Dr John W O'Donohue

Consultant Gastroenterologist

MD FRCP(Ireland) FRCP (UK)

Professional Membership

  • British Society of Gastroenterology
  • British Association for Study of the Liver

Clinical Interests

  • Bowel cancer screening
  • Inflammatory bowel disease
  • Irritable bowel syndrome
  • Gastrooesophageal reflux disease
  • Peptic ulcer
  • Coeliac disease
  • Hepatology


  • High quality colonoscopy - accredited colonoscopist for the UK Bowel Cancer Screening Programme with particular skill in polypectomy
  • Diagnostic and therapeutic upper GI endoscopy and ERCP, including percutaneous endoscopic gastrostomies (PEG)
  • Video capsule endoscopy

Personal profile

Dr O'Donohue qualified from University of Dublin, Trinity College, in 1987. He was awarded the Blaney Gold medal for First in Medicine, St James' Hospital. After house-jobs in Dublin, he moved to London in 1990 and trained in Gastroenterology and Hepatology at King's College Hospital Liver Unit, St. Bartholomews/Homerton London, and Western Infirmary, Glasgow.

He has been a Consultant in his present post since July 1998. In his current career he has developed a major interest in endoscopy, both in his clinical practice and in management and service redesign. He is UK chair of the Units subgroup of JAG and is London lead for quality assurance of the NHS Bowel Cancer Screening service as well as Director of the SE London program.

His has a major clinical interest in bowel cancer screening. He has expertise in performing high-quality colonoscopy and polypectomy, and has achieved accreditation as a consultant for advanced colonoscopy in bowel cancer screening. He also practises ERCP and capsule endoscopy. He and has a  comprehensive gastroenterology outpatient and inpatient practice dealing with common digestive diseases, and also continues to practice as general physician admitting acute medical patients.

Dr O’Donohue is also available for consultation at BMI The Blackheath Hospital Bowel Cancer Clinic.  The clinic welcomes referrals of people who wish to be screened, including adults who are at an increased risk, e.g. Those with a family history of bowel cancer or polyps and people over 50 years of age.

Year qualified: