| Dr. med. | Thorsten | Book | Senior Physician Gastroenterology, Hepatology & General Internal Medicine, DRK Hospital Clementinenhaus Hanover | until 02/22 |
Dr. med. | Charlotte | Hintze | University Hospital Zurich | until 01/22 |
| PD Dr. med. | Christoph | Höner zu Siederdissen | Center for Internal Medicine Hanover-Wettbergen | until 07/21 |
| Dr. med. | Elmar | Jäckel | Medical Director of the Liver Transplant Program at the Transplant Centre, University of Toronto | until 01/22 |
| Dr. med. | Abdul-Rahman | Kabbani | Senior Physician, Medical Clinical Department III, St. Bernward Hospital Hildesheim | until 04/22 |
| Prof. Dr. med. | Ingmar | Mederacke | Director of the Clinical Department of Gastroenterology, Hepatology and Endocrinology, Helios Dr. Horst Schmidt Kliniken Wiesbaden | until 09/23 |
| Dr. med. | Young-Seon | Mederacke | until 10/24 | |
| Dr. med. | Ulla | Mersmann (née Schmelter) | Endokrinologikum Hannover at Raschplatz | until 04/21 |
| Prof. Dr. med. | Andrej | Potthoff | Practice Wunstorf | until 01/23 |
| Dr. med. | Kai | Rüger | Practice Stadthagen | until 09/21 |
| PD Dr. med. | Michael | Saborowski | Practice Göttingen (MVZ Internal Medicine) | until 04/21 |
| Dr. med. | Paul | Schirmer | KRH Hospital Großburgwedel | until 10/24 |
| Prof. Dr. med. | Arndt | Vogel | Head of hepatobiliary tumors and holder of the "Longo Family Chair" in liver cancer at the University Health Network and the University of Toronto | until 09/23 |
| Prof. Dr. med. | Torsten | Voigtländer | Head Physician Gastroenterology, Hepatology & General Internal Medicine, DRK Hospital Clementinenhaus Hanover | until 11/21 |
| Dr. med. | Steffen | Zender | Practice Gastroenterology Schmiedestraße 18, Hanover | until 01/23 |