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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.

Upcoming Events​

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Welcome Dr. Mimi Tan​

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We are delighted to announce that Dr. Tan has joined Eviva’s team of bariatric surgeons!

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Get to know Dr. Tan

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.

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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Weight Loss Surgery

Deciding whether to partake in bariatric procedures is a difficult one. You’ve made it this far, and have already begun the process. Learn more about the minimally invasive bariatric procedures options that our board certified surgeons can provide to help you accomplish your weight loss goals.
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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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Meet The Team

We are the surgeons who pioneered the outpatient LapSleeve® procedure. We have performed this procedure, which is a variation of the vertical sleeve gastrectomy, on over 3000 patients. Our board-certified surgeons, physicians, and dietitians work in concert in a program tailored to your story.
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