Gastroenterology in Bern: Gastrointestinal Specialist and PD Dr Netzer

PD Dr Peter Netzer
CEO and Owner
Specialist in Gastroenterology
Bern, Switzerland

GastroZentrum Netzer AG - Logo

Treatment Focus

Diagnosis and Treatment of:

  • Gastric diseases
  • Bowel diseases
  • Diseases of the gall bladder and liver
  • Oesophageal diseases
  • Pancreatic diseases

Medical Range

Range of Diagnostic and Therapeutic Services

Oesophageal Gastro-Duodenoscopy (Gastroscopy)

  • Diagnostic clarification involving a biopsy: e.g. dyspeptic complaints, reflux/ulcerative diseases, Helicobacter, celiac disease, tumour search, clarification of dysphagia, vitamin B12 deficiency, etc.
  • Resection of premalignant and early malignant processes by means of snare resection, endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), full-thickness resection (FTR, using an FTRD – full thickness resection device), or Barrett's mucosal resection
  • Diagnosis and resection of submucosal processes, e.g. GIST, leiomyoma, ectopic pancreatic tissue, neuroendocrine tumours (NET), large lipomas
  • Radiofrequency ablation in the oesophagus and stomach: Barrett's mucosa, mucosal bleeding, etc. (with BarrX system)
  • Bougienage and dilatation of tumour stenoses, strictures, webs, anastomoses, pyloric stenoses, eosinophilic oesophagitis.
  • Treatment of achalasia
  • Stent implantation in the oesophagus, stomach and duodenum
  • Treatment of benign and malignant tumour stenoses, fistulas, leaks, anastomotic stenoses or insufficiency

Enteroscopy (Endoscopy of the Small Intestine)

  • Capsule endoscopy
  • Push and single balloon enteroscopy

Colonoscopy and Rectoscopy (Endoscopy of the Colon and Rectum)

  • Diagnostic clarification involving biopsy in cases of diarrhoea, bleeding, colic, cramps
  • Cancer screening in symptom-free patients
  • Resection of polyps and early cancers by means of a jumbo forceps or snare resection, endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), full-thickness resection (FTR)
  • Diagnosis and resection of submucosal processes: GIST, leiomyoma, ectopic pancreatic tissue, neuroendocrine tumours (NET), large lipomas.
  • Treatment of radiation proctitis
  • Bougienage and dilation of stenoses
  • Stent implantation
  • Endoscopic treatment of diverticula

ERCP and Cholangioscopy

  • ERCP = endoscopic retrograde cholangiopancreatography
  • Cholangiography = direct examination of the biliary tract (spyglass system)
  • Papillotomy

Endosonography (Endoscopic Ultrasound)

  • Diagnostic evaluation of processes in the oesophagus, stomach, duodenum, pancreas, biliary tract, gall bladder, liver, anal sphincter, rectum, distal colon, and adjacent organs/structures
  • Endosonographic interventions
  • Fine needle aspiration of tumours, cysts, lymph nodes, etc.
  • Drainage and removal of pancreatic cysts, drainage of the gall bladder and liver abscesses

Abdominal Sonography (Diagnostic Ultrasound Examination of the Abdomen)

Diagnostic Clarification and Treatment of Chronic Inflammatory Bowel Diseases

  • Crohn's disease
  • Ulcerative colitis
  • Microscopic colitis

About PD Dr Peter Netzer

PD Dr Peter Netzer is an experienced gastroenterology specialist and owner of the GastroZentrum at the Lindenhof Hospital in Bern. 

As a gastrointestinal expert, he diagnoses and treats diseases of the gastrointestinal tract with great care and expertise. Disorders of the oesophagus, gall bladder, liver, and pancreas also fall within his spectrum of treatments. In cancers of the digestive system, Dr Netzer works closely with professionals in oncology, radiotherapy, and abdominal surgery at an interdisciplinary basis. In addition to his professional expertise, Dr Peter Netzer also stands out due to his caring nature towards his patients. Compassion and understanding of their illnesses as well as the desire to achieve best possible treatment outcomes are defining elements of his way to handling patients entrusted to his care.

