Orange County weight loss surgeon Dr. Oliak

David Oliak, MD

Dr. Oliak is a premier Orange County bariatric surgeon with a 14-year record of industry-leading patient outcomes.*

Orange County bariatric surgery mission

Our Mission

Dr. Oliak’s mission is to achieve great patient outcomes by providing exceptional surgery and patient care.*

Orange County weight loss surgery outcomes

Great Outcomes

Patient outcomes vary by surgeon – Dr. Oliak’s outcomes rank among the best in the field.*

Orange County Weight Loss Surgery

Dr. Oliak offers patients (BMI>30) a comprehensive Orange County weight loss surgery program that combines thorough education, expert surgery (gastric sleeve, gastric bypass), postoperative follow-up, and ongoing support. Dr. Oiak also offers revisional surgery to patients who initially had bariatric surgery elsewhere.*

The best indicator of quality, of course, is actual patient outcomes – Dr. Oliak’s program has an established record (>2500 operations since 2002) of excellent, industry-leading patient outcomes (read more).* The importance of this record is highlighted by an April 2017 study published in JAMA which found a 17-fold variation in rates of serious complications across accredited center of excellence weight loss surgery programs nationally (read more).

To learn more about weight loss surgery and our Orange County weight loss surgery program, schedule a free no-obligation consultation in Brea or Irvine with Dr. Oliak today!

Free Consult


The cost? Losing weight and gaining health is easier than you think.

Payment Options

Free Consult

Call 714-582-2530 or submit the following information to request a free consult. If you have insurance coverage for weight loss surgery (or are self-pay), and you meet the BMI criteria for surgery, we will schedule you for a 30-40 minute educational consultation with Dr. Oliak.

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