14 years of experience·★★★★⯨5.0(248 verified reviews)
2,055+
Patients seen
14
Years in practice
11
Publications
1
Languages spoken
PROFILE SUMMARY
About Dr John O'Donohue at a glance
Dr John O'Donohue is a Gastroenterology practitioner based in London, United Kingdom, practising at UAB Barcelona Teaching Hospital. They have 39+ years of clinical experience. Procedures focus on gp consultation, annual physical exam, vaccination administration, minor procedure (skin). Educated at UAB Barcelona (MD, 2008). Serves patients in London, United Kingdom and the surrounding area.
VERIFIED PHYSICIAN PROFILE · UPDATED MAY 2026
About
Dr John O'Donohue is a Consultant Gastroenterologist in London, UK. He has over 20 years’ experience and expertise in gastroenterology at consultant level.
What is important to him in his Practice
'Communication skills are particularly important to me. I pride myself on being a good
listener, first developing a rapport with patients before making a diagnosis
and agreeing a treatment plan with them. I also enjoy performing endoscopy well
and making it a comfortable and not an off-putting experience. It gives me
great satisfaction to see patients get the best treatment, and I take great
pride in my excellent feedback from my patients’.
Training and Qualifications
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, in the final
medical examinations in 1987.
Dr O'Donohue completed pre-registration training in Dublin before he moved to London in 1990 to undertake his specialist Registrar training in Gastroenterology and Hepatology at the world-famous King's College Hospital Liver Unit and at St.
Bartholomew's/Homerton Hospital, London. He undertook laboratory and clinical
research in King’s College Hospital resulting in numerous original publications
and his post-graduate MD thesis, awarded for original research including
numerous original publications in the field of primary biliary cholangiopathy. After
this he completed his specialist training as a Senior Registrar at the Western
Infirmary, Glasgow, gaining expensive experience in inflammatory bowel disease.
He then returned to London as a Consultant Physician and Gastroenterologist in the NHS in 1998, at Lewisham and King’s College Hospital, practising both in General Medicine and Gastroenterology. He started private practice in 2000.
Clinical Experience and Practice
Dr O’Donohue is dual trained as a physician in General Medicine as well as his specialty of gastroenterology. He has a comprehensive gastroenterology practice, both in the NHS and in private practice, and deals with a wide range of diseases of both the upper and lower digestive tract, including irritable bowel syndrome, inflammatory bowel
disease (Crohn’s and ulcerative colitis), investigation of iron-deficiency anaemia,
indigestion and heartburn.
Performing high-quality and comfortable endoscopy is a particular interest of his. He has extensive experience in endoscopy and receives referrals for advanced
procedures from other doctors, including complex (large) colonic polyps. He
performs a comprehensive range of endoscopic procedures, including gastroscopy,
colonoscopy, sigmoidoscopy, ERCP and video capsule endoscopy of the small
bowel. He offers patients a choice between local anaesthetic, conscious (mild)
sedation, or deep sedation depending on their preference and expectations.
Management Interests
He is involved in improving and developing endoscopy services nationally and internationally. His is an assessor and quality assurance lead in the JAG (Joint Accreditation Group) for endoscopy, having previously been Chair of the Accreditation Unit at JAG. He is involved in quality assurance of colonoscopy in the Bowel Cancer Screening service in the NHS, as Professional Clinical Advisor for London.
Dr O’Donohue has medical management responsibilities as Medical Director of Lewisham Hospital and Responsible Officer and deputy Chief Medical Officer for his NHS Trust, Lewisham and Greenwich NHS Trust. He leads medical engagement in clinical digital technology as Chief Clinical Information Officer.
Teaching and Training
He has been actively involved in teaching and training at both undergraduate and post-graduate level. He is an Honorary Senior Lecturer at King’s College London and a Fellow of the Royal College of Physicians. He teaches, trains and examines medical
students and post-graduate doctors, and contributes to the writing and quality assurance of post-graduate examinations for UK physicians (MRCP examinations) and the gastroenterology specialist exit examinations (European Specialty Examination in Gastroenterology and Hepatology).
Personal
When he's not being a gastroenterologist, he enjoys hiking, skiing and most of all spending time with his family. This includes four children, three of whom are now taller than him, and three dogs, two of whom are well behaved.
“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”
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Recent reviews
★★★★★ ✓ Verified
Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
★★★★★ ✓ Verified
Took time to listen and reviewed all my previous results. I would absolutely recommend.
★★★★☆ ✓ Verified
Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
SPECIALTIES & PROCEDURES
Dr John O'Donohue's Areas of Specialty
Each specialty below reflects the conditions and procedures Dr John O'Donohue treats, with the size of the national pool of United Kingdom doctors offering the same care.
Gastroenterology
Digestive-tract conditions including reflux, IBS, IBD, liver disease and colorectal screening.
Medical practice in United Kingdom is governed by country-specific licensing, professional standards, and patient-safety regulations. Practitioners listed here are registered with the relevant United Kingdom medical authority and operate within national rules on scope of practice, prescribing rights, and continuing professional development. Care delivered in London carries the additional benefits of local language support, in-person follow-up, and direct coordination with regional hospitals and labs. A verified profile means EuroClinics has cross-checked the practitioner or clinic against an official source (national medical register, public licence database, or the practitioner themselves), and that the data shown here matches that source as of the last verification date above.
Quick answers to the questions patients ask most. The same answers are surfaced to AI assistants via structured data.
What does John O'Donohue specialise in?
John O'Donohue specialises in Gastroenterology in London, GB. 39 years of clinical experience.
What conditions does John O'Donohue treat?
John O'Donohue treats conditions within Gastroenterology. View the full conditions-treated list on the profile.
Where does John O'Donohue practise?
John O'Donohue practises in London, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.
What languages does John O'Donohue speak?
John O'Donohue speaks English.
How do I book an appointment with John O'Donohue?
Use the "Request a booking" button on the profile to send an appointment request. Most appointments are confirmed within 24 hours; many slots are bookable instantly.
What do patients say about John O'Donohue?
John O'Donohue has a verified rating of 4.96/5 from 248 patient reviews. Read the most recent reviews on the profile page.
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