Dr Chan

  • Acid reflux
  • Inflammatory bowel disease (IBD)
  • Abdominal pain
  • Irritable bowel syndrome (IBS)
  • Coeliac disease
  • Crohn's disease

Dr Derek Chan

GMC: 6076984

Dr Derek Chan is a consultant gastroenterologist with a wealth of experience, particularly for function bowel disorders, such as irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). He also has expertise in managing reflux, change in bowel habits and abdominal pain. Dr Chan currently practices at Spire St Anthony's Hospital in Sutton and at Ramsay Ashtead Hospital, Ashtead.

Dr Chan did his undergraduate studies at St Bartholomew's and The Royal London Hospital Medical School, graduating in 2003. Afterwards, he undertook his postgraduate training within the South West Thames area, spending numerous years conducting research at St George's Hospital, London. This research investigated the role of diet and gut bacteria on inflammatory bowel disease.

Dr Chan has experience in all areas of gastroenterology, and pays great attention to giving fantastic patient care, as recognised by his recent Certificate of Excellence award from IWantGreatCare.
  • Professional experience

    • Consultant Gastroenterologist and General (Internal) Medicine, Spire St Anthony's Hospital (present)
    • Consultant Gastroenterologist and General (Internal) Medicine, Ramsay Ashtead Hospital (present)
    • Consultant Gastroenterologist and General (Internal) Medicine, St Helier Hospital, Surrey (present)
  • Education

    • BSc, Royal Free Hospital School of Medicine (2000)
    • MB BS, St Bartholomew's & The Royal London School of Medicine (2003)
    • MRCP, Royal College of Physicians (2009)
    • MRCP (UK) Gastroenterology, Royal College of Physicians (2016)
  • Professional membership

    • Royal College of Physicians
    • British Society of Gastroenterology
    • British Medical Association
  • Teaching posts

    • Regularly teaches junior doctors and undergraduate medical students.
  • Publications and conferences

    • 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.
    • Inflammatory bowel disease and exercise: results of a Crohn's and Colitis UK survey - Frontline Gastroenterology. 2013 Jul 31:flgastro-2013.
    • Post Insertion Care of The CORFLO PEG - Guidelines - February 2011, Epsom and St Helier Hospitals, Surrey
    • View Dr Chan's publications on ResearchGate here.
  • Prizes and awards

    • Certificate of Excellence award from I Want Great Care
    • Wynne Davies Junior Doctors’ Prize Award, The Alexandra Hospital, Worcestershire, January 2004 

 Diseases, Medical Tests and Treatments

  • Abdominal pain
  • Achalasia
  • Acid reflux
  • Alcoholic liver disease
  • Alcoholism
  • Ascites
  • Autoimmune hepatitis
  • Barrett's oesophagus
  • Biopsy
  • Bloated stomach
  • Blood in stool (rectal bleeding)
  • Bowel cancer
  • Bowel cancer screening
  • Capsule endoscopy
  • Cholelithiasis (gallstones)
  • Chronic diarrhoea
  • Cirrhosis
  • Clinical nutrition
  • Coeliac disease
  • Colic
  • Colitis
  • Colon cancer
  • Colonoscopy
  • Colorectal cancer
  • Constipation
  • Crohn's disease
  • Diarrhoea
  • Digestive diseases
  • Diverticular disease
  • Diverticulitis
  • Drug induced liver injury
  • Dysmotility
  • Dysphagia
  • Eating disorders
  • Endoscopic mucosal resection (EMR)
  • Endoscopy
  • Fatty liver
  • Food allergies
  • Food intolerance
  • Gallstones
  • Gastrointestinal bleeding
  • Gastrointestinal endoscopy
  • Gastroscopy
  • Halitosis
  • Helicobacter pylori
  • Hepatic encephalopathy
  • Hepatorenal syndrome
  • Hiatal hernia
  • Indigestion (dyspepsia)
  • Inflammatory bowel disease (IBD)
  • Intestinal failure
  • Iron deficiency
  • Irritable bowel syndrome (IBS)
  • Lactose intolerance
  • Liver
  • Liver biopsy
  • Liver cancer
  • Liver cyst
  • Liver disease
  • Liver function tests
  • Malnutrition
  • Morbid obesity
  • Nutrition
  • Obesity
  • Oesophageal manometry
  • Oesophageal varices
  • Oesophagitis
  • Pancreatic cancer
  • Pancreatitis
  • pH monitoring
  • Piles (haemorrhoids)
  • Polypectomy
  • Polyps
  • Primary biliary cholangitis (PBC)
  • Primary sclerosing cholangitis (PSC)
  • Rectal cancer
  • Rectosigmoidoscopy
  • Second medical opinion
  • Short bowel syndrome
  • Stomach cancer
  • Stomach flu
  • Stomach ulcer
  • Ulcerative colitis
  • Viral hepatitis
  • Virtual colonoscopy
  • Vomiting

Make an appointment


  • Spire St Anthony's Hospital
    801 London Road, Worcester Park SM3 9DW - London (Sutton)
  • Ramsay Ashtead Hospital
    The Warren KT21 2SB - Ashtead


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Can you get rid of fat in the liver?

How can you reverse fatty liver disease and what lifestyle changes should you make? Consultant gastroenterologist, Dr Derek Chan, explains to our readers what this disease is, how it's detected in patients and what you can do to remove fat in your liver.

Read more