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  • Dr. Erhart and Dr. Heer holding a tablet

    Hand in hand –
    for our patients’ health

Our referral philosophy

We know that great things can only be achieved together! Which is why we place great value on collaboration – and not only in our team – also interdisciplinary collaboration! We enjoy collaborating with family doctors, pathologists, radiologists, surgeons, rheumatologists, dermatologists and ophthalmologists and always do everything possible for the health of our patients. Dr. Erhart and Dr. Heer thereby offer their extensive clinical and practice experience for the best-possible medical care and expert consultation.

Your patients are in excellent hands

The well-being of your patient is our top priority. We are your partner in the full range of gastroenterology services in Olten – from gastroscopy, colonoscopy, rectoscopy/proctoscopy, capsule endoscopy, endoscopic ultrasound, ultrasound, Fibroscan, pH testing, hydrogen breath testing, endoscopic retrograde cholangiopancreatography to hepatology. You can find detailed information on our wide range of services here.

Range of services

Modern methods

In our practice we work with modern technology and digitalised processes – to stay at the highest scientific and medical levels. New and modern premises come as standard and you’ll find the latest technical equipment in our treatment rooms, for example:

  • State-of-the-art endoscopy equipment/processors from Pentax (2022 generation)
  • State-of-the-art ultrasound from Hitachi Arrietta 850
  • State-of-the-art Fibroscan: FibroScan 530 M + 
  • State-of-the-art capsule endoscopy: ANX Robotica NaviCam capsule
  • State-of-the-art electrosurgical equipment ERBE with argon plasma VIO 3
  • State-of-the-art RDG-E pass through for safe cleaning and disinfection from Wasserburg
  • Equipment drying with the new PlasmaTYPHOON from Pentax

Our certifications 

For a strong, supportive partner!

Quality by Hospital Partners

Quality by Hospital Partners

We maintain an effective quality management system according to the current regulatory requirements and complies with the medical device regulation and the latest applicable hygiene standards. Olten Gastroenterology practice is inspected and certified by hospital partners for quality and hygiene.


Our staff are specifically certified in the reprocessing of endoscopes, in accordance with the Swiss guidelines on reprocessing flexible endoscopes SGG, SGP, SGHS and SVEP and Swissmedic specifications.

Any more questions?

Would you like to have a direct discussion with Dr. Erhart?  
Please get in touch directly at

To look at our patient forms please visit our service area. 

Service area

062 287 80 60