Dr John Jacob
Qualifications
MBBS , BMedSci (Hons), FRCP Gastroenterology
GMC number: 6105949
Practising since: 2004
Specialties
Gastroenterology, Gastrointestinal surgery
Sub-specialties: Upper Gastrointestinal Surgery
Consultation times
- Weekly on a Monday
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About
Dr Jacob is a highly experienced Consultant Gastroenterologist with a special interest in advanced endoscopic procedures. He plays a key role in bowel cancer screening and leads the colorectal multidisciplinary team (MDT), helping to coordinate expert care for patients with complex conditions.
Dr Jacob specialises in minimally invasive techniques to treat polyps and other abnormalities in the digestive tract, including:
- Endoscopic mucosal resection (EMR)
- Endoscopic submucosal dissection (ESD) in both the upper and lower gastrointestinal (GI) tract
- Full thickness resection for complex polyps
He also performs and reports on capsule endoscopy – a non-invasive test using a small camera to examine the small bowel and colon.
In addition to his clinical work, Dr Jacob is passionate about education. He regularly teaches at the United European Gastroenterology Summer School, helping train future specialists from across Europe in advanced endoscopy techniques.
Special interests
Dr Jacob’s clinical interests lie in the use of Artificial Intelligence (AI) to enhance endoscopy, improving the quality and safety of endoscopy and colonoscopy procedures, managing inflammatory bowel disease (IBD), performing polypectomies and interpreting capsule endoscopy.
Languages spoken
English
Treatments and tests offered by Dr John Jacob at Nuffield Health
- Diagnostic endoscopy
Locations Dr John Jacob works with
Related experience
Research
Dr Jacob is actively involved in clinical research aimed at improving outcomes for patients undergoing gastrointestinal investigations and treatments. His recent publications include:
COLODETECT Trial – A major multicentre study published in The Lancet Gastroenterology & Hepatology (Oct 2024), comparing standard colonoscopy with AI-assisted colonoscopy using the GI Genius module. The trial demonstrated how artificial intelligence can enhance polyp detection in routine clinical practice. [PMID: 39153491]
Multidisciplinary Management of Complex Colorectal Polyps – Published in Colorectal Disease (2024), this study highlights the benefits of a team-based approach in managing patients with complex polyps, improving decision-making and patient outcomes. [PMID: 39472772]
- CESCAIL Study – Featured in BMC Gastroenterology (May 2025), this research explored factors that predict when patients undergoing colon capsule endoscopy may need to transition to conventional optical endoscopy. [PMID: 40355828]
Memberships
- Royal College of Physicians of Edinburgh
- British Society of Gastroenterology
- United European Gastroenterology Faculty
- European Society of Gastrointestinal Endoscopy
Other posts held
- Consultant Gastroenterologist at University Hospital of North Tees
Insurers Dr John Jacob works with
Dr John Jacob works with the following private medical insurance providers:
- Allianz
- Aviva Health
- AXA Health
- AXA - Global Healthcare
- Bupa
- Healix
- Healix Healthcare
- Vitality Health (Pru Health)
- WPA
Declaration
Dr John Jacob does not hold a share or financial interest in this hospital, another Nuffield Health hospital or the company.
Dr John Jacob does not have a share or financial interest in equipment used at this hospital or another Nuffield Health hospital.
Dr John Jacob does not hold any paid advisory role(s) at this hospital or on behalf of Nuffield Health.