Auckland gastroenterologist & interventional endoscopist
Specialist care for digestive and endoscopy problems
Dr Marius van Rijnsoever provides specialist assessment and advanced endoscopy for reflux, abdominal pain, bowel symptoms, pancreaticobiliary disease and bowel cancer prevention.
Consultation, investigation and treatment planning in one clearly explained pathway.
Integrated care
Assessment, endoscopy and follow-up are planned together, so the next step is clear before you leave.
Clear explanations
Medical information is translated into plain language, with practical advice for symptoms, results and surveillance.
Advanced endoscopy
Expertise in diagnostic and therapeutic procedures including colonoscopy, EMR, EUS, ERCP and pancreaticobiliary endoscopy.
What happens during a colonoscopy?
A brief explanation for patients who are preparing for colonoscopy.
Patient video
Colonoscopy, explained simply
This short video explains what a colonoscopy is and why it is used.
For many people the main anxiety is not the procedure itself, but not knowing what to expect. The video was made to help patients feel prepared for this safe and simple procedure.
Specialist care
Careful assessment. High-quality endoscopy. Clear follow-up.
Gut symptoms are often worrying because they are hard to interpret. The aim is to identify what matters, avoid unnecessary tests, and give you a plan that is practical and medically sound.
Services
Specialist gastroenterology and advanced endoscopy
Clear assessment, careful endoscopy and practical treatment for digestive symptoms and more complex endoscopic problems.
Consultation
Personalised specialist consultation for digestive symptoms, diagnosis, treatment planning and second opinions.
Endoscopy
Gastroscopy and colonoscopy using modern endoscopic equipment for accurate diagnosis and minimally invasive treatment.
Bowel cancer prevention
Screening, polyp detection and surveillance to help prevent bowel cancer and guide the right follow-up.
Reflux and swallowing
Assessment and treatment of reflux, heartburn, oesophageal irritation and swallowing difficulties.
Endoscopic ultrasound
High-resolution assessment of the pancreas, bile duct and upper digestive tract with endoscopic ultrasound.
Therapeutic endoscopy
Advanced endoscopic treatment including polyp removal and other minimally invasive therapeutic procedures.
About Dr Marius
Specialist opinion without losing the human conversation
Dr Marius van Rijnsoever is a gastroenterologist and interventional endoscopist in Auckland. His practice combines careful clinical assessment with high-quality diagnostic and therapeutic endoscopy.
Patients are given a clear explanation of the likely causes, the role of any tests, and what the results mean for treatment or surveillance.
Holistic approach the gut
When routine tests are not enough
Some digestive problems need more than a standard consultation. They require time for a throrough history as often testing can lead to more confusion due to false negatives or false positive tests,
Patient pathway
Organised, safe and easy to understand
From the first referral through to results and follow-up, the goal is to make each step clear and clinically useful.
Referral or enquiry
Clinical details are reviewed so the right appointment or procedure can be arranged.
Specialist review
The consultation focuses on the most likely causes and the tests that will genuinely change management.
Procedure or plan
Results are explained in plain language, with a clear plan for treatment, surveillance or GP follow-up.
Appointments
Need a gastroenterology opinion?
Send through your referral or enquiry and the team will advise the most appropriate next step.
Contact the practice