Born in the Netherlands, I initially completed my degrees as a cancer researcher. I then moved to Australia, where I trained as a gastroenterologist. I moved my wife and two children to New Zealand to perform advanced interventional endoscopy. This work is very satisfying to me as I can have a big impact on the heath outcomes of my patients.

I am passionate about education outside my work as well. For the last 3 years I have run the "spaceteddy" project at Forrest Hill primary school. By sending a teddy bear into near space, the children learn about science, environment as well as computer programming.





5 out of 5 stars
posted 3 weeks ago

Dr. Van Rijnsoever is an excellent Gastroenterologist and Highly recommended. He was very helpful and provided me all with all the information I needed as well referrals, the procedure and reports for immigration. I would definitely refer anyone to him. 5 STARS!

5 out of 5 stars
posted 11 months ago

Dr Marius. I am writing to express my appreciation for all that Dr Marius has been able to do so i have been able to avoid major surgery. I have adenocarcinoma,(cancer in the duodenum). I was offered an extremely invasive operation called Whipple. This involves extensive cutting and rejoining of the liver pancreas and gall bladder with all its aftermath and infection risks. I chose not to have this as i preferred to have quality of life rather than longevity. Sadly i have been up close to...

5 out of 5 stars
posted 3 months ago

Dr Marius was very attentive and responded fully to my description of my state of health (physically and psychologically/emotionally). He was able to provide me with relevant information to assist me in moving forward, and made referrals to ensure that anything needing to be checked could be checked. Matthew Connolly

5 out of 5 stars
posted a month ago

I suffer from Eosinophilic esophagitis, & Marius has been the most qualified surgeon that I have ever had doing the procedure of GI endoscopy. He is very informative. About the only person I would trust to do a Endoscopy procedure correctly & safely. I very much recommend, hence 5 stars.

5 out of 5 stars
posted 10 months ago

Marius was the first person to take my condition seriously, and do everything in his power to help me. Even when my issues went outside of his scope of work. He is empathetic and diligent, and has been an heavy weight in my corner and my ace up my sleeve. I’m so grateful for him, and would highly recommend.