Meet our specialists
Together, we have performed as many as more than ten thousand stomach reduction surgeries
WeightWorks specialists are fully dedicated to gastric reduction surgery and the treatment of obesity. Together, Dr. Edo Aarts, Dr. Frits Berends, Dr. Kevin Göttgens, Dr. Gabor Abis and Dr. Thomas Vermeer have performed more than ten thousand gastric reduction surgeries and guided many more people to a healthy weight. They also publish many scientific articles on gastric reduction surgery.
The WeightWorks clinic is specially built and equipped for this type of surgery. Together with the Weightworks team, they make sure you receive the very best treatment and aftercare.
Our specialists:
Gastrointestinal surgeon since 1999. He received his doctorate on the topic of "keyhole surgery for solid abdominal organs. In 2004, he and Dr. Ignace Janssen started the Vitalys clinic for gastric reductions in Arnhem. In Arnhem, he was involved in the introduction of ...
Dr. Edo Aarts was captivated early in his training as a surgeon by all that is involved in gastric reduction surgery. Together with Dr. Frits Berends and Dr. Ignace Janssen, he set up a research department for gastric surgery at Rijnstate in Arnhem ...
Dr. Kevin Göttgens trained as a gastrointestinal surgeon at Maastricht University Medical Center and Catharina Hospital in Eindhoven. At Catharina Hospital, he was fully trained as a gastrointestinal surgeon and also specifically in gastric reduction surgery. After his training, he worked for two ...
Dr. Gabor Abis was interested in keyhole surgery for problems in the abdomen even before his training as a surgeon and continued to specialize in this during his training, and thereafter. He did his training at the VU Medical Center in Amsterdam and ...
Dr. Thomas Vermeer trained as a gastrointestinal surgeon at Maastricht University Medical Center and Zuyderland Hospital in Sittard/Heerlen. The foundation of his career was laid at the Catharina Hospital in Eindhoven where he gained much scientific experience and where he also completed his ...
Maag-Darm Chirurg
My passion for surgery originated in the field of traumatology. During my medical studies, I conducted research on elderly patients with hip fractures. As I progressed through my surgical training, I discovered that my skills and interests aligned more with laparoscopic surgery — ...
Maag-Darm Chirurg
Dr. Larissa Tseng has been performing gastric bypass surgeries for many years. She is an experienced and committed bariatric surgeon with a broad background in abdominal surgery, always maintaining a strong and passionate focus on minimally invasive techniques. Since February 2025, Dr. ...
