Wiser about Who are we?

Sarcoidosis is a multisystem disease. That means that every organ can be affected. The average sarcoidosis patient will meet healthcare professionals from a variety of specialities. Here you can find per speciality the healthcare professionals whom are involved in the care of sarcoidosis patients.

Who are we


Diederik van de Beek, d.o.b. 1974
Diederik van de Beek

Diederik van de Beek is a neurologist specialised in neurological infectious disease and the principle investigator of the neurologic infectious diseases research group in the AMC. He studied medicine at the university of Amsterdam and finished his PhD thesis entitled “Bacterial meningitis in adults” in 2004 at the same university. After finishing his neurology training he spent a year in the Mayo Clinics, Rochester, Minnisota, USA studying neurological infections in transplant patient and experimental meningitis. Following his return to the AMC he received research grants from the Dutch organization for scientific research (NWO) and the European Research Council (ERC) to continue his meningitis research. In a translational, bench-to-bedside approach Van de Beek unravels cause and effect in neurological infectious disease ultimately aiming to develop new treatments and prevention strategies.His research primarily focuses on three areas of research including bacterial meningitis, infections in stroke patients and delirium in sepsis patients .Van de Beek has published over 150 papers in international scientific journals including the New England Journal of Medicine, the Lancet and Journal of Clinical Investigation.

Matthijs Brouwer, d.o.b. 1977
Matthijs Brouwer

Matthijs Brouwer studied medicine at the University of Amsterdam and received his medical degree in 2002. He worked as neurology resident in the Onze Lieve Vrouw Gasthuis in Amsterdam after which he started his neurology specialization in the Academic Medical Center. He finished his neurology training in 2010. During his training he started a nationwide cohort study on genetic risk factors of bacterial meningitis. In 2010 he received his PhD degree for his thesis entitled ‘bacterial meningitis in adults: clinical characteristics, risk factors and adjunctive treatment’. In 2011 Matthijs did a research fellowship in München at the Klinikum Gorsshadern (Ludwig-Maximilians Universitat) on the role of fibrinolysis in the development of cerebrovascular complications in an experimental meningitis model. In 2012 he returned to the AMC to work as a neurologist specialized in infectious and neuroimmunologic diseases. In 2012 he received a NWO Veni-grant for a research project on the pathofysiology and prevention of cerebrovascular complications in bacterial meningitis. 

Daan Fritz, d.o.b. 1988
Daan Fritz

Daan Fritz received his medical degree at the University of Amsterdam. During his medical study he already worked as a student-researcher for the research group Neuroinfections Amsterdam. During this period, he became interested in the inflammation of the nervous system. After his medical study he worked as a neurology resident in the ‘Medisch Centrum Alkmaar’. He returned to the research group in 2015 to focus his research on the disease neurosarcoidosis, a chronic granulomatous, multi-system disease. Beside investigating the genetic susceptibility for neurosarcoidosis, he will be involved in the clinical care for patients with this multi-system disease. 


Jouke Annema, d.o.b. 1969
Jouke Annema

Position: Pulmonologist, head of the endoscopy department

Medical education: LUMC Leiden

Medical specialist since: 2002

Dissertation in: 2005

Dissertation: “Transesophageal Ultrasound - guided Fine needle aspiration in the diagnosis and staging of Lung cancer and the assesment of sarcoidosis” 

Areas of focus: Transesofageal and endobronchial endoscopic ultrasound, thoracal endoscopy, lung cancer staging, transthoracal ultrasound. 

René Jonkers, d.o.b. 1957
René Jonkers

René Jonkers is a pulmonologist with a special expertise on interstitial lung disease, particularly sarcoidosis, and pulmonal infectious disease. He is the head of the outpatient clinic pulmonary disease of the AMC in Amsterdam. He studied medicine at the University of Amsterdam and he finished his PhD thesis titled “PK-PD relationships of beta-adrenoceptor mediated drug effects in man” at the same university in 1990. After finishing his residency at the pulmonary medicine department in the AMC he became a pulmonologist there. He focused on investigating the effects of various types of medication and the function of the immune system in the lung, for which he received multiple grants of the dutch 'Longfonds'. Jonkers is an active member in the interstitial lung disease section of the 'Dutch society of pulmonologists' (Nederlands Longartsenvereniging, NVALT) and was involved in establishing a research agenda for the direction of research for interstitial lung disease in the Netherlands. Furthermore, he is involved in healthcare for patients with interstitial lung disease, together with colleagues in the VUmc and in a collaboration with other hospitals in the area of North-Holland and the 'IJsselmeer polders'. Additionally, he has contacts with centers for interstitial lung disease outside the netherlands, for example the University of Freiburg, to investigate the genetic risk factors involved in causing sarcoidosis.

Peter Bonta, d.o.b. 1977
Peter Bonta

Function: Pulmonologist

Medical education: AMC Amsterdam

Medical specialist since: 2013

Dissertation in: 2007

Name dissertation: “NR4A nuclear recpetors in atherosclerosis” 

Areas of focus: Intervention lung diseases: thoracal endoscopy and endosonography; interstitial lung disease; chronic trombo-embolic pulmonal hypertension.

Extra positions:  committee member 'Noord-Hollands pulmonaal genootschap', committee member 'Emil Starkensteijn Stichting'


Sander Tas, d.o.b. 2016
Sander Tas

Dr. Tas is a clinical immunologist and rheumatologist and he sees a lot of patients suspected of or diagnosed with various inflammatory multisystem disorders, like sarcoidosis. Dr. Tas is a translational scientist with experience in both basic and clinical translational research. He is one of the AMC Principal Investigators focussing on the molecular regulation of inflammation, in particular the role of NF-κB signaling and angiogenesis in immune-mediated inflammatory diseases. Furthermore, he is program leader “inflammatory diseases” of the Amsterdam Infection & Immunity Institute (AMC/VUmc). Dr. Tas also initiated a clinical research project (“RUBRIC”) that aims to ensure optimal (safety, efficacy, medical knowledge, cost effectiveness) medical use of biologics in the treatment of rare, severe and refractory immune-mediated inflammatory diseases. Next to his clinical and research activities, Dr. Tas is quality committee member of the Dutch Association of Rheumatologists and member of the committee on prescription drugs of the Dutch Federation of Medical Specialists, and as such he is involved in various issues regarding targeted therapies, including the introduction of biosimilar biologics in the Netherlands and viewpoints on switching. 


Menno de Rie, d.o.b. 2017
Menno de Rie

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Markus Starink, d.o.b. 2017
Markus Starink

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