Who are we
Personal and small-scale in Amsterdam Center - East
We are Martijn van der Wal, Rosa Vogel and Noor Heldoorn, all of whom have been GPs since 2016. We are committed to providing accessible, personalised and readily available GP care.
We work without a doctors assistant, which means you are always in direct contact with one of the GPs. You choose which one.
Our Team
Our team of passionate professionals

Martijn van der Wal
General practitioner
69908626001
Monday, Thursday and Friday
After studying medicine in Utrecht, I moved to Amsterdam to work in the burn center in Beverwijk. After 5 years of burn care and science, I obtained my PhD at the VU Medical Center and started my GP training. As a general practitioner, I have worked for years in various practices in Amsterdam, but also in other parts of the Netherlands. As the son of a country doctor, I wanted to settle with my family in the East of the Netherlands, where I grew up. An accessible atmosphere with personal contact with the patients is what attracted me there. What attracted me so much to the East of the country, I found in my own living environment; the East of Amsterdam. I decided to settle here. Oostenburg combines old with new, the urbanity of Amsterdam with the small-scale of an island, with a fresh crop of people and activity. My aim is to contribute to safe and trusted care for the people in Oostenburg. I would like to welcome everyone in the vicinity of Oostenburg!

Rosa Vogel
General practitioner
19915171701
Monday (online), Tuesday and Wednesday
After studying medicine in Leiden, I worked for a year as a doctor in surgery in The Hague. I then studied general medicine at the VU in Amsterdam. I then emigrated to Aruba, where I enjoyed having my own practice as a general practitioner for almost 6 years. Now that I am back in the Netherlands, I enjoy working as a general practitioner in the practice of my old fellow student Martijn. Especially since he has a completely new approach to the general practitioner profession. The general practitioner profession is versatile and there are so many more options than just regular consultations. That is why I chose Martijn's practice! I work at the practice on Wednesdays.

Noor Heldoorn
General practitioner
19913727701
Thursday (online)
After studying medicine at the University of Amsterdam, I gained experience in pediatrics and child and adolescent psychiatry. I then went on to study general practice at VU University Amsterdam. What I enjoy most about the profession is the diversity of patients and clinical pictures. From minor ailments to serious illnesses, psychiatry interspersed with small surgery. It never gets boring. My areas of focus are pediatrics, child and adolescent psychiatry, but also medical procedures such as the insertion of IUDs or implanons.

Ingrid van Aert
Practice assistent for mental health care
Monday, Tuesday and Wednesday (online)
I have been working as a mental health nurse practitioner in various general practices for over ten years. Prior to that, I gained ten years of experience in specialist mental health care, where I worked as a psychiatric nurse in various admission and treatment wards. A few years ago, I also completed my training as a systemic therapist. Since 2025, I have been a happy member of the Oostenburg team, where I support people who are dealing with mental or emotional issues. Everyone goes through difficult periods or temporary setbacks from time to time. I would be happy to work with you to determine what you need to move forward, in a way that suits your personal situation, life story and strengths. I offer accessible digital consultations, where connection and trust are paramount. You can easily start a conversation from your own living room, a quiet place at work or even a nice spot outside. I work from home in the south of Brabant, but sometimes also from abroad, in keeping with my love of travelling and discovering other cultures. Feel welcome to get in touch if I can be of service to you!

Nina Saxena
Administrative helper
Works from home
I am a fifth-year medical student at Erasmus University and am currently doing my residency. In addition to my studies, I assist Martijn with various administrative tasks within the practice and am involved in coordinating chronic care. This fits in perfectly with my ambition to become a general practitioner and offers me the opportunity to gain valuable experience in primary care alongside my residency.

Kimberley Zwaan
Physician assistant (in training)
Tuesday, Thursday and Friday
My name is Kimberley and, from September 2026, I will be joining the team as a trainee Physician Assistant at the practice. I have worked for over 6.5 years as a physiotherapist in primary care, as well as at the rehabilitation medicine outpatient clinic. Through my experience with orthopaedic conditions, chronic pain, and breathing and relaxation issues, I have learnt to look at both the body and the person as a whole. I am keen to bring this broad perspective to this new role. What drives me is building a genuine connection with patients and providing care that aligns with what matters to them. I believe that good care starts with attention: listening, asking probing questions and working together to identify what someone needs. As a Physician Assistant, I want to further broaden my knowledge so that I can make an even greater contribution to both the practice and the people who visit it. I also believe it is important that everyone feels at ease with me and feels heard. For me, a good conversation and paying attention to what is really on someone’s mind form the basis of good care. Outside of work, I also enjoy keeping active: I work out regularly at the gym and love going for a run. This not only keeps me fit, but also gives me energy that I’m happy to bring with me to my work at the practice. I look forward to meeting you all at the practice!

Roy Daanen
Physician assistant (in training)
Wednesday, Thursday and Friday
Before I began my training as a physician assistant, I spent six years working as a sports physiotherapist at SMC Fysiomed, which I thoroughly enjoyed. During those years, I learnt how important it is to listen to someone and work together to identify what they need to be able to carry on despite pain when moving — an approach that I am now keen to bring to general practice. The move to the PA programme felt like a logical next step for me: I wanted to learn more and broaden my perspective beyond just the musculoskeletal system, so I could support patients in more areas. At Oostenburg GP Practice, I’ve found the personalised approach that suits this. Here, I’m learning under the supervision of the GPs and helping out with consultations and day-to-day care at the practice. I look forward to meeting you at the practice!
FAQ
These frequently asked questions have been compiled based on questions we receive frequently. By providing the answers here, we save you the trouble of contacting us and we GPs have fewer interruptions in our work with patients. If you cannot find the answer to your question, you can ask the practice.
Do I need to make an appointment with the doctor?
How can I make an appointment?
How do I make an appointment at the practice?
Practical Information
Consultation of patients with a Dutch health insurance are directly declared at the health insurance.
Are you in need for medical care which can not wait untill the next working day? Contact the GP Emergency post through 088-0030600.
Huisartsenpraktijk Oostenburg
- Tonia Stieltjesplein 88
- 1018 CJ Amsterdam
- info@huisartsenpraktijkoostenburg.nl
Opening hours
| Monday | 08:00 to 17:00 |
| Tuesday | 08:00 to 17:00 |
| Wednesday | 08:00 to 17:00 |
| Thursday | 08:00 to 17:00 |
| Friday | 08:00 to 17:00 |
| Saturday | Closed |
| Sunday | Closed |
