
About Jason Dunn
Dr Jason Dunn is a consultant Gastroenterologist at Welbeck and St Thomas’ Hospitals NHS Foundation Trust. He studied at GKT medical school, graduating in 2000, and was awarded MRCP (London) in 2005. He was appointed as a consultant in 2012.
Dr Dunn is proficient in Endoscopic Therapy including Endoscopic Mucosal Resection (EMR), and Radiofrequency Ablation (RFA) techniques. Additionally, Dr Dunn has written guidelines for the management of Barrett’s oesophagus for the South East London Cancer Network and Kent & Medway Cancer Network.
Dr Dunn is the Research lead for the Oesophageal section of the British Society of Gastroenterology. He is an advisor to NICE on eosinophilic oesophagitis and Barrett’s oesophagus. Additionally, Dr Dunn is a trustee for Barrett’s Oesophagus UK, and a medical advisor for Action Against Heartburn and Guts UK.
He was awarded a CRUK clinical fellowship at UCL and studied use of optical diagnostics and minimally invasive therapies for the treatment of Barrett’s oesophagus. He gained his PhD in 2011 and has presented his work at national and international meetings. His work on treatment of Barrett’s oesophagus with RFA, and the use of biomarkers to predict cancer progression, has won prizes.
He has published in high impact factor journals and book chapters. He currently holds Honorary Senior Lecturer posts at Kings College London and previously at Oslo University in the Institute of Medical Informatics. He has been awarded a grant for a trial of RFA vs. Sham for symptomatic cervical inlet patch (Medtronic) and is CI for this study. He is a PI for AspECT, SPIT and HALO RFA registry at GSTT.
Expertise
- Bowel Disease
- IBD
- Crohn’s Disease
- Ulcerative Colitis
- Colon Polyps
- Lynch Syndrome
- Diarrhoea
- Abdominal Pain
- Indigestion
- Dyspepsia
- Constipation
- Reflux
- Barrett’s Oesophagus
- HALO Radiofrequency Ablation
- Endoscopic Mucosal Resection
- Inlet Patch
- Globus
- Eosinophilic Oesophagitis
Overview
- Age of patients seen
- 18+
- Qualifications
PhD
MRCP
BSc
- Languages spoken
- English
- Online profiles
- Professional memberships
Member of the British Society of Gastroenterology
Member of the American Gastroenterological Association
Member of the British Association for Parenteral and Enteral Nutrition.
Consultations and services
- Self-pay available from £275
- Health insurance
- Self-pay available from £175
- Health insurance
Insurers covered


- +5 more
- Allianz Partners
- Bupa International
- Cigna International
- Healix
- Henner
Tests & treatments
Conditions & symptoms
Locations
Loading
Frequently asked questions
Yes, but only for certain services. Some consultations, assessments, and treatments can be booked directly, while others require a GP or specialist referral. Please check the relevant service page for guidance, and contact the centre if you’re unsure.
We aim to offer appointments as quickly as possible, and many services have same-day or next-day availability. Waiting times vary depending on the appointment type, specialty, and consultant availability, but our team will always offer the earliest suitable appointment.
Yes. You can arrange an appointment for a family member, or someone you care for, just let us know when you get in touch. We’ll need their details and consent to complete the booking, unless you're their legal guardian or have power of attorney.
Your first consultation includes a detailed discussion of your symptoms, medical history, and lifestyle factors, followed by a thorough examination. It’s helpful if you can bring the results of any previous investigations with you, as well as a list of your current medications. Come with a comfortably full bladder so you can provide a urine sample if requested.