Dr. med. David Axelos

Prof. Dr. med. Michael Fried

Dr. med. Wojciech Kosikowski

Prof. Dr. med. Rémy Meier

Dr. med. Julia Pilz

FMH Specialists  for Gastroenterology 

FMH Specialists for General Internal Medicine

Welcome to our private practice for gastroenterology and hepatology


In our practices in Basel and Aarau, we offer a variety of specialist medical examinations and therapies for gastrointestinal complaints, including liver diseases and inflammatory bowel disease (Crohn's disease, ulcerative colitis). Our goal is the careful and best possible treatment in your personal situation. With a well trained staff we guarantee an individual patient care in a pleasant environment.

We adapt our medical infrastructure to the ongoing development, so that we can treat you with the most modern technology. Due to our constant training you will be accompanied with the latest knowledge and the highest standards.


As a so-called referral practise, we usually support you after a recommendation from your GP or a referral from a specialist. We work closely with them for each decision.


We have spent years building strong relationships with our gastroenterological and surgical colleagues in the region, surrounding hospitals and throughout Switzerland. With our excellent network, we can offer you a wide range of high-class services close to your home.

Preparation endoscopy

Endoscopy is a procedure by which we can examine and treat hollow organs such as the stomach, intestine or rectum. Our specially trained and experienced team of physicians and specialists will make the examination as pleasant as possible for you and provide you with competent and comprehensive support.

You can find an information video here.

Coronavirus: information for patients


If you have symptoms of illness (cough, sore throat, shortness of breath, fever or loss of the sense of smell or taste), please postpone the appointment.


Come to your appointment without a companion, exceptions are patients with restrictions.


Please wear a mask when entering the practice and follow the instructions given by the staff.


Whenever possible, keep a distance of 1.5 meters from other patients.


Thank you for your help.

Michelle Mmojekwu

The new blog - Vegan nutrition - a review
Michelle Mmojekwu is a longtime employee of MagenDarm Aarau and has been vegan for 3 years. In this testimonial, she explains why she decided to do this, what the impact on your daily life is and why she recommends a vegan diet.

Click here for the blog (in German)

opening hours


Monday till Friday

08.00 – 12.00 hrs

13.30 – 17.00 hrs


Appointments by arrangement.

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