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Dr. Larissa Tseng

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. Tseng has been working with great enthusiasm and dedication as a surgeon at WeightWorks.

“Surgery is like art. You can only create something beautiful with joy, love, and passion. I enjoy guiding people who take the step toward a healthier life through gastric bypass surgery. What drives me is my passion for the profession and the opportunity to truly make a difference in my patients’ lives. I believe in a personal and careful approach, where trust and clear communication are key. Every patient is unique, and my goal is to work together to achieve the best possible care and outcome.”

- Dr. Larissa Tseng

Dr. Tseng began her surgical career in 2005 at the Groene Hart Hospital in Gouda, where she played a pivotal role in establishing and expanding laparoscopic surgery. She also worked for 15 years at the Dutch Obesity Clinic (NOK) West in The Hague, where she guided countless patients in their journey toward a healthier life through gastric bypass surgery, performing over 3,000 bariatric procedures.

Treatment

Gastric Bypass

(gastric bypass)

A gastric bypass or stomach bypass is an operation in which the stomach is reduced in size and the digestive tract rerouted. People with gastric bypass lose an average of 70 percent of their excess weight.

Treatment

Gastric Sleeve

(Tube stomach)

A Gastric Sleeve or tube stomach is an operation in which part of the stomach is closed with staples and then removed. With that, the stomach becomes about ¾ smaller. What remains is a tube stomach as thick as your thumb on the inside. Not much food will fit in there anymore. Removing part of the stomach decreases the feeling of hunger.

Treatment

Mini Gastric Bypass

(gastric bypass)

The Mini Gastric Bypass is a variation of the classic Gastric Bypass in which a small part of the stomach is cast off. The stomach reservoir is slightly longer to prevent bile from flowing back into the esophagus and the rest of the stomach just stays in place.

Learn more about:

A stomach reduction surgery is basically reimbursed from your basic package. That means your health insurance company will pay for the surgery if you meet the requirements. You do pay your own deductible each year.

Although the risks of our operations are low, it is not completely harmless. Therefore, it is important to know the risks in advance so you can make a good decision. Check out our overview of the criteria you must meet.