Dr Derek Chan

Consultant Gastroenterology and General (Internal) Medicine


"I enjoy working at St Anthony's Hospital, having a great team and facilities to offer great patient care."

Specialises in

  • Bowel disorders
  • Digestive diseases and acid reflux
  • Abdominal pain
  • Pancreatic and liver disease
  • Upper and lower GI endoscopy

Also available for:

Virtual consultations:

Currently I am a Consultant in Gastroenterology and General Internal Medicine, as well as lead in Nutrition at Epsom and St Helier Hospitals NHS Trust. I am experienced and practice in all aspects of gastroenterology. I aim to provide a positive patient experience and have reviews confirming this.

I graduated from St Bartholomew's and the Royal London Hospital Medical School in 2003. My post-graduate medical training was in the South West Thames region, with several further years spent in research at St George's Hospital, looking into the role of diet and the gut bacteria in inflammatory bowel disease. I have published research and presented to audiences nationally and internationally.

I am experienced and practice in all aspects of gastroenterology, including: functional bowel disorders (such as irritable bowel syndrome), inflammatory bowel disease, coeliac disease, gastro-oesophageal reflux disease, pancreato-biliary disease, gastro-intestinal cancer, acute and chronic liver disease and upper and lower gastrointestinal endoscopy.


General Medical Council Number: C6076984

Treatment information

Some of the principal treatments carried out by Dr Derek Chan at Spire include:


Other treatments

  • I treat children and young people from 16 to 18 years old 

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Important information about Covid-19 tests

COVID-19 testing or antibody tests are not available as a standalone service at Spire St Anthony's Hospital.


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Additional information

Bowel disease
Gastrointestinal cancer
General medicine
Inflammatory bowel disease
Liver disease
Motility disorder

BSc / Royal Free Hospital School of Medicine / 2000
Bachelor of Science

MBBS / St. Bartholomew's and The Royal London School of Medicine / 2003
Bachelor of Medicine, Bachelor of Surgery

MRCP / Royal College of Physicians / 2009
Membership of the Royal Colleges of Physicians

MRCP (UK) / Royal College of Physicians / 2016
Membership of the Royal Colleges of Physicians (UK)

FRCP / Royal College of Physicians / 2021
Fellow of the Royal College of Physicians

Professional memberships

British Medical Association

British Society of Gastroenterology

Royal College of Physicians

Professional leadership

Clinical Lead for Nutrition St Helier Hospital


Faecal calprotectin: factors affecting levels and its potential role as a surrogate marker for risk of development of Crohn’s Disease - BMC gastroenterology. 2016 Oct 7;16(1):126.

Treatment of Crohn’s Disease with an IgG4-Guided Exclusion Diet: A Randomized Controlled Trial - Digestive diseases and sciences. 2016 Apr 1;61(4):1148-57.

Differences in intestinal metaplasia in Barrett's oesophagus patients in an ethnically diverse South London population - Indian Journal of Gastroenterology. 2015 Sep 1;34(5):399-403.

Comments on Measures of Obesity and Risk of Crohn's Disease and Ulcerative Colitis - Inflammatory bowel diseases. 2015 Aug 1;21(8):E17-8.

What is known about the mechanisms of dietary influences in Crohn’s Disease? - Nutrition. 2015 Oct 31;31(10):1195-203.

New Barrett's oesophagus surveillance guidelines: significant cost savings over the next 10 years on implementation - Frontline Gastroenterology. 2014 Jun 30:flgastro-2014

Epsom and St Helier Hospitals NHS Trust.