Dr Jason Dunn

Dr Jason Dunn



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9 specialists

21 years of experience
9 years as a specialist

Overall Rating

Overall Experience


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“Dr Dunn completely transformed my life! He is the best at what he does!“
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  • Irritable Bowel Syndrome (IBS)
  • Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease
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Languages spoken

  • English
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Registered with

  • General Medical Council: 4738468
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    Consultation fees

    New appointment: £250

    Follow-up appointment: £150

    Practices worked at

    HCA UK at The Shard

    St Thomas Street, London, United Kingdom, SE1 9BS
    1,760 reviews


    Dr Jason Dunn, Consultant Gastroenterologist is currently based in London working within the Guy’s and St Thomas’ Hospitals and privately within the London Bridge Hospital. He is highly specialised in therapeutic endoscopy, parenteral nutrition in oncology/palliative care, as well as the treatment of early Upper GI cancer, and Barrett's oesophagus. He has excellent experience in performing Endoscopic Mucosal Resection (EMR) and Radiofrequency Ablation (RFA) techniques, PEG tube insertion as well as HALO RFA for Barrett's oesophagus.

    During his studies he was awarded the CRUK clinical fellowship at UCL examining the use of optical diagnostics and minimally invasive therapies for the treatment of Barrett’s oesophagus. He was later awarded a PhD for this work and is still invited to present his findings at conferences around the world. His continues work in the field of Barrett’s oesophagus, and biomarkers to predict cancer progression has won his several awards. His research has resulted in numerous publications in high-impact medical journals and several book chapters. He continues to contribute back to medical education by holding the position of Honorary Senior Lecturer at Kings College London and Oslo University.

    Dr Dunn has had a very successful career in which he has established a regional Endo-therapy centre at St Thomas for South East region, written guidelines for the management of Barrett’s oesophagus, and been Clinical Lead for Endoscopy at Guy’s and St Thomas’ Hospitals. Additionally, he is also the Research Lead for the Oesophageal Section of the British Society of Gastroenterology and an advisor to the charity- Action against Heartburn. 


    • BRAVO Capsule
    • Endoscopy
    • Bowel Cancer Screening
    • Enteral Feeding
    • Oesophageal Stent Insertion
    • Parenteral Nutrition
    • Percutaneous Endoscopic Gastrostomy (PEG)
    • Sigmoidoscopy
    • Video Consultation
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    Special interests

    • Acid Reflux
    • Barrett's Oesophagus
    • Constipation
    • Gastric (Stomach) Ulcers
    • Heart Burn
    • Irritable Bowel Syndrome (IBS)
    • Achalasia
    • Bloating
    • Coeliac Disease
    • Colitis (Ulcerative Colitis)
    • Colorectal Cancer
    • Crohn’s Disease
    • Diarrhoea
    • Dyspepsia (Indigestion)
    • Food Intolerance
    • Functional Bowel Disease
    • Gallstones
    • Gastro-Oesophageal Reflux Disease (GORD) or Reflux
    • Gastro-oesophageal Reflux Disease (GORD)
    • Gastrointestinal Bleeding
    • Gastroparesis
    • Hiatus Hernia
    • Inflammatory Bowel Disease (IBD)
    • Iron Deficiency Anaemia
    • Jaundice
    • LPR Reflux
    • Oesophageal Cancer
    • Oesophageal Spasm
    • Oesophagitis
    • Pelvic Pain
    • Pyloric Stenosis
    • Rectal Bleeding
    • Swollen Stomach
    • Upper Gastrointestinal Conditions (Oesophagus & Stomach)
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    • MB BS 2000 University of London
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