About
David Oliak, MD, serves as physician and Medical Director at MD Total Wellness in Brea, CA. He is a board-certified, fellowship-trained surgeon who specializes in weight loss, hormone therapy, and peptide therapy for men and women. Dr. Oliak has dedicated more than 20 years to weight loss medicine and has personally guided over 3,000 patients through treatment.
He co-founded MD Total Wellness alongside PA Allison Mollet, with whom he has collaborated since 2006. Dr. Oliak takes a functional medicine approach, targeting root causes rather than masking symptoms. He is passionate about hormone optimization, metabolic health, and helping patients achieve lasting results through evidence-based care. He offers free consultations and in-office testosterone testing for new patients.
Education & Training
Fellowship
Fellowship-trained in surgery (specific program not specified)
Certifications
Conditions Treated
Who is Dr. Oliak right for?
Dr. Oliak is a strong fit for adults who want a functional, root-cause approach to metabolic and hormonal health. Men dealing with low testosterone and women seeking bioidentical hormone therapy benefit from his two decades of specialized experience. Patients pursuing medically supervised weight loss through GLP-1 programs will find a provider with deep, hands-on expertise. Adults interested in peptide therapy or hair restoration also fit well within his clinical focus.
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Frequently Asked Questions
Dr. Oliak specializes in hormone therapy, GLP-1 weight loss, and peptide therapy for men and women. He brings more than 20 years of weight loss medicine experience to each patient. His work includes testosterone replacement therapy, bioidentical hormones, and advanced peptide protocols.
Yes, Dr. Oliak is board certified and fellowship-trained in surgery. He serves as the Medical Director at MD Total Wellness in Brea, CA.
Dr. Oliak uses a functional medicine framework, focusing on root causes rather than masking symptoms. He tailors treatment plans based on each patient's metabolic and hormonal profile. His goal is lasting results through evidence-based care.
Dr. Oliak has personally guided over 3,000 patients through weight loss treatment. He has focused on this area for more than 20 years. That depth of experience shapes how he designs each patient's program.
Yes, Dr. Oliak offers free consultations for new patients. He also provides in-office testosterone testing at that initial visit. This gives prospective patients a clear starting point before committing to a program.
Dr. Oliak offers testosterone replacement therapy, bioidentical hormone therapy, and HCG add-on protocols. He treats both men and women with hormone imbalances. His plans aim to optimize hormonal health based on individual lab results and symptoms.
Yes, Dr. Oliak sees patients via telehealth throughout California. In-person visits are available at the Brea office. Patients can choose the format that works best for their schedule and location.
Dr. Oliak works with a broad range of peptides, including Sermorelin, Tesamorelin, BPC-157, TB-500, PT-141, GHK-Cu, Selank, and NAD+. MD Total Wellness sources pharmaceutical-grade peptides and NAD+ manufactured in the USA. He selects protocols based on each patient's specific health and performance goals.
Doctor profile last updated March 21, 2026