Dr. Constantinos Parisinos

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

• Heartburn / acid reflux
• Bloating, abdominal pain, changes in bowel habits, positive FIT test, faecal calprotectin
• Irritable Bowel Syndrome (IBS)
• Liver disease (e.g. MASLD)
• Gallstones and bile duct problems
• Pancreatic conditions, pancreatic cancer
• Unexplained weight loss or anaemia
• Colonoscopy and polypectomy
• Interventional endoscopy: ERCP & EUS, enteral stenting

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.