Bsc (Hons), MBChB, MSc, MRCP, PhD
17 years of experience
London, W1G 0AR
(+1 more)
70 connections in healthcare
Skill endorsed
by Professor Stephen P Pereira, Dr Rooshi Nathwani and 10 other professionals
17 years of experience
London, W1G 0AR
(+1 more)
70 connections in healthcare
Skill endorsed
by Professor Stephen P Pereira, Dr Rooshi Nathwani and 10 other professionals
Areas of expertise
Contact
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Dr Constantinos Parisinos - Consultant Gastroenterologist & Pancreatobiliary Specialist
Dr Constantinos Parisinos is a highly experienced Consultant Gastroenterologist and Pancreatobiliary (PB) specialist based in London. He offers expert care for a wide range of digestive and liver conditions, including acid reflux, abdominal pain, irritable bowel syndrome (IBS), liver disease, gallstones, pancreatitis, and bowel cancer screening.
He performs advanced diagnostic and therapeutic procedures, including gastroscopy, colonoscopy, endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP), helping patients get fast, accurate answers and effective treatment plans.
Dr Parisinos trained at the University of Edinburgh and completed specialist gastroenterology training in London. He undertook prestigious PB fellowships at UCLH and Imperial College, and received a competitive UEG Fellowship to further specialise in EUS at the Univesity of Santiago de Compostela, Spain.
Alongside his clinical work, he holds a PhD in Health Data Science from UCL and an MSc in Public Health from the London School of Hygiene & Tropical Medicine. His award-winning research, funded by leading research organisations including the Wellcome Trust and NIHR, focuses on improving care for liver and metabolic conditions using data and genetics. He has published widely in leading journals including Science, J Hepatology, Gastroenterology, and The Lancet Digital Health.
Dr Parisinos believes in personalised, compassionate care and works closely with each patient to understand their symptoms, explain their options clearly, and deliver the best possible outcomes.
Areas of Expertise
Dr Parisinos is welcoming new private patients and offers consultations in central London (One Welbeck, The London Clinic, Nuffield Barts) from August 2025. Appointments available in-person and remotely.
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General Medical Council
No. 7041348
British Society of Gastroenterology (BSG)
No. BSG62201
European Society of Gastrointestinal Endoscopy (ESGE)
No. 30875970
University of Edinburgh
Medicine
Graduated 2009
Bsc (Hons), Physiology, 2006, University of Edinburgh
MBChB, 2009, University of Edinburgh
MRCP, 2012, Royal College of Physicians
MSc, Public Health, 2013, London School of Hygiene and Tropical Medicine
PhD, Health Data Science, 2019, University College London
CCT (UK), Gastroenterology, General Internal Medicine, 2021, GMC
Read publications and papers written by this specialist.
01 / 05 / 2025
A protocol for targeted B-lymphocyte depletion for the treatment of IgG4-related disease - PubMed
Published in Rheumatology
01 / 08 / 2020
Genome-wide and Mendelian randomisation studies of liver MRI yield insights into the pathogenesis of steatohepatitis - PubMed
Published in J Hepatology
01 / 08 / 2018
Variation in Interleukin 6 Receptor Gene Associates With Risk of Crohn's Disease and Ulcerative Colitis - PubMed
Published in Gastroenterology
01 / 09 / 2019
Genetic studies of abdominal MRI data identify genes regulating hepcidin as major determinants of liver iron concentration - PubMed
Published in J Hepatology
New appointment
£250Follow-up appointment
£2001 Welbeck St, Marylebone, London, London, United Kingdom, W1G 0AR
20 Devonshire Place, London, United Kingdom, W1G 6BW
Areas of expertise
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This summary was created by AI based on recent reviews
Dr. Constantinos Parisinos is professional and clear, and listens to patient concerns, building confidence and peace of mind. Patients appreciate his detailed explanations of procedures like colonoscopy, ERCP, and endoscopy; his careful, skilled approach makes these interventions smooth and efficient. Many patients find solutions for common gut problems, including bloating and diarrhoea.
I had the pleasure of meeting Dr Constantinos Parisinos at Welbeck and I must say I found his knowledge, compassion and general approach truly exceptional. I wholeheartedly recommend him to others fantastic Doctor and a really nice chap.
Dr Parasinos was very professional, knowledgeable and showed great empathy and care towards me. I really appreciated his clear and easy to understand explanations of my procedure and ensuring he answered all of my questions. I felt very well looked after and supported by Dr Parasinos and his medical team - thank you so much.

