Dr. Oliak is a board certified, fellowship trained surgeon who specializes in laparoscopic and robotic weight loss surgery. He has been in practice in Orange County, California, since 2002, and has completed more than 2500 weight loss operations. Most importantly, Dr. Oliak has a track record of excellent, industry-leading patient outcomes.*

Meet Orange County Bariatric Surgeon David Oliak, MD

Dr. Oliak made two life altering decisions at a young age while growing up in Kenosha, Wisconsin. He decided he wanted to live somewhere warm, and that he wanted to be a doctor.

He moved south to Evanston, Illinois to attend college at Northwestern University, (B.S. degree chemical engineering), and further south to St. Louis, Missouri, to attend medical school at top-ranked Washington University School of Medicine.

After medical school he moved to the warm weather of Los Angeles (finally!) for a 6 year general surgery residency at Harbor-UCLA Medical Center.

Dr. Oliak decided during his surgery residency that he wanted to specialize in laparoscopic weight loss surgery. This outweighed his desire for warm weather, so after his residency he moved to Manhattan for a one-year laparoscopic bariatric surgery fellowship (one of the first in the country) at Hackensack University Medical Center in New Jersey.

After completing his fellowship in 2002, Dr. Oliak moved back to the warm weather of Southern California with his future wife (whom he met in NYC) to start his practice as a laparoscopic bariatric surgeon in Orange County and Los Angeles.

Dr. Oliak’s practice philosophy has always been to prioritize patients first. What this means to him is achieving the best possible outcomes for his patients. This is the #1 thing he would want as a patient, so this is the #1 thing he prioritizes as a surgeon.

In Dr. Oliak’s experience, quality of surgery, thorough and comprehensive patient education, frequent follow-up after surgery, and ongoing support are the key elements necessary for achieving great outcomes. These are the key elements of his bariatric surgery practice.

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So what are Dr. Oliak’s patient outcomes? Since starting his career in 2002, his weight loss statistics and complication statistics have beaten the industry averages, both for gastric sleeve surgery and gastric bypass surgery.*

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Professional Accomplishments

Dr. Oliak was the first Orange County bariatric surgeon to complete a laparoscopic bariatric surgery fellowship, and one of the first Orange County bariatric surgeons to routinely perform laparoscopic gastric bypass surgery rather than open gastric bypass surgery.

Dr. Oliak has developed two successful center of excellence bariatric programs in Orange County, one at Chapman Medical Center, and one at Placentia-Linda Hospital.

Dr. Oliak has published numerous outcomes-focused research studies, including studies on the learning curve for laparoscopic bariatric surgery, studies on outcomes for higher BMI patients, and studies on outcomes for older patients. Dr. Oliak has published his research in numerous scientific journals and has presented his data at national and international surgical meetings.

Orange County bariatric surgeon Dr. Oliak is a sought out weight loss surgery expert. He was an instructor for surgeons learning to perform LAP-BAND® surgery. He is a bariatric surgery consultant and bariatric surgery expert witness for bariatric surgery malpractice matters. He has appeared on national television shows, including The View (video clip) and The Tyra Banks Show (video clip), and on local news stations, including KCAL and CBS.

* Patient results vary after weight loss surgery. ** Leaks can occur after gastric surgery. Past performance may not be indicative of future results. Orange County bariatric surgeon Dr. Oliak’s 0% leak rate statistic applies to primary and revision sleeve gastrectomy operations.

Schedule an educational consultation with Dr. Oliak

Learn more about weight loss surgery and our Orange County weight loss surgery program by attending a private educational consultation or a group informational seminar with Dr. Oliak in Brea or Irvine. Call our office or send us a contact form today!

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Dr. Oliak’s Blog

Orange County bariatric surgeon Dr. Oliak

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