Mischa Feigel, MD
Board-certified surgeon (FMH)
Specialist in visceral surgery
Professional Qualifications
- Board-certified surgeon (FMH), 1994
- Advanced subspecialty certification (FMH) in visceral surgery, 2003
- Long-standing specialization in minimally invasive visceral surgery, with a particular focus on reflux and bariatric surgery
Areas of Expertise
- Conservative management of reflux disease
- Function-preserving anti-reflux surgery
- Revision and redo procedures
Reflux Disease – My Motivation
Reflux disease has been a central focus of my surgical work since the beginning of my career. With the introduction of proton pump inhibitors (PPIs), surgical treatment moved into the background for many years. Acid suppression proved effective, and typical symptoms could often be significantly alleviated.
However, after discontinuation of medication, symptoms frequently recur, often requiring long-term therapy.
The underlying cause of reflux disease is mechanical and cannot be corrected by medication. Following surgical treatment, long-term medication is generally no longer necessary.
What motivates me most is seeing patients regain the ability to eat and drink without symptoms, lie flat comfortably, discontinue acid-suppressing medication, and experience a meaningful restoration of quality of life.
At the same time, not every case of reflux disease requires surgery. A careful, individualized, and differentiated assessment is essential.
For me, medicine means applying available options with experience, judgment, and responsibility. Every treatment—conservative, medical, or surgical—has its place when used appropriately.
My goal is to work with my patients to develop a solution that is medically sound, functionally effective, and allows long-term freedom from symptoms—nothing more, nothing less.
Professional Qualifications and Areas of Expertise
Areas of Expertise
- Conservative management of reflux disease
- Function-preserving anti-reflux surgery
- Revision and redo procedures
Professional Career
- 2026 – Co-founder, Center for Bariatric Surgery, Cantonal Hospital Glarus
- 2016 – Founder and Director, Zurich Competence Center for Reflux Surgery
- 2009 – Founder, specialized center for visceral and bariatric surgery, Zurich
- 1996 – Founder, center for minimally invasive surgery, Zurich
Professional Qualifications
- Board-certified surgeon (FMH), 1994
- Advanced subspecialty certification (FMH) in visceral surgery, 2003
- Long-standing specialization in minimally invasive visceral surgery, with a particular focus on reflux and bariatric surgery
- Advanced subspecialty certification (FMH) in gerneral and trauma surgery, 2004
- Certificate in abdominal ultrasound (SGUM), 2005
- Certification (SIWF) Radiation Protection in Surgery (SGC)
- Certification (SIWF) Practice Laboratory Medicine (KHM)
International Training
- Fellowship in minimally invasive visceral surgery, Dijon
- Training in bariatric surgery, Padua
- Course of Bariatric Surgery, European School of Laparoscopic Surgery, Brussels
Memberships
- Swiss Society of Surgery (SCC)
- Swiss Society for Visceral Surgery (SGVC)
- Swiss Multidisciplinary Obesity Society (SMOB)
- International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
- European Association for Endoscopic Surgery (EAES)
Scientific Activity
- Regular lectures on reflux surgery as part of continuing medical education programs
- Author of numerous scientific and educational publications on reflux disease and functionpreserving reflux surgery
- Contribution to and scientific supervision of a doctoral thesis involving a retrospective comparative analysis of proximal versus distal gastric bypass procedures, including an own case series of distal gastric bypass procedures (n=200), conducted at Charité — University Hospital Berlin (doctoral degree awarded in 2026)
Partners and Collaboration
High-quality care requires close interdisciplinary collaboration.
Gastroenterology
Preoperative evaluation in collaboration with specialized gastroenterologists
Collaboration includes, among others:
- GastroCenter Hirslanden, Zurich
- Additional specialized physicians throughout Switzerland
Radiology
For radiologic evaluation, particularly contrast-enhanced studies of the esophagus and stomach, we maintain close collaboration with:
- RIMED Radiology Institute, Zurich
Surgical Team
All procedures are performed with my specialized surgical team, with whom I have worked closely for many years.
- Georg Wille, MD — Board-certified surgeon (FMH), EBSQ in endocrine surgery
- Peter Nussbaumer, MD — Board-certified surgeon (FMH), vascular specialist
- Daniel Gössi, MD – Board-certified surgeon (FMH), specialist in visceral surgery (FMH)
Nutritional Counseling
Structured nutritional counseling is an integral component of the treatment concept.
- Evelyne Gaetzi, BSc – OVIVA Nutrition Counseling
Surgical Locations
Procedures are performed at the following institutions:
- See-Spital Horgen (ZH)
- Seechirurgie Thalwil (ZH)
- Cantonal Hospital Glarus (GL)
- AMEOS Hospital Einsiedeln (SZ)
Additional Information
Over 30 publications with a focus on minimally invasive reflux surgery, bariatric surgery, hernia surgery, colorectal surgery, and proctologic surgery
Regular lectures, including continuing medical education for physicians, presentations at ETH Zurich, and public lectures
Television appearances covering endoscopic inguinal hernia repair, laparoscopic reflux and colorectal surgery, and bariatric surgery
May 2014: Laparoscopic sleeve gastrectomy performed in the patient with the highest documented body mass index in Switzerland (98 kg/m 2)
Legal Notice
This website provides a clear and accessible overview of gastroesophageal reflux disease. The content has been prepared with the greatest care; however, it does not claim to be complete. Medical knowledge, as well as diagnostic and therapeutic options, are subject to continuous development and change. We make every effort to review and update the content of this website regularly as needed.
Medical conditions are inherently individual and complex. The information provided does not replace a personal medical consultation. A well-founded assessment is only possible through direct consultation and appropriate diagnostic evaluation.
Do you have any questions? Contact us.
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