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Outpatient Weight Loss Surgery With Life-Changing Results

Explore your surgical weight loss options and find the right path for you.

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You’ve tried everything. Let’s talk about what actually works.

For many people, weight loss feels like a cycle of temporary wins followed by frustrating setbacks. You try everything. Track every bite, push through every workout, only to watch the weight creep back. It’s not a lack of effort. It’s your body fighting to stay the same.

Weight loss surgery can be the reset button your body has been missing—and the momentum to take back control.

At Eviva, we specialize in powerful, lasting solutions that put you back in control. Weight loss surgery isn’t just about losing pounds—it’s about resetting how your body and mind respond to hunger, portions, and progress. Our outpatient procedures are safe, effective, and personalized to your goals—so what once felt like an uphill battle can finally become sustainable, forward momentum.

Cristina, a gastric sleeve patient, smiles confidently while seated on a plane—symbolizing newfound comfort and confidence in a setting that often causes anxiety for individuals with obesity.
After weight loss surgery with Eviva, Cristina now flies comfortably in any seat—with confidence and ease.
Surgical Weight Loss Options​

Our surgeons work closely with you to determine which weight loss procedure best matches your goals, medical needs, and lifestyle. From advanced laparoscopic techniques to non-surgical endoscopic procedures, each option we offer is backed by proven outcomes and long-term success. We also offer revision surgery for patients who’ve had prior procedures and need additional support.

Minimally Invasive Laparoscopic Surgeries​

Gastric Sleeve (LapSleeve®)

3D illustration of a stomach after sleeve gastrectomy, showing the reduced, tube-shaped stomach with surgical sutures.
Gastric Sleeve Resources
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  • Overview: The gastric sleeve, or sleeve gastrectomy, is a laparoscopic procedure where approximately 80% of the stomach is removed, leaving a tubular “sleeve” that limits food intake.

  • How It Works: By reducing stomach size and removing the hunger-inducing hormone-producing part (fundus), it decreases appetite and promotes satiety.

  • Benefits: Patients typically experience a 25–30% total body weight loss. The procedure also improves conditions like type 2 diabetes, hypertension, high cholesterol, and sleep apnea.

  • Ideal Candidates: Individuals with a BMI over 35. It is also frequently performed on BMI between 30–35.

  • Recovery: Most patients go home the same day. Recovery involves a staged diet starting with liquids and gradually progressing to solids over several weeks.

More Gastric Sleeve Resources

Gastric Bypass

3D illustration of a stomach after gastric bypass surgery, showing the small pouch connected directly to the small intestine, bypassing the lower stomach.
Gastric Bypass Resources
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  • Overview: Gastric bypass is a laparoscopic procedure that alters both the stomach and small intestine to reduce food intake and calorie absorption. A small pouch is created at the top of the stomach and connected directly to the small intestine.

  • How It Works: The procedure limits how much food you can eat and bypasses part of the intestine to reduce calorie absorption. It also influences hormones involved in hunger and blood sugar regulation.

  • Benefits: Patients may lose 30–35% of their total body weight. Gastric bypass has strong results for resolving type 2 diabetes, GERD, and metabolic syndrome.

  • Ideal Candidates: Individuals with a BMI over 35, especially those with type 2 diabetes, severe acid reflux, or complex metabolic conditions.

  • Recovery: Most patients go home the same day. Recovery includes a gradual diet progression and routine follow-ups for long-term support.

Gastric Band (LapBand®)

3D illustration of a stomach with an adjustable gastric band in place, showing the band around the upper portion and connected to a port.
Gastric Band Resources
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  • Overview: The lap band involves placing an adjustable silicone band around the upper portion of the stomach, creating a small pouch to restrict food intake.
  • How It Works: The band creates early satiety by limiting how much food the pouch can hold. The tightness of the band is adjusted through a port placed under the skin.
  • Benefits: Less invasive with no stomach cutting or stapling. Adjustable and reversible. Typically results in 15–20% total body weight loss.
  • Ideal Candidates: Patients who prefer a reversible option or who may not qualify for sleeve or bypass procedures.
  • Recovery: Same-day discharge is common. Return to work within a few days. Band adjustments are performed in the clinic as needed.

Laparoscopic & Endoscopic Revision

Gastric Revision 3d Stomach
Revision Resources
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  • Overview: Revision surgery involves modifying or converting a previous weight loss procedure—such as converting a Lap Band to a Sleeve or Bypass—when initial results are inadequate or complications arise.

  • How It Works: Depending on the patient’s history and current needs, the revision may involve removing or modifying existing devices, reshaping the stomach, or rerouting the intestines.

  • Benefits: Offers a second chance at weight loss success. Can resolve issues such as inadequate weight loss, band slippage, reflux, or weight regain.

  • Ideal Candidates: Patients who had prior bariatric surgery but experienced complications, minimal results, or weight regain.

  • Recovery: Varies by procedure. Most are still performed laparoscopically with a focus on minimal downtime and tailored aftercare.

More than just weight loss—it’s a second chance at life

The Life-Changing Benefits of Bariatric Surgery

Exceptional and Sustained Weight Loss

Surgery permanently alters the digestive system, leading to greater and more sustainable weight loss compared to medications or diet alone.

