Professor Jan Willem Greve, MD

Specialist surgeon in visceral & bariatric surgery /
Medical Director Weight Doctors Nederland


Obesity is a chronic disease with complex causes in most patients. With my scientific and clinical contribution, I would like to ensure that my future patients receive the best possible individual treatment based on the latest medical knowledge and possibilities – for the longest possible success.

Career & Education

Professor Jan Willem Greve, MD and his team are your point of contact for weight loss with the Weight Doctors SLEEVE® using the Apollo OverStitch SX technology and the pose®2 Endo-Sleeve technology. Recognised both in the Netherlands and internationally for his scientific contribution, this accomplished specialist has decades of experience in both bariatric surgery and endoscopic bariatrics. In October 2022, Prof Greve was awarded the Order of Merit of Orange-Nassau of the Netherlands.  

Since 2022
Global Lead Surgeon at the Weight Doctors for the Weight Doctors SLEEVE® using the Apollo OverStitch SX technology and the pose®2 endo-sleeve technology.  


Since 2022
Medical Director, Weight Doctors Netherlands
Waalre, Netherlands


Since 2019
Professor of Metabolic and Bariatric Surgery at the Faculty of Medicine, Maastricht University
Maastricht, Netherlands


Since 2015
Chairman of the joint Medical Ethics Committee of Zuyderland Hospital and Zuyd University
Heerlen, Netherlands


until September 2022
Head of Visceral and Obesity Surgery of Zuyderland Klinikum
Heerlen, Netherlands


until September 2022
Medical Director of the Obesitas Kliniken South

2008 – 2022
Surgeon in the Department of Surgery at Zuyderland Hospital and Head of Bariatric Surgery
Heerlen, Netherlands

Professor of Surgery at Maastricht University Hospital (MUMC) and holder of the Chair of Gastrointestinal and Oncological Surgery. Programme Director for Bariatric Surgery at MUMC
Maastricht, Netherlands


Associate Professor of Surgery at Maastricht University Hospital
Maastricht, Netherlands


Dissertation: Complications in obstructive jaundice. An experimental study on aetiology and prevention.


1982 – 1989
Surgical training at the University Hospital Maastricht
Maastricht, Netherlands


1974 – 1981
Study of human medicine at the Catholic University of Leuven (KUL)
Leuven, Belgium

Weight Doctors - Global Lead Surgeon - Prof Jan Willem Greve


Experience & Expertise

Professor Jan Willem Greve is the medical director of Weight Doctors Netherlands and the specialist in charge at the Weight Doctors Waalre clinic near Eindhoven. He is a member of the Weight Doctors Global Lead Surgeon team.

Specialist with the most experience in the Netherlands in the delivery of the revolutionary pose®2 endo-sleeve procedure and pose® procedure  


Professor Jan Willem Greve is the first Dutch specialist certified for Weight Doctors SLEEVE®: the leading procedure for endoscopic stomach reduction without traditional surgery.  


He has performed thousands of bariatric surgical operations as well as endoscopic bariatric procedures in his career.  


Professor Jan Willem Greve is internationally renowned for his numerous scientific publications, papers and lectures. He is a recognised obesity expert as a study author, keynote speaker and medical proctor for minimally invasive obesity treatments. 


Professor Jan Willem Greve is a regular author and co-author of publications in both medical journals and scientific journals.  


Author of more than 220 articles in international journals and several book chapters both in the field of bariatric surgery and intensive care medicine 



Further milestones and accreditations:


Co-founder and past president of the Benelux Association for Bariatric Surgeons (currently continuing as the Dutch Society of Metabolic and Bariatric Surgery DSMBS)

Member of the Editorial Board of Obesity Surgery (since January 1998)

Co-editor of the Journal Obesity Surgery (since March 2000)

President of the International Federation for the Surgery of Obesity and metabolic disorders (IFSO) 2005-2006

Organiser of the 3rd World Congress of the International Federation for the Surgery of Obesity, Bruges, Belgium, 3-5 September 1998  

Organiser and President of the 10th World Congress of IFSO August 2005, Maastricht, The Netherlands

Supervisor of 18 dissertations, 11 of them on morbid obesity  

Elected President of the Board of Trustees of the International Federation for the Surgery of Obesity and metabolic disorders  


Get to know Professor Jan Willem Greve, MD

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Experience really matters

Undergoing weight loss treatment is a big decision, often patients have considered it for years before taking the plunge. 

For a long time patients were presented only with surgical options for obesity. Whilst these options can be good, they are also invasive. Weight Doctors® recognised early on that a large potion of weight loss patients are generally healthy with a BMI lower than 50. A minimally invasive, yet powerful procedure suits these patients perfectly. 

Weight Doctors® were amongst the first European specialists to provide Endoscopic treatment for weight loss and have grown to be the largest with centres across UK, the Netherlands, South Africa, Germany and beyond. Not only that, Endoscopic treatment is our speciality and passion. 

Working with International experts such as Dr Devinder Bansi, Professor Karl Miller and Professor Thomas Hoelting soon saw Weight Doctors® at the cutting edge of endoscopic treatment and performing cases in high volume. 

Now ESG sits alongside traditional surgical weight loss methods, is approved for use within the NHS and attracts around 10'000 patients each year. 

With all this said, ESG is an intricate procedure only to be performed by experts who carry out the procedure routinely and with an excellent clinical team. At Weight Doctors®, patients can be confident of this expert team, alongside excellent clinical facilities and industry leading aftercare. Read more about the 12 best reasons to choose Weight Doctors®.

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