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The best

and treatment

Department of General, Visceral and Minimally Invasive Surgery

Prof. Dr. med.

Franz Bader

Director of the Department of General, Visceral, and Minimally invasive Surgery; Surgeon, visceral surgeon, and proctologist

General, Visceral, and Minimally Invasive Surgery

  • Phone: +49 (0) 89 149 903 – 8001

Dr. med.

Regine Hahn

Surgeon, visceral surgeon, secial visceral surgeon, proctologist

General, Visceral, and Minimally Invasive Surgery

  • Mail:
  • Phone: +49 (0)89 149 903 8001
  • Fax: +49 (0)89 149 903 8005
Our colleagues from the department of general, visceral and minimally invasive surgery at ISAR Klinikum treat all diseases of the abdominal organs, such as the oesophagus and stomach, liver, gall bladder, pancreas and small and large intestines.

Our highly skilled and experienced staff work with the latest technologies. These include ultra-modern operating theatres equipped with HD technology. The use of more gentle methods, such as minimally invasive surgery, enables safe and largely pain-free treatment.

As a patient, you will enjoy our undivided attention during your stay. Having multidisciplinary consultations involving all experts who can shed light on your disease makes it easier to agree on a treatment plan and takes a load off your shoulders as a patient. Our experts will of course also be happy to provide a second or even third opinion.

The close, interdisciplinary collaboration of specialist surgeons and gastroenterologists also enables specialised diagnostics as well as a coordinated treatment from a single source. We also work closely with other departments, so you will benefit from a comprehensive range of treatment options.
Consultation hours and Contact data

Specialized nurses attend to your care and treatment at our interdisciplinary wards in order to provide a high level of service and comfort in a pleasant environment, and thus achieve your rapid recovery.

Our special consultation hours:
  • Esophagus and stomach
  • liver
  • gall bladder and pancreas
  • Consultation hours for the bowel and proctology
  • Wound consultation hours
Office hours

To make an appointment please call us or contact us by email. Our office assistants will inform you about the appropriate consultation hours or counseling.

You can reach us by phone at +49 (0) 89 149 903-8001 or by email at .

Your first place to go to:

Prof. Dr. med. Franz Bader
Dr. med. Regine Hahn
Dr. med. Celina Vollmann

  • Phone: +49 89 149 903 – 8001
  • Mail:
  • Office hours:
  • By prior arrangement

Additional specialists in the department

Prof. Dr. med. Werner Kauer