Dr Jonathan Landy

Gastroenterology Consultant


Specialises in

Also available for:

Virtual consultations:

My practice involves the diagnosis and management of all aspects of gastroenterology and liver disease including diagnostic and therapeutic endoscopy and colonoscopy. I am an accredited national bowel cancer screening colonoscopist and have a special interest in therapeutic colonoscopy and endoscopy training as well as inflammatory bowel diseases, clostridium difficile infection and faecal transplantation.

Having graduated from the University of Birmingham in 2002, I completed my specialist training in gastroenterology and general internal medicine on the North West Thames training rotation and was awarded a certificate of completion of training in gastroenterology and general internal medicine in August 2015.

I worked as a specialist registrar for four years at St Mark's Hospital, including a period of research and an advanced endoscopy fellowship. I also worked at Chelsea and Westminster and West Herts Hospitals before being appointed to my consultant post at West Herts in July 2016.

I was awarded a Doctor of Philosophy PhD from Imperial College London in 2015 following my period of research into the interactions between the immune system and the gut microbiota causing inflammatory bowel diseases, specifically looking at pouchitis. As a part of my research I ran the first UK pilot study of faecal transplantation for inflammatory bowel diseases.


Treatment information

Some of the principal treatments carried out by Dr Jonathan Landy at Spire include:


Other treatments

  • Bowel disease
  • Clostridium difficile
  • Endoscopy
  • Faecal microbiota transplantation
  • Gastrointestinal cancer
  • Gastrointestinal pathology
  • Inflammatory bowel disease (IBD)
  • Liver disease

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Important information about Covid-19 tests

Spire Harpenden Hospital is only able to provide Covid-19 tests to patients undergoing surgery at our hospital. Covid-19 testing or antibody tests are not available as a standalone service.


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Additional information

Bowel disease
Gastrointestinal pathology
Inflammatory bowel disease
Liver disease

Special clinical interests: Faecal microbiota transplantation, colonoscopy, inflammatory bowel disease, gastroscopy.

PhD / London / 2015
Imperial College London

MRCP / London / 2005
Royal College of Physicians

MBChB / Birmingham / 2002
University of Birmingham Medical School

BMedSci (Neuroscience) / Birmingham / 1999
University of Birmingham Medical School

Professional memberships

Royal College of Physicians

British Society of Gastroenterology

European Society of Gastrointestinal Endoscopy

European Crohn's and Colitis Organisation

Professional leadership

JAG Endoscopy Training course lead West Hertfordshire Hospitals NHS Trust
Endoscopy training lead West Hertfordshire Hospitals NHS Trust
Gastroenterology Research Lead West Hertfordshire Hospitals NHS Trust

West Hertfordshire Hospitals NHS Trust.

I am married with two young children and I am an avid cyclist, keen swimmer, squash player and footballer. I'm also a fanatical rugby fan, ambitious skier and surfer and a voracious consumer of science fiction novels.

Private secretary Marguerite Watkins
Private secretary telephone 01582 765 015
Private secretary email primesecretarial@gmail.com