The Executive Board

The Executive Board is made up of Ernst Kuipers (chair), Hans van Leeuwen (deputy chair and dean), Joke Boonstra (member) and Paul Boomkamp (member). More detailed information follows below.

Executive Board

Ernst Kuipers

Chairman of the Executive Board.

Brief introduction

Ernst Kuipers trained in gastroenterology and hepatology. He was appointed as a member of the Executive Board on 1 December 2012 and has chaired the Board since 15 March 2013. He was educated in the Netherlands (in Groningen, Enschede, Deventer and Amsterdam) and, after obtaining his PhD, spent several years working in Nashville, USA.

He was appointed as a Professor of Gastroenterology and Hepatology and head of our Department of Gastroenterology and Hepatology in 2000, and in 2006 also became head of the Department of Internal Medicine. Among many other things, he was the driving force behind the launch of the national bowel cancer screening programme.

The combination of his academic interests and his managerial experience in a wide range of international organisations and committees has given him a broad outlook on both national and international issues, as indeed he needs in order to perform his duties as chair of the Board.

What he has to say

“The Erasmus MC is the biggest and most diverse university medical centre in the Netherlands. It’s a tremendous privilege to chair this fantastic organisation.

We are a world leader in research, our teaching programmes are rated extremely highly and our patient care services are geared towards patients with highly complex conditions who need highly specialist, innovative medical care. Apart from Dutch patients, we also treat non-resident patients who require this form of complex medical care.

This latter aspect is important, as it enables us to continue to offer high-quality, affordable healthcare to both our Dutch and our non-resident patients. However, we can do this only by working together in partnership with our partners in the Rotterdam region. Strengthening these partnerships and building up networks is what I hope to achieve as chair.”



Erasmus MC Cancer Institute, Brain & Senses, Erasmus MC Sophia Children’s Hospital, Accident & Emergency, Perioperative and Intensive care, Thorax

Responsible for:

Outside interests:

Contact details

You can reach Ernst Kuiper’s secretariat at (010) 703 46 81 or by email.

Paul Boomkamp

Member of the Executive Board

Brief introduction

Details to follow

Contact details

You can reach Paul Boomkamp’s office by calling + 31 10 703 27 60 or by sending an email.


Hans van Leeuwen

Dean and deputy chair and of the Executive Board

Brief introduction

Hans van Leeuwen studied biology at Vrije Universiteit Amsterdam, obtaining his doctorate from Leiden University in 1988. He is a Professor of Ossification with a special interest in regenerative medicine and the role played by the skeleton in relation to the immune system and the metastasis of cancer cells.

Hans van Leeuwen has been a faculty member and a researcher at our Department of Internal Medicine since 1988. He was the lead researcher in a research programme centring on ossification and was the Director of Laboratories at the Department of Internal Medicine. He was made a Pro-Dean and Director of Education and Research in 2015. He was appointed Dean and a member of the Executive Board on 1 September 2017.

What he has to say 

“We are living at a time of major change in the healthcare industry. It’s difficult to underestimate the impact of technology, big data and artificial intelligence both on scientific research and on our teaching activities. Focus, innovation and synergy are the key words here, and we are particularly interested in the development of talented individuals who are going to shape the future for us. I believe that the Erasmus MC should not simply be ready to deal with these massive changes, but should actually be closely involved in the development and adoption of new technologies. In doing so, it’s absolutely vital not to lose track of the human and socio-economic dimension.”

Contact details

You can reach Hans van Leeuwen’s office by calling +31 10 703 50 60 or by sending an email.

Joke Boonstra

Member of the Executive Board.

Brief introduction

Joke Boonstra has been a member of the Executive Board of the Erasmus MC since September 2017. From 2013 to 2017, she sat on the Executive Board of the IJsselland Hospital in Capelle aan den IJssel, where she had previously been employed as a clinical chemist, Director of Laboratories and Healthcare Director.

After taking a degree in medical biology at the University of Amsterdam and obtaining her PhD from Leiden University with a dissertation in the field of transplantation immunology, she trained as a clinical chemist at the Leiden University MC. Joke was appointed to the staff of our Department of Clinical Chemistry in 2002, and acted as the deputy head of the department until 2010. She has also attended courses at the INSEAD Business School in Fontainbleau, France, and the IMD Business School in Lausanne, Switzerland.

What she has to say

“Our work here at the Erasmus MC is tremendously important. Regardless of the department in which people work and the type of job they perform, everyone is a member of the same team seeking to fulfil our mission of achieving a healthy population and pursuing excellence in healthcare through research and teaching. We are not constrained by a lack of ambition. Not only do we work in the heart of a great city, we feel a huge sense of responsibility in terms of the role we perform in society – both in the local region and much further afield. This feeling is a tremendous source of energy for me. The job we have to perform is both highly complex and extremely rewarding, and that means that, in my work as a member of the Executive Board, I encounter exciting new challenges every day.”

Contact details

You can reach Joke Boonstra’s office by calling +31 10 703 34 20 or by sending an email.