Expert Care For Wellness

Bioidentical hormone replacement, weight loss, and hair restoration solutions from board-certified clinicians you can trust.

Schedule a Consult in Brea

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Live Better!

Our healthcare system treats disease. We optimize wellness so you can live better!

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Men’s Hormone Health

Low testosterone is common, and makes men feel “blah,” with low energy, low sex drive, diminished muscle mass, low motivation, and impaired mood. Testosterone optimization can be life-changing!

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Women’s Hormone Health

Bioidentical hormone replacement addresses the root cause of perimenopause and menopause symptoms, reduces the risk for several chronic diseases, and has anti-aging effects.

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Weight Loss

Semaglutide and tirzepatide are game-changers for weight loss. They reduce hunger and cravings, enabling weight loss. With appropriate medical supervision, they are extremely effective and low risk.

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Hair restoration

The Alma TED system is a revolutionary, non-invasive, pain free hair restoration treatment for men and women that results in thicker, fuller hair with increased shine and strength.

MD Total Wellness Is Expert Care

Medical Practice
MDTW is a doctor-owned medical practice in Brea, CA. We are not a telehealth marketing company, or a business-person-owned hormone or weight loss clinic. We value experienced providers and in-person care for better results.
Experienced Providers
David Oliak, MD, and Allison Mollet, PA, are experienced, board-certified clinicians who have worked together for >19 years.
Personalized Care
Get personalized with ongoing follow-up, support, and guidance to achieve real results.
Real Results
Your success is our #1 goal. We’ll work with you to achieve safe, sustainable, and successful results.
Patients First
We prioritize patients first, with quality care, quick scheduling, easy access to the clinicians, free in-office blood tests, in-office same-day medication, and pay-as-you-go affordable monthly prices.

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Are You Ready To Live Better?

Meet with David Oliak, MD, or Allison Mollet, PA-C, in our Orange County Brea office to learn more about bioidentical hormone replacement, GLP-1 weight loss, or hair restoration today!

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Meet Our Team

David Oliak, MD

Physician, Medical Director

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David Oliak, MD

Physician, Medical Director

David Oliak, MD

Physician, Medical Director

Dr. Oliak is a board-certified, fellowship-trained physician who specializes in weight loss and hormone replacement for men and women.

Dr. Oliak went to Northwestern University, where he majored in chemical engineering, and then Washington University School of Medicine were he earned his MD degree. He then completed a general surgery residency at Harbor-UCLA, and a laparoscopic bariatric surgery fellowship at Hackensack University Medical Center in New Jersey. In 2002 he started his career as a laparoscopic weight loss surgeon in Orange County, and has since performed more than 3000 weight loss operations.

In 2023 he transitioned from surgery into medical weight loss, hormone replacement, and wellness. He has been interested in wellness and anti-aging for many years, and made the decision to make the transition after personally experiencing the benefit of hormone replacement for himself, family, and friends. Traditional medical care in the United States is focused on the treatment of disease. He feels there is great need for quality medical care focused instead on the optimization of health and wellness, before the onset of disease.
Allison Mollet, PA-C

Physician Associate

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Allison Mollet, PA-C

Physician Associate

Allison Mollet, PA-C

Physician Associate

Allison Mollet is a board-certified physician associate, in clinical practice since 2002, and specializing in weight loss and hormone replacement for men and women. She started her career in metabolic and weight loss surgery and was drawn to the medical weight loss, wellness, and anti-aging field after recognizing how often serious symptoms of perimenopause, menopause, and testosterone deficiency are overlooked, trivialized, or mistreated. Too often, men and women go decades with significant (and sometime debilitating) symptoms that can be effectively addressed with natural bioidentical hormone replacement. Patients are often unaware of the increased health risks that accompany hormone deficiencies. PA Mollet provides attentive and compassionate care and develops personalized treatment plans based on each patient’s unique needs. She prioritizes wellness and preventative care to help patients reclaim their quality of life.

PA Mollet graduated from Yale University School of Medicine PA Program where she also obtained her Master of Medical Science degree. She earned her bachelor’s degree in exercise science and physical therapy with a minor in Biology from Western Washington University. PA Mollet served as founding faculty and Program Director for the Marshall B. Ketchum School of PA Studies, the first PA program in Orange County, and continues to lecture and teach on specific medical topics.

She is a member of the American Academy of PAs (AAPA), the California Academy PAs (CAPA), the American Academy of Anti-Aging Medicine (A4M), and The Menopause Society.