Specialized medical Center Medimarien





- Dr. DE COSTER Olivier - Dr. PIRENNE Philippe - Dr. PHLIPS Thomas - Dr. DETHY Martine - 


 - Dr. DE COSTER Olivier - 

He obtained his degree in Medical Science with honours at the UCL in 1986.

In 1991 he was acknowledged as Internal Medical Science Specialist and in 1993 as Cardiology Specialist at the UCL.

In 2001, he acquired an Academic Certificate in Medical Management.

From 1992 to 1996, he worked as Cardiologist in the Sint-Jan Clinic.

In 1996, he was appointed Head of the Cardiology department of the Sint-Etienne clinic. Along with the cardiologists of Sint-Anna – Sint-Remigius, he established the UCVI (Unité Cardiovasculaire et Interventionnelle- Cardiovascular and Interventional Unit).


From 1998 to 2003 he was a member of the Management Board of the Sint-Anna – Sint-Remigius, Sint-Etienne hospitals and of the VZW Sint-Vincent.

From 1999 to 2000 he was appointed as Medical Director in Sint-Etienne.

1999 to 2007: he was head of Clinique St Etienne's Internal Medicine Department.

2006: as a result of his training as an Internist and his conviction that medicine should not be fenced off into different areas, he sought to promote a holistic approach, where so-called "alternative" medicine could fit in. Hence his decision to create MEDIMARIEN.

2007: the disappearance of Clinique St Etienne also meant the demise of his social and pluricultural aims.

He then focused on developing Medimarien, whose premises are continue to expand while its workforce grows in strength.

2008: he made a return to the university environment, working as a consultant 2 half days a week for the Cliniques Universitaires St Luc, where he is involved in the cardiac cartherisation catheterization unit.

This enables him to continue examining patients GPs refer to him, while keeping up to date with the latest developments in Cardiology and Internal Medecine.



- Dr. PIRENNE Philippe - 

Graduated from UCL in June 2000 with "great distinction"  Philippe strengthens the cardiology team of Medimarien Medical Center since 2010.

His career reflects his values: excellence in care and quality of human contact.

Spotted during his medical studies by Professor Houssiau, Philippe joined the Belgian branch of the Ludwig Institute for Cancer Research in 2001, a center for world-class research. He devoted himself to the treatment of rheumatoid arthritis. The first results have been published.

Although passionate research, Philippe is primarily a physician stimulated by regular contact with patients. That is why he returned to clinical practice and began a specialization in cardiology, he gets in 2007 with "great distinction." After this training, Philippe presented the results of new research to members of the Belgian Society of Cardiology, at their annual conference.

For an additional two years, from 2010 to 2012, he perfected his knowledge abroad, in the field of echocardiography. With this additional acquired, it supports non-invasive cardiology Médimarien and practiced including trans-esophageal echocardiography.

During 2012, he also trained in sport’s cardiology sport with european or worldwide fame cardiologists.

While practicing primarily as general cardiologist (cardiovascular screening, management of coronary disease, heart rhythm disorders, ...)  he has gradually specialized in two areas of expertise: cardiac valvular abnormalities (valvular) and sport’s cardiology.



- Dr. DETHY Martine - 


She is graduated Medical Doctor of the Catholic University of Louvain  with honours in 1982.
She got a degree in cardiology in 1987, having spent two years in Montreal Heart Institute in clinical practice and echocardiographic  research.   
There, she had the opportunity to join the team of the cardiac rehabilitation center named EPIC where she discovered the benefits of training in cardiac patients.

Coming back in Brussels in 1988 she began her career in St Michiels clinic in Etterbeek .
She joined the cardiac team , obtained a degree in cardiac rehabilitation in 1995 and  took part of  the cardiac réhabilitation center.

For familial reasons , she moved in UK in 1999 :  she took the advantage of expatriation to extend her skills in cardiac ultrasounds ( Stress echo et ETO).

Back to Brussels in 2002 , she took her job in St Michiels clinic back and  became the director of the cardiac rehabilitation centre called CRF.
After the loss of a founder doctor,  she started to support the Coronary club CEPC by supervising some of the  sessions.

In 2018 she decided to put an end to her clinical practice and joined the team at Medimarien In her medical practice
she pays particularly attention in the medical anamnesis and the clinical examination .

Convinced by the benefits of training for cardiac patients , she continues to support the coronary club once a week.





The trilingual doctors De Coster and Pirenne both have a full university training which enables them to treat all cardiology situations.

During the consultation they can make use of performant trans-thoracic echographical material.

They carry out exertion tests on the cyclo-ergometer.

Pacemakers can be checked with material which is updated every 6 months.

Holter monitoring is also possible.

Apart from their cardiology activities, Dr De Coster specialize in interventional cardiology and heart catheterization.

He performs coronarographs (coronary angiographies) and angioplasties (PTCA) of their patients him selves in the university UCL Saint Luc in Brussels.