Dr Mark Tremelling

Consultant Gastroenterologist


Specialises in

  • Colonoscopy
  • Gastroscopy
  • Flexible sigmoidoscopy
  • Bowel disease
  • Bowel cancer

Also available for:

Virtual consultations:

I have been a Consultant Gastroenterologist at the Norfolk and Norwich University Hospital since February 2010 where I provide a service in general and specialist gastroenterology. I am also a clinical lead for inflammatory bowel disease and have expertise in diagnostic and therapeutic endoscopy including gastroscopy, sigmoidoscopy and colonoscopy.

I qualified from St Mary's Hospital Medical School, London in 1997 then started subspecialty training in 2002 in the Eastern Deanery. I developed an interest in inflammatory bowel diseases while doing research at Addenbrooke's Hospital, Cambridge and have many research publications on the genetics of inflammatory bowel diseases. I gained my MD in 2000.


General Medical Council Number: C4438359

Treatment information

Some of the principal treatments carried out by Dr Mark Tremelling at Spire include:


Other treatments

  • Acid reflux
  • Bowel disease
  • Endoscopy
  • Gastro-oesophageal Reflux Disease (GORD)
  • Gastrointestinal cancer
  • Inflammatory Bowel Disease (IBD)

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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 Norwich Hospital.


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Additional information

Gastrointestinal cancer
Inflammatory bowel disease

Special clinical interests: Irritable bowel syndrome.

Professional memberships

Member of Royal College of Physicians (London)

Member of British Society of Gastroenterologists

The genetics of inflammatory bowel disease (Crohn's disease and ulcerative colitis).

Consultant Gastroenterologist, Norfolk and Norwich University Hospital.

I am married with four children (all boys). Previously I was an extremely keen rugby player - having retired I am now a mini rugby coach. I am also a keen cyclist and also enjoy golf and playing the piano badly.

Telephone 01603 255 574
Private secretary Anna Smith
Private secretary telephone 01603 813 732
Private secretary email anna.smith@healthshare.org.uk