Outpatient Surgery with Precision & Ease

At Eviva, general surgery is performed in our state-of-the-art outpatient surgery center by experienced, board-certified surgeons. From minimally invasive diagnostic procedures to advanced treatments for hernias, gallbladder issues, and more, we’re committed to delivering expert care in a safe, comfortable environment.

Trusted Surgical Care, Close to Home

Eviva’s general surgery team specializes in outpatient procedures that address a wide range of conditions—including hernia repair, gallbladder dysfunction, and diagnostic laparoscopy. Our surgeons prioritize minimally invasive techniques whenever possible to help reduce recovery time and get you back to life faster.

Outpatient procedures we perform

General Surgeries & Procedures

Upper Endoscopy (EGD)

What is it:
A procedure that uses a thin, flexible camera to view the esophagus, stomach, and upper small intestine.

Why it’s done:
To check for issues like hiatal hernias, ulcers, or inflammation—especially before bariatric surgery or when evaluating symptoms like reflux.

How it’s performed:
Done under sedation in our outpatient center. A small scope is gently passed through the mouth; the procedure typically takes less than 20 minutes.

Hiatal Hernia Repair

What is it:
A hiatal hernia repair is a procedure to fix a condition where part of the stomach pushes up through the diaphragm into the chest.

Why it happens:
Hiatal hernias often develop due to increased pressure in the abdomen from obesity, pregnancy, heavy lifting, or chronic coughing.

Symptoms may include:
Heartburn, acid reflux, chest pain, or difficulty swallowing.

How it’s fixed:
During surgery, the stomach is gently pulled back into the correct position and the diaphragm opening is tightened, usually with sutures.

Often done during bariatric surgery:
If a hiatal hernia is discovered during a weight loss procedure, it’s commonly repaired at the same time to help reduce acid reflux and improve long-term results.

Gallbladder Dysfunction

What is it:
A condition where the gallbladder doesn’t contract or empty properly, sometimes even without gallstones.

Why it happens:
Poor gallbladder function can lead to nausea, bloating, or pain after eating—often caused by slowed bile flow or chronic irritation.

How it’s treated:
If testing (like a HIDA scan) confirms dysfunction, the gallbladder may be removed laparoscopically to relieve symptoms.

Diagnostic Laparoscopy

What is it:
A minimally invasive surgery that allows doctors to look inside the abdomen with a small camera.

Why it’s done:
Used to diagnose unexplained pain, evaluate scar tissue, or investigate complications not visible on imaging.

How it’s performed:
Small incisions are made under anesthesia, and a camera is inserted to examine internal organs. It’s done outpatient with a short recovery time.

Providers

Who to See for General Surgery

Mimi Tan, MD

Bariatric & Metabolic Surgeon, Board Certified General Surgeon

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

Brandon VanderWel, MD

Bariatric & Metabolic Surgeon, Board Certified General Surgeon

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

How can we help you?​