Ben Warner has been a consultant in gastroenterology at both Guy's and St Thomas' NHS Foundation Trust and Dartford and Gravesham NHS Trust since April 2018. At Guy's and St Thomas', he has weekly hepatobiliary and hepatology clinics. He also does cholangioscopy and complex endoscopic retrograde cholangiopancreatography (ERCP). At Dartford and Gravesham NHS Trust, he is the clinical lead for upper gastrointestinal and hepatobiliary cancer. He links into tertiary centers to present patients every week. He is a senior lecturer at Kent and Medway Medical School.