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About Oliak Center Orange County : Oliak Center for Weight Loss
Oliak Center : Non-Invasive Fat Removal

About Oliak Center

Oliak Center is an Orange County medical practice devoted to weight loss and fat removal. We offer minimally invasive weight loss surgery (see www.oliakcenter.com), and Coolsculpting®, the only effective technique for non-invasive fat removal.

To learn more about Coolsculpting® by Zeltiq, schedule a free, no-obligation consultation - call our office or send us an online contact form today!

Dr. David Oliak M.D.

David Oliak, MD


Dr. Oliak is a board-certified, fellowship trained, laparoscopic and bariatric surgeon who provides laparoscopic weight loss surgery and Coolsculpting® in Orange County, California.

Dr. Oliak attended college at Northwestern University. He then attended medical school at top-ranked Washington University in St. Louis. He went on to complete a six year General Surgery residency at Harbor-UCLA Medical Center in Los Angeles, and a one year laparoscopic weight loss surgery fellowship in New Jersey.

Dr. Oliak has always been interested in less invasive treatment approaches for medical problems. During his residency, he became interested in minimally invasive approaches to weight loss surgery. He felt that if weight loss surgery could be done laparoscopically through small incisions instead of a large incision, patients would greatly benefit.

More recently, Dr. Oliak has become interested in less invasive alternatives for fat removal. Coolsculpting® is an effective, FDA cleared, less invasive, and lower risk alternative to more invasive plastic surgery.

Allison Merriman, MMSc, PA-C

Allison Merriman, MMSc, PA-C


Allison (Alli) is a board-certified physician assistant who has been in practice for almost 10 years. she has worked with Dr. Oliak for more than five years. Alli is the director for our weight loss surgery education, follow-up, and support program, and she is the director of our Coolsculpting® program. She also assists in surgery and provides postoperative patient care.

Alli obtained her bachelors degree in exercise science from Western Washington University. After working in physical therapist for a short time, she decided to go back to school to become a physician assistant. She obtained her masters degree in medicine from one of the most renowned medical schools in the world - Yale University School of Medicine.

Learn more!

Learn more about Coolsculpting® by Zeltiq - schedule a free, no-obligation consultation by calling our office or sending us an online contact form today!