MBBS
25 years of experience
London, SE1 2PR
(+4 more)
53 connections in healthcare
Skill endorsed
by Dr Walter Melia, Dr. Ben Turner and 16 other professionals
25 years of experience
London, SE1 2PR
(+4 more)
53 connections in healthcare
Skill endorsed
by Dr Walter Melia, Dr. Ben Turner and 16 other professionals
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Dr Jason Dunn, Consultant Gastroenterologist, is based in London working within the Guy's and St Thomas' Hospitals and privately within the London Bridge Hospital and One Welbeck. He is highly specialised in Oesophageal diseases including GERD, LPR, EoE, Achalasia and Barrett's oesophagus. He is one of few specialists in the UK that practice therapeutic endoscopy in the oesophagus, including POEM for acahalsia, Esoflip/Endoflip, HALO Radiofrequency Ablation (RFA) (for Barrett's oesophagus and also inlet patch) and Endoscopic Mucosal Resection (EMR) throughout the GI tract for polyps and early cancer.
Other skills include general gastroenterology, nutrition (including PEG tube insertion), Irritable Bowel Syndrome, Colonic polyps, weight loss and SIBO.
Dr Dunn has an extensive research interest with over 200 research publications in high-impact medical journals and several book chapters, with 1850 citations. 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. His continued work in the field of Barrett's oesophagus, and biomarkers to predict cancer progression has won him several awards. He continues to contribute back to medical education by holding the position of Honorary Senior Lecturer at Kings College London and previously at Oslo University.
Dr Dunn has had a very successful career in which he has established a regional Endo-therapy centre at St Thomas for the 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 was the Research Lead for the Oesophageal Section of the British Society of Gastroenterology and remians on this committee. He is the medical advisor to the charity- Action against Heartburn.
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General Medical Council
No. 4738468
King's College London, University of London
Medicine
Graduated 2000
University College London, University of London
Barrett's oesophagus
Graduated 2010
New appointment
£290Follow-up appointment
£18027 Tooley Street, London, United Kingdom, SE1 2PR
St Thomas Street, London, United Kingdom, SE1 9BS
1 Welbeck St, Marylebone, London, London, United Kingdom, W1G 0AR
Suite 301 Emblem House, 27 Tooley Street, London, United Kingdom, SE1 2PR
St Thomas Hospital, Westminster Bridge Road, London, United Kingdom, SE1 7EH
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This summary was created by AI based on recent reviews
Dr Jason Dunn explains things clearly, and patients find him professional and friendly. He listens, guiding patients and making them feel understood and confident about their care. Procedures and treatments proceed smoothly and with little discomfort. His skill is noted for acid reflux, colonoscopy, and gastroscopy.
Would 100% recommend Dr Dunn, he is patient, friendly, explains things in laymen’s terms, he doesn’t rush you out the room as some other consultants do, he is a genuinely lovely man! We need more consultants like him!
Dr Jason Dunn is a world renowned expert in his area of expertise. He immediately puts you at ease and has a great bedside manner. He quickly grasps what you are trying to convey and puts in place a plan to treat your presenting problems. I wouldn’t hesitate to recommend this excellent Consultant.
Dr Dunn was courteous and clear in his explanations.
Dr Dunn was clear, concise, very knowledgable and skilled in his subject. He was pleasant and explained things very well. I would and have recommended him to others
I’m forever grateful to Dr Jason Dunn. He always takes time to listen thoroughly and find root cause of issues (rather than treating symptoms for a quick win). The treatments I’ve had so far have changed my life for the better. I feel at great care with Dr Dunn and will continue seeing him for as long as possible. I feel validated and understood, which is a rare find. He’s open to exploring various paths until things are figured out. Super thankful!
Dr Dunn is exceptional and I consider myself to be extremely fortunate to have been under his care.
Extremely grateful for the care I received under Dr Dunn who was at all times friendly, professional and patient. He took time to clearly explain my condition and treatment and answer any questions. He listened carefully to any concerns I had before my procedure which put me at ease. I would highly recommend Dr Dunn to others seeking treatment.
I recently underwent a colonoscopy with Mr Jason Dunn and I could not be more grateful for the exceptional care I received by him. The procedure itself went smoothly, and I experienced far less discomfort than I expected. I can’t recommend Mr Dunn highly enough.
Dr Jason Dunn is very warm and very professional. He is a very good listener and takes time to explain everything to you. I would recommend him very highly.
Jason is an outstanding Upper GI gastroenterologist and a leader in the field of interventional OG endoscopy, offering a range of interventions, including POEMS; I hugely value his opinions and interventions
01 Apr 2026
Dr Walter Melia
GastroenterologistJason gives the highest standard of care for his patients and is excellent doctor
07 Nov 2024
Dr. Ben Turner
NeurologistHighly skilled and experienced Gastroenterologist. Great bedside manner - highly recommended!
13 May 2024
Dr Vishal Saxena
GastroenterologistI refer patients to Jason for complex oeophageal conditions, and have been impressed by the quality of his care and by patient feedback.
24 Jan 2024
Dr John O'Donohue
GastroenterologistWhat are Dr Jason Dunn's reviews like?
Dr Jason Dunn's overall patient rating is 4.94 out of 5 stars on Doctify. This is based on 52 reviews.
What languages does Dr Jason Dunn speak?
Dr Jason Dunn speaks English
Where is Dr Jason Dunn located?
Dr Jason Dunn primarily practices at HCA Healthcare UK London Bridge Hospital, located at 27 Tooley Street, London, United Kingdom, SE1 2PR
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What are Dr Jason Dunn working hours?
Dr Jason Dunn is working Monday (16:00 - 19:00, 16:00 - 19:00, 16:00 - 19:00), Wednesday (13:30 - 20:00, 13:30 - 20:00, 13:30 - 20:00)
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Does Dr Jason Dunn accept new patients?
Dr Jason Dunn generally accepts new patients.
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