • Wednesday13:00–18:00
  • Phone020 7157 9985
The Lister Hospital
HCA Healthcare UK
Private

Chelsea Bridge Road
London SW1W 8RH

  • Thursday17:30–20:00
  • Friday08:30–19:00
  • Phone020 7157 9985
Chelsea & Westminster
Hospital
NHS & Private

369 Fulham Road
London SW10 9NH

  • NHS DeptColorectal Surgery
  • Privatechelwestprivatecare.co.uk
  • Phone020 3315 8484
Medical Secretary
Gabriella White
c/o One Welbeck Digestive Health, 7th Floor, 1 Welbeck Street, London W1G 0AR
T: 020 7157 9985 · M: 07557 877310 · E: pa@chelseacolorectal.co.uk
Contact Secretary
Research & Academic

Publications, Memberships
& Research Interests

An active researcher and prolific author across colorectal surgery, hernia, patient safety and healthcare leadership.

130+
Peer-reviewed publications & book chapters

Oliver's publications span colorectal and hernia surgery, medical leadership, patient safety and surgical education. His first book, Going into Hospital? A Guide for Patients, Carers and Families (2015), has been widely adopted as a practical resource for patients navigating planned hospital admissions.

Research Interests

Abdominal Wall Reconstruction Robotic Surgery Early Rectal Cancer Advanced Rectal Cancer Anal Cancer Anal Intra-epithelial Neoplasia Hernia Surgical Education Patient Safety Medical Leadership

Online Profiles

PHIN Outcomes ResearchGate iWantGreatCare
Professional Memberships
  • Association of Coloproctology of Great Britain and Ireland (ACPGBI)
  • European Society of Coloproctology (ESCP)
  • British Hernia Society (BHS)
  • Association of Surgeons of Great Britain and Ireland (ASGBI)
Awards & Recognition
ASGBI Gold Medal · 2012

Awarded by the Association of Surgeons of Great Britain and Ireland for outstanding performance in the FRCS (Gen.Surg.) examinations

Imperial College Gold Medal · 2001

Top of class in final MBBS examinations; proxime accessit to the University of London Gold Medal

Health Foundation Leadership Fellow

Competitive national fellowship for emerging clinical leaders; seconded to Lord Darzi's ministerial team at the Department of Health

ACPGBI Visiting Fellow · 2013

Association of Coloproctology of Great Britain and Ireland sponsored visiting fellowship at the Cleveland Clinic, Ohio

Book an Appointment

Arrange Your
Consultation

New patient appointments are available at One Welbeck, The Lister and Chelsea and Westminster. Most major insurers are accepted. Self-pay rates available on request.

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Call the Secretary

020 7157 9985 · Mon–Fri, office hours

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Email the Secretary

pa@chelseacolorectal.co.uk

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Book via Welbeck

Online booking at One Welbeck Digestive Health

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View Outcomes Data

PHIN — independent patient outcomes & quality data

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Private Consultation Fees

Initial Consultation From £335
Follow-up Consultation From £195
Video / Telephone Available
Insurers Accepted
Bupa AXA Health Aviva Vitality WPA Self-pay

Bupa Platinum Consultant · Fee Assured · Open Referral Network. Verified GMC Reg. No. 6028457.