Please be aware that during the COVID-19 Outbreak Dr Kallis will not be undertaking any face-to-face consultations. Telephone consultations are available, please contact for further information.
Dr Yiannis Kallis is a Consultant Hepatologist and Gastroenterologist at the Royal London Hospital (Barts Health NHS Trust) and the Royal Free Hospital London, two of the UK's leading teaching hospitals, where his practice covers a broad range of gastro-intestinal diseases. He specialises in liver disease and disorders of the pancreas and bile ducts, and runs the NE London outreach liver transplant network. He is Clinical Lead for Hepatology at the Royal London Hospital.
He is a highly skilled in diagnostic and therapeutic endoscopy and colonoscopy, with a particular expertise in complex ERCP (endoscopy of the bile duct and pancreatic duct). He is clinical lead for ERCP services at Bart Health for the HPB cancer board. He is at the forefront of research into developing novel endoscopic treatments for pancreato-biliary cancers, and is a specialist advisor to the National Institute of Health and Care Excellence (NICE) in this field. He serves on the British Society for Gastroenterology (BSG) liver committee.
He graduated from Cambridge University with Distinction and undertook postgraduate specialty training across several leading London teaching hospitals. He was awarded a PhD in 2010 for his research into liver fibrosis, stem cells and regeneration at Imperial College London and Cancer Research UK, and publishes his work in high impact peer-reviewed journals.
He is currently an Honorary Clinical Senior Lecturer at Barts and the London School of Medicine and Dentistry, QMUL, where he is a principal investigator on several multi centre clinical trials in treatments for advanced liver disease and for inflammatory disorders of bile ducts. He regularly lectures in gastroenterology and hepatology and supervises MSc student projects in liver disease at QMUL. He sits on the writing group for national guidelines in liver disease.
- Therapeutic endoscopy
- Portal Hypertension
- Abnormal LFTs (liver function tests)
- Alcohol related liver and GI disorders
- Fatty liver disease
- Abdominal Pain
- Viral hepatitis
- Liver disease
- Pancreas, bile duct and gallbladder diseases
- Liver Cancer
- Liver transplantation
- Trinity College Cambridge, MA(Hons) MB BChir
- Royal College of Physicians London, FRCP
- Imperial College London, PhD
- Member of the British Society of Gastroenterology, the British Association for the Study of the Liver, and the European Association for the Study of the Liver
Dr Kallis is an exceptional clinician, and a valuable colleague and opinion. Patients I have referred to him have been delighted. I would trust him to treat my family.
Dr Kallis is an excellent physician and liver/HPB specialist. I recommend him highly
Dr Kallis, is a hugely experienced and dedicated physician who is always empathic and patient focussed – I would recommend him without hesitation
An excellent opinion and continue to work together. Would recommend.