Thanks so much!
Overall good experience and excellent speed on getting same day blood tests before I moved.

Thank you!
Dr parasites was very considerate and claming through my whole procedure

Thanks very much!
Excellent service, delivered professionally and empathetically

Thanks so much - appreciated!
Dr Parsinos treats with a smile, that itself gives very much assurance that everything is under control. He explains things in detail to take a well informed decision.

Thank you!
I’m very grateful to be seen by Dr Parisinos and would highly recommend him. I felt my symptoms and concerns were really listened to. He’s very friendly and clearly cares about the wellbeing of his patients

Thanks very much!
Brilliant Dr. Gave me assurance and vital advice to maintain my guy health. In addition, gave me information and websites to help me manage my gut. This gave me peace of mind that I can do my own research to answer any additional queries I may have. Thank you

Thank you!
Fantastic experience with Dr Constantinos and the team. The London Clinic was very comfortable and the entire process was very smooth and efficient. I barely ever waited a single minute. The only thing that seemed unnecessary was arranging a family member or friend to escort you home after the procedure, due to the sedation, which was very mild. Overall really great care before/during/after the procedure, and the procedure itself was a total breeze (colonoscopy).

Thanks so much for your feedback! Having an escort to go home after sedation is UK policy after sedation, both privately and through the NHS. Thanks so much for your kind review!
I had a very positive experience with Dr Parisinos. From the first appointment, he was supportive, understanding, and highly professional. I have been dealing with gastro issues for a long time and, unfortunately, have seen other consultants who were quite dismissive of my symptoms. Dr Parisinos was different, he took the time to listen carefully, review all the information thoroughly, and focus on identifying the root cause rather than just treating the symptoms. This approach gave me real confidence that I am finally on the right path towards recovery. I would highly recommend Dr Parisinos to anyone looking for a consultant who is compassionate, attentive, and truly committed to helping patients improve their health.

Thanks so much for your feedback!
who previously trained with our Pancreaticobiliary Medicine Group at University College Hospital, and is now a consultant colleague who is expert in this area as well as general gastroenterology.
25 Jul 2026
Professor Stephen P Pereira
GastroenterologistHighly recommended colleague and expert in his field.
25 Jul 2026
Dr Rooshi Nathwani
GastroenterologistHappy to endorse Dr Parisinos, an excellent colleague with great expertise
27 Apr 2026
Professor Shahid Khan
Gastroenterologist
Dr Luke Tyson
GastroenterologistExplore videos from Dr. Constantinos Parisinos explaining process of procedures and other important things you should know before choosing your provider.

Leading Gastroenterology & Interventional Endoscopy, Pancreatobiliary Services in the heart of Central London. Situated in World-leading facilities including One Welbeck, The London Clinic, and Nuffield Health at St. Bartholomew's Hospital.
29 September 2025
Read articles from Dr. Constantinos Parisinos explaining process of procedures and other important things you should know before choosing your provider.
What are Dr. Constantinos Parisinos's reviews like?
Dr. Constantinos Parisinos's overall patient rating is 4.97 out of 5 stars on Doctify. This is based on 36 reviews.
What languages does Dr. Constantinos Parisinos speak?
Dr. Constantinos Parisinos speaks English and Greek
Where is Dr. Constantinos Parisinos located?
Dr. Constantinos Parisinos primarily practices at Welbeck, located at 1 Welbeck St, Marylebone, London, London, United Kingdom, W1G 0AR
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What are Dr. Constantinos Parisinos working hours?
Dr. Constantinos Parisinos is working Monday (17:30 - 19:30), Wednesday (18:00 - 20:00)
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Does Dr. Constantinos Parisinos accept new patients?
Dr. Constantinos Parisinos generally accepts new patients.
Get in touch with this specialist to enquire as a new patient