The Department of Gastroenterology, Hepatology, Endocrinology, and Diabetology

The Department of Gastroenterology, Hepatology, Endocrinology, and Diabetology serves as a central pillar of the Max Grundig Klinik. Our focus lies on the precise diagnosis, individualized treatment, and sustainable prevention of diseases affecting the entire gastrointestinal tract, as well as associated organs—specifically the liver, gallbladder, and pancreas.

Based on patient-centered gastrointestinal diagnostics, we develop a tailored gastroenterological treatment plan specifically for you. Furthermore, thanks to our additional specialization in hepatology, we guarantee an in-depth, holistic analysis of liver-related complaints, as well as personalized care for all liver diseases.

In the fields of endocrinology and diabetology, we also combine state-of-the-art diagnostics with individualized therapy to treat hormonal and metabolic disorders in a targeted and sustainable manner.

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Chief Physician of Gastroenterology

Prof. Dr. med. Hans Weidenbach is a specialist in Gastroenterology and Internal Medicine, as well as a specialist in Hepatology, Endocrinology, and Diabetology.

Prof. Dr. med. Hans Weidenbach is a specialist in Gastroenterology and Internal Medicine, as well as a specialist in Hepatology, Endocrinology, and Diabetology. Professor Dr. Hans Weidenbach studied Chemical Engineering at the University of Dortmund until 1980. After a period of professional exploration within a hospital setting, he began studying Human Medicine at Philipps University Marburg in 1983. Upon passing his state medical examinations in 1989, he commenced his specialist training at the University Hospital Marburg, subsequently transferring to the University Hospital Ulm in 1991. There, he completed his advanced training to become a specialist in Internal Medicine, Gastroenterology, and Endocrinology. In 1996, he completed a period of advanced training in Hepatology at the Royal Free Hospital in London. In 1999, he was appointed Senior Physician and Head of Endoscopy at the University Hospital Ulm.

Following his Habilitation in 2001, he moved in 2002 to assume the position of Chief Senior Physician at the Second Department of Internal Medicine at the Klinikum rechts der Isar (University Hospital) of the Technical University of Munich. In 2004, he obtained certification as a Diabetologist (DDG), and in 2007, he was appointed Adjunct Professor at the Technical University of Munich. In 2009, Prof. Dr. Hans Weidenbach took up the position of Chief Physician of the First Department of Internal Medicine at the Stadtklinik Baden-Baden. From 2018 onwards, he headed the Department of General Internal Medicine and Gastroenterology at the Klinikum Mittelbaden, spanning its locations in Baden-Baden and Rastatt. He is a renowned expert in the field of gastroenterological endoscopy and a specialist in Hepatology, Endocrinology, and Diabetology. Thanks to his many years of leadership experience, he possesses a wealth of expertise in the field of Gastroenterology. Since April 2026, he has served as Chief Physician of Gastroenterology at the Max Grundig Klinik.

Medical Treatment Areas

- Gastric & Intestinal Disorders
- Screening Colonoscopy / Colorectal Cancer Screening
- Endoscopy & Colonoscopy
- Reflux & Heartburn
- Chronic Inflammatory Bowel Diseases (IBD)
- Irritable Bowel Syndrome & Functional Disorders
- Liver Diseases / Hepatology
- Gallbladder & Pancreatic Disorders
- Gastroenterological Diagnostics
- Food Intolerances
- Infectious Diseases of the Gastrointestinal Tract
- Hormonal and Metabolic Disorders
- Thyroid Disorders
- Adrenal Gland Disorders
- Diabetes Mellitus

In a confidential consultation, we will determine together whether our holistic gastroenterological treatment is suitable for you.

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We can help you with these services

Palpation of abdominal organs, lymph nodes, and kidneys; auscultation of bowel sounds.

Zwei Frauen Meditieren im Park vor der Klinik

Holistic, cutting-edge medicine requires teamwork: To ensure you receive optimal care, our Gastroenterology department collaborates closely with all disciplines of Internal Medicine as well as Psychosomatics.

Holistic, Interdisciplinary Gastroenterology for Your Individual Health

Through the direct integration of gastroenterology, hepatology, endocrinology, and diabetology into our department, we view your symptoms within a systemic context from the very first minute. We always evaluate findings as part of the bigger picture. Thanks to the streamlined pathways within our clinic, our teams collaborate across disciplines to ensure you receive your diagnosis promptly, directly, and with the highest level of medical safety.

Zwei Angestellte der Klinik Besprechen etwas auf dem Flur der Klinik

Gastroenterology and Psychosomatics: When the Gut Reacts and Causes Remain Unclear

Recurrent abdominal pain, bloating, and changes in bowel habits necessitate a clear medical explanation.

Gastroenterological and hepatological diagnostics reveal no inflammatory, infectious, or organic causes. Laboratory values and imaging are unremarkable. During the psychosomatic assessment, it becomes evident that stress, inner tension, and stressful life situations exacerbate the symptoms.

Together, we assess the physical findings and psychological factors. The symptoms meet the diagnostic criteria for irritable bowel syndrome, a functional bowel disorder characterised by an interaction between bowel function and psychological factors. The diagnosis provides a clear explanation for the symptoms and establishes a reliable basis for further treatment.

Angestellte der Klinik Notiert etwas auf einem Papier

Gastroenterology & Cardiology: Working hand in hand to reach a diagnosis

The Gastroenterology Department at the Max Grundig Clinic works closely with the Cardiology Department, as many conditions affecting the gastrointestinal tract are directly linked to cardiovascular risk factors such as high blood pressure, metabolic disorders or chronic inflammatory processes.

Through interdisciplinary collaboration, symptoms can be assessed holistically and personalised prevention and treatment plans developed – ranging from modern endoscopy to comprehensive internal medicine risk assessments.

"In my initial consultation with patients, I place particular emphasis on establishing a foundation of trust."

Prof. Dr. med. Hans Weidenbach, Chief Physician of Gastroenterology