Are You a Candidate for Weight Loss Surgery?

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Voted Seattle Times Best Weight Loss Center

Welcome to Eviva, the leading minimally invasive bariatric surgery center in the Pacific Northwest. Our team of highly skilled surgeons and medical professionals has a track record of success and innovation, being pioneers in procedures such as the vertical sleeve gastrectomy and endoscopic sleeve gastroplasty. With a focus on patient-centered care and on scientific efficacy, we have helped thousands of patients in both the U.S. and internationally for nearly 20 years.

Bariatric Procedures

Vertical Sleeve Gastrectomy

vector image of a torso with stomach visible depicting the removal of a section of the stomach, creating the "gastric sleeve"

Endoscopic Sleeve Gastroplasty

vector image of a torso with stomach visible depicting the suturing of the stomach. the sutures cause the stomach to fold and shrink in volume

Gastric Bypass

vector image of a torso with stomach visible depicting the re-routing of the gastric tract to bypass the stomach.

Bariatric Surgeons

Dr. VanderWel Profile Pic

Brandon Vanderwel, MD

Bariatric & Metabolic Surgeon, Board Certified General Surgeon

"My goal is to help my patients live happier, healthier lives—free from the burdens of obesity—so they can live their lives to the fullest."

dr mimi tan profile pic

Mimi Tan, MD

Bariatric & Metabolic Surgeon, Board Certified General Surgeon

"Surgery is just one part of the journey—true bariatric care is about building lifelong partnerships to support each patient’s unique path to health and well-being."

Financial Resources

Self Pay Information

Eviva is the premier choice for self-pay patients in our region. Our comprehensive program offers competitive pricing, empowering you to prioritize your well-being without compromising your financial peace of mind.

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Insurance Information

Our team is well-versed in insurance intricacies and can guide you through the process with ease. Whether you need clarification on your coverage, or help understanding the benefits available to you, we are here to provide the support you need.
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Latest News

✨Eviva Featured in the AORN Journal✨

A preview of an medical journal article Eviva was featured in

Eviva was recently featured in the AORN Journal, a peer-reviewed medical publication. Read our featured article on ‘Performing Outpatient Bariatric Surgery’ to learn more.

Latest Blog Post

colorful tapestrys hung over a rural village home's door

We’ll Find Out

Life, by its very essence, is a tapestry woven with questions— a handful can arise in a single day. One of its greatest joys lies

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March 21, 2025

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