Diagnosis and Therapy from a Single Source: the GastroZentrum at the Lindenhof Hospital in Bern

Thanks to the available equipment at the GastroZentrum including modern video endoscopes, Dr Netzer is able to detect and diagnose even smallest pathological changes of the oesophagus, stomach or colon, plus to initiate therapy. By means of imaging techniques or in case of strict indications via biopsy, Dr Netzer clarifies and treats diseases of liver, gall bladder or pancreas.  

Gastroscopy (Oesophageal Gastro-Duodenoscopy)

During the process of gastroscopy, oesophagus, stomach or upper part of the duodenum can be examined by applying a flexible tube probe with an integrated camera. At the same time, it is possible to remove secretion and tissue samples or even perform minor surgical procedures. A gastroscopy is implemented for conditions such as reflux or ulcerative diseases, celiac disease, or even - among other things - to detect tumours. By implementing various resection procedures, any abnormal processes or tissue alterations can be removed during gastroscopy.

In case of mucosal lesions in the lower region of the oesophagus (Barrett's mucosa) or mucosal bleedings, the affected tissue can be broken down or destroyed by means of the so-called radiofrequency ablation (supply of high heat). With the help of dilatations or stent inserts, Dr Netzer and his team also treat complaints caused by tumour stenosis (tumour evoked constriction) or achalasia (slackening of the lower oesophageal muscle) during gastroscopy.

Endoscopy of the Small Intestine (Enteroscopy)

The most common reasons for an endoscopy of the small intestine are bleedings or suspected inflammatory changes or tumours in the small intestine. By using various techniques (e.g., double balloon endoscopy), the small intestine can be threaded under sedation in order to be able to observe several metres of the organ. Alternatively, examinations by video capsule (capsule endoscopy) are possible.

Colonoscopy and Rectoscopy (Endoscopy of the Colon and Rectum)

In cases of persistent diarrhoea, cramps, colic or recurring blood in the stool, it is prudent to undergo diagnostic clarification by means of a colonoscopy. A colonoscopy is also essential for cancer screening. If polyps, carcinomas at early stages or submucosal processes (tissue changes beneath muscles) are detected during investigation of individual intestinal segments, these parts can promptly be removed - e.g. by means of a jumbo forceps or snare resection, an endoscopic mucosal resection (EMR), an endoscopic submucosal resection (ESD) or a full-wall resection (FTR).

Dr Netzer and his team at the GastroZentrum in Bern have extensive experience and routine with the resection methods mentioned above. Diverticula (protrusions of the intestinal wall), stenoses (constrictions) or radiation proctitis (inflammation of the rectum following radiotherapy) can also be simultaneously diagnosed and treated during a colonoscopy.

Experts in ERCP and Cholangioscopy at the GastroZentrum in Bern

ERCP (endoscopic retrograde cholangiopancreatography) is a radiological examination approach. During this process, gall bladder, bile ducts, and ducts of the pancreas can be examined. Utilizing an endoscope, the cavities are filled with an X-ray contrast agent and illuminated. Even small surgical interventions are possible within the scope of ERCP. For example, gallstones can be captured endoscopically by using small forceps and little cups to be then removed from the bile ducts (papillotomy). In cholangiography - a direct examination of the biliary tract, the contrast medium is injected either through the arm vein or by puncturing the bile ducts. 

Endosonography: Ultrasound from the Inside

Dr Netzer has state-of-the-art ultrasound equipment available at the GastroZentrum in Bern. These appliances are used, for example, during the special examination method of endoscopic ultrasonography (EUS). Here, the ultrasound head does not slide above the outside of the skin, but is inserted into the body instead - directly into or near the organs to be examined. With this conduct, Dr Netzer and his team can reliably diagnose complaints of stomach, oesophagus, pancreas, and gall bladder, as well as the rest of the digestive system. Additionally, endoscopic ultrasonography is frequently used in fine needle aspirations of tumours, cysts, lymph nodes or drainages - for example in case of liver abscesses. The GastroZentrum offers state-of-the-art ultrasound equipment of the latest generation for this purpose.

Diagnostic Clarification and Treatment of Chronic Inflammatory Bowel Diseases      

Illnesses such as Crohn's disease, ulcerative colitis or microscopic colitis represent a life-long burden for those affected. These chronic afflictions are often associated with severe diarrhoea, weight loss and weakness. These problems can onset not only in adults, but already during childhood or adolescence. This enhances the importance of a precise diagnosis and individualised treatment. Dr Netzer cares for affected patients at the Lindenhof Hospital in Bern both on an outpatient and inpatient basis. The goal is always the restoration or best possible preservation of quality of life – despite the chronic intestinal condition.

