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Dr. Constantinos Parisinos

BSc (Hons), MBChB, MSc, MRCP, PhD

Learn more about Dr. Parisinos, a leading Gastroenterologist and JAG accredited Interventional Endoscopist.

About Dr. Parisinos

​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 achieve 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, University London College Hospitals NHS Foundation Trust and Hammersmith Hospital, Imperial College Healthcare NHS Trust, and received a competitive UEG Fellowship to further specialise in EUS at the University of Santiago de Compostela, Spain. He holds an NHS Consultant post at the Royal London Hospital, Barts Health NHS Trust, and is an Honorary Senior Lecturer at Queen Mary University of London. He is an elected member of multiple BSG committees, aiming at improving standards of care within endoscopy and gastroenterology at a national level. 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.

Gastroenterologist at a private clinic
Professional Awards & Academic Recognition

Dr Constantinos Parisinos has received national and international awards, competitive fellowships, and research grants recognising his clinical excellence, academic achievements, and contributions to gastroenterology and endoscopy.

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NHS and Academic Positions

He holds an NHS Consultant post at the Royal London Hospital, Barts Health NHS Trust, and is an Honorary Senior Lecturer at Queen Mary University of London. Passionate about education, he is also the Endoscopy Training Lead at the Royal London Hospital and serves on several British Society of Gastroenterology (BSG) committees, helping improve national standards of care.

Training & Specialist Fellowships

He holds an NHS Consultant post at the Royal London Hospital, Barts Health, and is an Honorary Senior Lecturer at Queen Mary University London. Passionate about education, he is also the Endoscopy Training Lead at the Royal London Hospital and serves on several British Society of Gastroenterology (BSG) committees, helping improve national standards of care.

Historic university building with central dome and courtyard

Research

Alongside his clinical practice, Dr Parisinos 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 the Wellcome Trust and NIHR, focuses on improving care for liver and metabolic conditions through data and genetics. He has published widely in leading journals including Science, Journal of Hepatology, Gastroenterology, and The Lancet Digital Health.

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Professional Memberships & Affiliations
  • British Society of Gastroenterology

  • Royal College of Physicians

  • European Society of Gastrointestinal Endoscopy

ESGE (European Society of Gastrointestinal Endoscopy) logo
Research Highlights 

Dr. Parisinos’ research focuses on improving outcomes in liver disease and metabolic health through innovative approaches, including the use of big data and genomics. His work is widely recognized and supported by leading research organizations.

Liver Disease: Investigation, progression, and treatment strategies.

Metabolic Health: Metabolic disorders and their impact on liver function.

Big Data & Genomics: Advanced analytics and genomics to personalize care.

Backed by the Wellcome Trust, NIHR, and other prominent research bodies.

Contributor to multiple textbooks in gastroenterology and hepatology.

Publications: Authored articles in high-impact journals such as Science, Gastroenterology, Journal of Hepatology, and The Lancet Digital Health.

Centre of the Cell building exterior in London

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