Reversal of Serious Health Conditions

Bariatric surgery often resolves or dramatically improves type 2 diabetes, sleep apnea, hypertension, and other life-threatening conditions.

One Procedure, Lifelong Support

Eviva’s program includes ongoing aftercare, dietitian access, and peer support—ensuring success long after surgery.

Our Process

How our Bariatric Surgery Program Works

Step 1.
Schedule a Virtual Consultation

Meet with one of Eviva's world class surgeons to learn which procedure is right for you.

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Step 2.
Intake + Insurance Review 

Your Bariatric Pathway Coordinator (BPC) is here to help every step of the way—navigating insurance approvals, clinical milestones, or walking you through the self-pay process.

Step 3.
Surgery Day

Your journey begins today—and you’re in the best hands. Our streamlined outpatient approach means most patients are home the same day, recovering comfortably and confidently with support from our experienced team.

Gastric Sleeve PATIENT SPOTLIGHT — Tina

“I truly believe having this surgery has saved my life.”

After a lifelong struggle with her weight, Tina turned to Eviva for support. With the Eviva team by her side, she lost over 160 lbs, reversed her high blood pressure and sleep apnea, and reclaimed her energy, confidence, and love for life.

Testimonials

Patient Before & After Pictures

Tina

Gastric Sleeve

Misty 

Endoscopic Sleeve Gastroplasty

Lisa 

Gastric Sleeve

Jon

Gastric Bypass

Ali 

Endoscopic Sleeve Gastroplasty

Zuleica 

Gastric Sleeve

Providers

Who to See for Surgical Weight Loss

Mimi Tan, MD

Bariatric & Metabolic Surgeon, Board Certified General Surgeon

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Profile picture of Dr. VanderWel wearing scrubs in front of blue background

Brandon VanderWel, MD

Bariatric & Metabolic Surgeon, Board Certified General Surgeon

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Smiling male doctor in a white coat with a yellow tie and blue shirt, sitting in a bright medical office.

Robert Landerholm, MD

Board Certified General Surgeon, Bariatric & Advanced Minimally Invasive Surgery

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FAQ

Most Popular Weight Loss Questions

Am I a candidate for weight loss surgery?

If you’ve been struggling to lose weight, bariatric surgery may be the most effective way to achieve lasting results and improve your health. Most candidates meet certain guidelines related to weight, BMI, or health conditions — but the best way to know? Take our “Am I a Candidate?” Quiz

Most patients lose about 1/3 of their total body weight-often improving or resolving conditions like diabetes, sleep apnea, and hypertension. Long-term success depends on ongoing support and healthy lifestyle changes, which is why Eviva offers continuous aftercare.

Weight loss injections (like GLP-1 medications such as semaglutide / Ozempic / Wegovy or tirzepatide / Mounjaro / Zepbound) help control appetite and blood sugar, leading to gradual weight loss—typically around 10-15% of body weight with ongoing use. They are non-surgical but often require long-term use and can be costly without insurance. Unfortunately, the majority of patients gain weight back after stopping medications.

Bariatric surgery (such as gastric sleeve or bypass) is a more permanent option that physically alters the digestive system to limit intake and/or absorption. It typically results in more significant weight loss (30–35% of total body weight), especially for those with higher BMIs or obesity-related health conditions.

In short: Injections are less invasive but slower and often temporary; surgery is more effective long-term but involves recovery and commitment.

The majority of our patients are able to maintain their weight loss. About 1 in 4 may regain some weight, but it’s uncommon for anyone to return to their highest weight. Surgery is a powerful tool, not a cure, and it works best when combined with long-term support.

We’re aiming for healthy, happy, and sustainable. And we’re with you every step of the way.

​At Eviva, we accept various insurance plans for weight loss surgery, including Aetna, Cigna, Premera, Regence, United Healthcare, and others. Coverage varies by policy, so it’s essential to verify your benefits. Our experienced Insurance Coordinator can assist you in navigating this process. ​
Visit our Insurance Information page for more details.

Insurance Information

Eviva’s self-pay surgery package offers a comprehensive solution for individuals seeking weight loss surgery without the constraints of insurance. The package includes:

  • Hospital and facility fees
  • Anesthesiology services
  • Surgeon and procedure fees
  • Comprehensive pre-surgery care, encompassing consultation, pre-operative visit, and dietary education
  • BLISCare insurance for added protection
  • Lifetime access to support groups

Please note that pre-screening assessments and diagnostic testing fees are not included but may be covered by insurance. For more details, visit our self-pay information page.

Self Pay Information

All these options are excellent weight loss tools that reduce the volume of your stomach to aid with portion control and calorie deficit weight loss.

  • Gastric sleeve (VSG): Removes part of the stomach to limit how much you can eat and reduce hunger hormones.
  • Gastric bypass: Reroutes the digestive system to reduce calorie absorption and improve blood sugar control.
  • Endoscopic sleeve gastroplasty (ESG): A non-surgical procedure that reshapes the stomach using a camera and sutures—no incisions or hospital stay needed.

Each procedure offers different benefits depending on your health and goals. Talk to our team to find out which is right for you.

How can we help you?​