Further information can be acquired on the PD Dr Peter Netzer's website.

Curriculum Vitae

1985 Awarded with the rank of lieutenant (San Of)
1985 Abdominal surgery, Inselspital Bern, Prof. B. Berchtold
1986 Locum tenens physician at a private practice
1986 – 1987 Medical curriculum, Inselspital Bern, Prof. T. Hess
1987 – 1988 Abdominal surgery curriculum, Inselspital Bern, Prof. L. Blumgart
1988 – 1989 Paediatrics curriculum, Inselspital Bern, Prof. E. Gugler
1989 Gynaecology curriculum, Langenthal Hospital, Dr H.P. Vogt
1990 Doctorate at the University of Bern under the direction of Prof. H. Rösler Topic: hyperthyroidism and thyroid cancer
1990 Medicine and rheumatology curriculum, Inselspital Bern, Prof. N. Gerber
1990 – 1991 Medical curriculum, Zurich Höhenklinik Wald, Dr O. Brändli
1991 – 1992 Medical curriculum, Interlaken Hospital, PD Dr E. Wegmüller
1992 FMH title of the Swiss Medical Association: Specialist in internal medicine
1992 Senior Physician, Internal Medicine, Wädenswil Hospital, Dr P. Möhr
1993 – 1994 Gastroenterology, St Gallen Cantonal Hospital, Dr B. Hammer
1994 – 1995 Senior Physician, Gastroenterology and Internal Medicine C, St Gallen Cantonal Hospital, Dr B. Hammer / Prof. H.J. Senn
1995 – 1996 Department of Gastroenterology, Inselspital Bern, Prof. F. Halter
1995 – 1996 Postgraduate curriculum: Bio-Statistics, Institute for Social and Preventive Medicine, University of Bern
1996 FMH title of the Swiss Medical Association: Gastroenterology
1996 Senior Physician, Internal Medicine, Inselspital Bern, Prof. P. Straub
1996 – 1997 Senior Physician, Gastroenterology, Inselspital Bern, Prof. F. Halter
1997 Postgraduate curriculum: Statistical Ideas in Medical Projects, Prof. J. Hüsler
1997 – 1999 Research Dept., University of Irvine and VA Medical Center Long Beach, USA, Prof. A. Tarnawski
1999 – 2000 Senior Physician, Gastroenterology, Inselspital Bern, Prof. B. Göke
2003 Habilitation: Internal Medicine, specialising in Gastroenterology
2003 Postgraduate studies: Master of Medical Management FH
2004 Postgraduate studies: Executive Master of Business Administration
2000 – 2005 Deputy Chief Physician and Head of Endoscopy, Gastroenterology, Inselspital Bern, Prof. U. Scheurer
2005 Further training: Expertise in dose-intensive X-Rays (KMH)
2006 – present Founder and CEO of GastroZentrum Netzer AG at Lindenhof Hospital, Bern
2007 Further training: Practice laboratory work (KMH)
2010 Further training: Specialist diploma in Endoscopic Retrograde Cholangiopancreatography, ERCP (SGG)
2011 Further training: Expertise in dose-intensive examinations and therapeutic interventions in gastroenterology
2017 Further training: Applied Endoscopic Ultrasound course in Montreal, Canada (2 weeks)

Medical Team

  • Dr. med. Alexander Sendensky Dr Alexander Sendensky
    Leading Doctor

  • Dr. med. Martin Wilhelmi Dr Martin Wilhelmi
    Leading Doctor


Meals in the recovery room with medical consultation and post-treatment care.


Bern Railway Station 1.5 km
Bern-Belp Airport 11 km
Basel Airport 103 km
Zurich Airport 125 km
Geneva Airport 152 km

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PD Dr Peter Netzer
CEO and Owner

GastroZentrum Netzer AG
Lindenhof Hospital – Sahlihaus
Bremgartenstr. 115, CH-3012 Bern

T: +41 31 511 45 79
F: +41 31 300 44 45


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