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Our Team

Professor Patrick Kennedy

Consultant Hepatologist

Professor Patrick Kennedy is a Consultant Physician and Hepatologist. His research work in liver disease is known internationally and he has been at the vanguard of improving patient care for over a decade. He is the Founder of Leaders in Liver Health.   

Dr Bill Griffiths

Consultant Hepatologist/Specialty Lead

Dr. Bill Griffiths FRCP PhD is a Consultant Hepatologist and Specialty Lead at Addenbrooke’s Hospital, Cambridge, specializing in inherited liver disorders like haemochromatosis. He is also involved in teaching, research, and professional organizations.

Dr Upkar Gill

Consultant Hepatologist

Dr Upkar Gill is a consultant hepatologist at the Royal London Hospital and researcher at Queen Mary University of London. He has an interest and expertise in viral and metabolic liver disease. 

Dr Yiannis Kallis

consultant hepatologist

Dr. Yiannis Kallis is a consultant hepatologist at the Royal London and Royal Free Hospitals. He has special interest in autoimmune liver conditions, bile duct diseases and in managing cirrhosis. 

Dr Upkar Gill (Uppy)

liver specialist

Dr Gill is a liver specialist with a strong immunological research interest in viral & metabolic liver disease. He undertook his primary medical degree at The University of Leeds and completed post-graduate training in Leeds and London. He has expertise in all areas of liver disease with a focus on viral hepatitis.

He was appointed as a Senior Clinical Lecturer in 2023 at QMUL and an Honorary Consultant Hepatologist at Barts Health NHS Trust.  He has  strong background in hepatitis B immunology having trained in London and Singapore in world class labs during doctoral and post-doctoral training funded by the Wellcome Trust and NIHR. His current work focusses on investigating defects of immune cells in chronic hepatitis B (CHB) infection in relation to metabolic diseases.

This work relates to his previous research of harnessing the immune response to improve treatment strategies in CHB. He has shown complementary immune restoration with different treatment strategies in CHB, forming the springboard for the continued investigation of novel approaches and treatment strategies in CHB, which has led to multiple novel agents being tested in commercial phase 1, 2 and 3 clinical trials. He has published and contributed to several landmark papers, (>65 peer reviewed articles) and multiple book chapters. He has received the highest clinical research accolades including the Sir Francis Avery Jones Research medal and the Sheila Sherlock Award for research in the field. Dr Gill is a liver specialist with a research interest in viral & metabolic liver disease. He trained in Leeds and London and is an expert in all areas of liver disease, particularly viral hepatitis. He was appointed Senior Clinical Lecturer at QMUL and Honorary Consultant Hepatologist at Barts Health NHS Trust in 2023.  His research has investigated how immune cells are affected by chronic hepatitis B (CHB) infection and metabolic diseases, and how the immune response can be harnessed to improve CHB treatment. He has published over 65 peer-reviewed articles and book chapters, and has received the Sir Francis Avery Jones Research medal and the Sheila Sherlock Award.Dr Gill is a liver specialist with a research interest in viral & metabolic liver disease. He is an expert in all areas of liver disease, particularly viral hepatitis.  His research has investigated how immune cells are affected by chronic hepatitis B (CHB) infection and metabolic diseases, and how the immune response can be harnessed to improve CHB treatment. He has published over 65 peer-reviewed articles and book chapters, and has received the Sir Francis Avery Jones Research medal and the Sheila Sherlock Award.

Dr Gill is a liver specialist with a research interest in viral & metabolic liver disease. He is an expert in all areas of liver disease, particularly viral hepatitis.  His research investigates how immune cells are affected by chronic hepatitis B infection and metabolic diseases. He has published over 65 peer-reviewed articles and has received the Sir Francis Avery Jones Research medal and the Sheila Sherlock Award.Dr Gill is a liver specialist with a research interest in viral & metabolic liver disease. He is an expert in all areas of liver disease, particularly viral hepatitis.  His research investigates how immune cells are affected by chronic hepatitis B infection and metabolic diseases. He has published over 65 peer-reviewed articles and has received the Sir Francis Avery Jones Research medal and the Sheila Sherlock Award.

Dr Yiannis Kallis

Consultant Hepatologist

A consultant hepatologist at the Royal London Hospital and the Royal Free Hospital since 2011. He is also an honorary senior lecturer at Queen Mary University of London. He has particular interests in autoimmune diseases of the liver of bile ducts, cirrhosis, advanced therapeutic endoscopy and in liver transplantation.

Dr. Yiannis Kallis is a consultant hepatologist at the Royal London and Royal Free Hospitals since 2011, and an honorary senior lecturer at Queen Mary University of London.

His expertise includes autoimmune liver and bile duct diseases, cirrhosis management, advanced therapeutic endoscopy, and liver transplantation. Dr. Yiannis Kallis is a consultant hepatologist at the Royal London and Royal Free Hospitals and an honorary senior lecturer at Queen Mary University of London. His expertise includes autoimmune liver and bile duct diseases, cirrhosis, advanced therapeutic endoscopy and liver transplantation.

Dr Bill Griffiths

FRCP PhD

Consultant Hepatologist/Specialty Lead, Addenbrooke’s Hospital, Cambridge Expert in inherited liver disorders including haemochromatosis Dr. Bill Griffiths FRCP PhD is a Consultant Hepatologist and Specialty Lead at Addenbrooke’s Hospital, Cambridge. He specialises in inherited liver disorders, particularly haemochromatosis.

He’s also likely involved in teaching, research, and professional organizations.Dr. Bill Griffiths FRCP PhD is a Consultant Hepatologist and Specialty Lead at Addenbrooke’s Hospital, Cambridge, specializing in inherited liver disorders, particularly haemochromatosis. He likely also teaches, researches, and participates in professional organizations.

Professor Patrick Kennedy

MB BCH BAO BMEDSCI FRCP MD

A leading liver specialist and his work in viral liver disease is known internationally. Trained at the University College in Dublin, he completed post-graduate training in London and was appointed as a Senior Lecturer at Barts and The London School of Medicine and Dentistry in 2009. He has produced novel work redefining the disease phase in Chronic Hepatitis B (CHB) and the main focus of his research work is around broadening treatment candidacy and the development of individualized treatment strategies for viral liver disease.

Professor Patrick Kennedy is a Consultant Hepatologist and Gastroenterologist specializing in viral hepatitis and liver disease. He is an expert in liver assessment and the evaluation of liver lesions. His research has led to groundbreaking discoveries, including the redefinition of the disease phase in Chronic Hepatitis B. He is a leading figure in the field of liver disease and his contributions are recognized globally.Professor Patrick Kennedy is a Consultant Hepatologist and Gastroenterologist specializing in viral hepatitis and liver disease.

He is an expert in liver assessment and the evaluation of liver lesions. His research has led to groundbreaking discoveries, including the redefinition of the disease phase in Chronic Hepatitis B.Professor Patrick Kennedy is a Consultant Hepatologist and Gastroenterologist specializing in viral hepatitis and liver disease. He is an expert in liver assessment and the evaluation of liver lesions. His research has led to groundbreaking discoveries, including the redefinition of the disease phase in Chronic Hepatitis B.