Mr Simon Dexter

Qualifications

BM, DM, FRCS (Gen), FCSHK

GMC number: 3248490

Practising since: 1987

Specialties

General Surgery

Consultation times

  • Weekly Friday daytime
  • Overview
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0113 3227251

About

Consultant Upper Gastrointestinal & Bariatric Surgeon
Laparoscopic Surgery • Weight Loss Surgery • Oesophago-Gastric Surgery • Advanced Endoscopy

Profile Overview

Mr Simon Dexter is a highly experienced Consultant Upper Gastrointestinal (GI) and Bariatric Surgeon who places patient safety and quality of life at the centre of his practice. With over three decades of experience in laparoscopic and minimally invasive surgery, he is recognised nationally for his expertise in weight loss surgery, oesophago-gastric procedures and advanced keyhole techniques.

Mr Dexter has played a significant role in shaping the development of laparoscopic surgery in the UK. He was the UK’s first laparoscopic surgery research fellow and has maintained a leading position in upper GI and bariatric surgery ever since.

Clinical Interests

  • Weight loss (bariatric) surgery
  • Laparoscopic gastric bypass
  • Sleeve gastrectomy
  • Gastric banding
  • Duodenal switch procedures
  • Gastric balloon
  • Oesophago-gastric surgery
  • Gastro‑oesophageal reflux disease (GORD)
  • Upper GI oncology
  • Hernia surgery
  • Therapeutic and diagnostic endoscopy

Expertise in Bariatric & Minimally Invasive Surgery

Mr Dexter is one of the UK’s most experienced bariatric surgeons, having performed over 1,000 laparoscopic weight loss procedures, including:

  • Gastric bypass
  • Sleeve gastrectomy
  • Gastric banding
  • Duodenal switch

His complication rates for bariatric surgery are among the lowest in the UK, reflecting meticulous surgical planning, attention to detail and a strong commitment to patient safety.

In addition to bariatric procedures, he regularly undertakes:

  • Laparoscopic hernia repair
  • Upper GI endoscopy
  • Colonoscopy and therapeutic endoscopic procedures

Training & International Experience

Mr Dexter has trained and worked in some of the world’s leading centres for upper gastrointestinal surgery. His advanced surgical training includes:

  • Leeds General Infirmary, UK
  • Chinese University of Hong Kong
  • Tufts Medical Center, Boston, USA
  • National Cancer Centre Hospital, Tokyo, Japan

This extensive international experience has shaped his expertise in complex laparoscopic, oesophago-gastric and bariatric surgery.

Teaching, Leadership & Professional Roles

Mr Dexter is committed to advancing surgical education. He has:

  • Taught and mentored consultant surgeons across the UK
  • Served on the British Obesity & Metabolic Surgery Society (BOMSS) training committee
  • Contributed to the development of national bariatric training programmes

His leadership in training reflects his dedication to improving standards and promoting best practice nationwide.

Treatments & Procedures Available at Nuffield Health Leeds Hospital

Patients interested in weight loss surgery can book a complimentary 10‑minute 1‑to‑1 consultation with Mr Dexter via the hospital enquiry team on 0113 322 7251.

In the News

Mr Dexter has been featured in The Daily Mail’s Good Doctors Guide, highlighting his reputation and contribution to specialist upper GI and bariatric surgery.

Special interests

  • Upper gastrointestinal oncology
  • Obesity (bariatric) surgery
  • Gastro‑oesophageal reflux disease
  • Advanced laparoscopic surgery
  • Upper GI endoscopy

Other interests


Personal interests

Away from the hospital, Mr Dexter enjoys rock concerts, “dad dancing,” watching rugby, walking his dogs, relaxing at home with family, and appreciating fine wine and home‑cooked meals.

Treatments and tests offered by Mr Simon Dexter at Nuffield Health

  • Gastric band (lap banding)
  • Gastroscopy (or gastrointestinal (GI) endoscopy)
  • Haemorrhoidectomy
  • Gastric balloon (BiB)
  • Gastric Electrical Stimulation for Gastroparesis
  • Therapeutic Endoscopy
  • Upper gastrointestinal endoscopy
  • Weight loss surgery
  • Sleeve gastrectomy
  • Hernia repair
  • Gastric bypass
  • Cholecystectomy (Gallbladder removal)

Locations Mr Simon Dexter works with

  •  

    2 Leighton Street, Leeds, LS1 3EB

    0113 3227251
    Overall rating
    Good
     
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Related experience

Research

Mr Dexter promotes innovative practice and has pioneered many complex laparoscopic procedures such as:

  • 1996 First Laparoscopic Liver Resection in Leeds
  • 2000 First Laparoscopic gastric bypass in the UK together with Professor Michael McMahon
  • 2002 First Laparoscopic Radical Transhiatal Oesophagectomy in UK
  • 2003 First Laparoscopic Duodenal Switch / Biliopancreatic diversion in UK together with Professor Michael McMahon
  • 2004 First Laparoscopic Radical (D2) Gastrectomy in UK
  • 2007 First Totally Minimally Invasive Oesophagectomy in Leeds
  • 2008 World’s First Laparoscopic Merendino Operation (Gastro-oesophageal junction resection with jejunal interposition)
  • 2009 First Laparoscopic Gastric Electrical Stimulator (Enterra) in Leeds
  • Mr Simon Dexter was appointed as the country’s first “Minimally Invasive Surgery” research fellow. Awarded DM in 2000
  • Performed UK’s first laparoscopic gastric bypass, and laparoscopic duodenal switch for obesity together with Professor Michael McMahon.

Memberships

  • British Obesity Surgery Society (Council Member)
  • Leeds Institute for Minimally Invasive Therapy
  • Association of Upper GI Surgeons (Council Member)
  • British Obesity and Metabolic Surgery Society (Executive Treasurer and Council Member)
  • Association of Laparoscopic Surgeons of GB & Ireland (President)
  • European Association of Endoscopic Surgery
  • Royal College of Surgeons of England
  • College of Surgeons of Hong Kong
  • British Medical Association

Other posts held

  • Consultant Surgeon, Upper Gastrointestinal and Minimally Invasive Surgery, Leeds Institute for Minimally Invasive Therapy

Insurers Mr Simon Dexter works with

Mr Simon Dexter works with the following private medical insurance providers:

  • Aviva Health
  • AXA Health
  • Bupa
  • Cigna
  • Simplyhealth
  • Vitality Health (Pru Health)

Declaration

Mr Simon Dexter does not hold a share or financial interest in this hospital, another Nuffield Health hospital or the company.

Mr Simon Dexter does not have a share or financial interest in equipment used at this hospital or another Nuffield Health hospital.

Mr Simon Dexter does not hold any paid advisory role(s) at this hospital or on behalf of Nuffield Health.