Welcome to So Cal Weight Loss Institute

Where all your weight-loss needs can be met. Our institute provides nutritional advice, medical and surgical weight-loss interventions, and plastic/reconstructive procedures in order to help patients achieve their physical, psychological, social, and spiritual goals.

- John Yadegar, MD

Dr. Yadegar

Meet Dr. Yadegar and Team

People, Photos & Bios

Dr. John Yadegar is passionate about the advantages of weight loss surgery and the life changing benefits and transformation that it offers his patients. "Good health is everything ".

The mission of the weight loss surgery program is to deliver a comprehensive patient-focused and hands on holistic care, with safety and excellent outcome as its core values. In its 15 years of service the program has delivered the highest standard of care with the lowest complication rates to more than 3000 patients from all around the world, including USA, Europe, Asia, India and Africa.

"I am passionate about the benefits of bariatric surgery and have seen the life-changing effects it has on patients. They have so much life still ahead of them, and you really see them blossom and transform their lives. It is very gratifying to perform weight loss surgery and see patients so radically change their lives and health in as little as six months."

-John Yadegar, M.D.

Learn More

Patient Stories


  • By the time I celebrated my 2-year weight loss surgery anniversary, I was hiking, zip-lining and enjoying trips to Las Vegas. I was grateful for my improved health and renewed life after losing nearly 200 pounds.
  • My husband had surgery with Dr. Yadegar. He is the absolute best doctor. He takes time with all of his patients to go over everything that will be expected of them and what they can expect from the surgery. The surgery for my husband was life changing. We thank you from the bottom of our hearts.

Gastric Sleeve

Sleeve Gastrectomy has proven to be a very successful operation over the last sixteen years. In the procedure, 70-80% of the stomach is removed. This reduces hunger and increase satiety with smaller portions.

Learn More

Have Questions?

Call us at 661.723.7833

Gastric Bypass

Gastric Bypass is a combined operation in which a 1ounce pouch is made and the remaining stomach and portion of the small bowel are bypassed. The patient is then restricted and eats smaller portions, increasing satiety and reducing absorption. Patients can expect to reduce their excess body weight by 80-85%.

Learn More

Restrictive Band Surgery

This surgery (LAP BAND®) involves a restrictive ring that is placed on the upper portion of the stomach making a small pouch, which results in the patient feeling satiated with smaller portions.

Learn More

Ready to Get Started?

Book An Appointment

Minimally Invasive Gastrointestinal Surgery

Dr. Yadegar is a Board Certified General and Bariatric surgeon, performing many gastrointestinal procedures laparoscopically. These include Gallbladder, various hernia surgeries, gastric and intestinal operations and soft tissue surgeries such as Lipomas and other masses. Many general surgical operations may be performed Laparoscopically thru small incisions, which will cause less pain, faster recovery, better outcome and faster return to work.

For further information please contact our office at 661.723.7833.

Learn More

Before & Afters

See how some of our clients have tranformed their bodies and their lives with SoCal Weight Loss Institute Inc.

See More Results


Memos From Dr. Yadegar

Dr. Yadegar's Memos

I would like to take this opportunity to inform you that our Bariatric program has now been awarded The National Blue Cross Plus Distinction Certificate for Center of Excellence in Bariatric Surgery. This is in a line of awards over the years acknowledging the outstanding outcomes and care delivered to our patients and community. Other awards include our Center of Excellence from the American Society of Metabolic and Bariatric Surgery/American College of Surgery, Aetna, Blue Shield, Cigna, Kaiser and Tricare, and our recognition by Health Grades-an independent ranking body as the Top 10% Bariatric program in the US.

Learn More