Protea Medical Center

Dr. Brendan McCarthy

Founder & Chief Medical Officer

About Dr. Brendan McCarthy

Dr. Brendan McCarthy founded Protea Medical Center in 2006. In his role as Chief Medical Officer, Protea has grown and evolved into a dynamic medical center serving not only the Phoenix Valley, but also central Arizona.

A licensed Naturopathic Medical Doctor, Dr. McCarthy is also the author of Jump Off The Mood Swing, a book that illustrates his unorthodox approach to mental and emotional wellness through hormone balance.

Using blood work and clinical investigation, he uncovers root causes of common conditions like anxiety, PMS, depression, and slow metabolism. Internationally recognized as an expert in hormone replacement therapy, he has educated physicians and pharmacists on topics ranging from weight loss and infertility to nutritional therapy.

Founder of Protea Life and part of the Medical Team at Protea Medical Center.

Why he practices this way

Time, care and accountability.

Dr. McCarthy says his son's health crisis during medical school shaped the doctor he is today. It is why he spends extra time with patients, focuses on building trust, and believes medicine needs both science and humanity.

He opened Protea in 2006 in two small treatment rooms. Hormone therapy, and progesterone in particular, became the heart of his practice, and over more than 20 years of prescribing hormones he has also taught and mentored other physicians on integrative approaches to hormone therapy, weight loss and fertility.

We don't attack the person. We repair the protocol.
Dr. Brendan McCarthyOn his podcast
  • Author, Jump Off The Mood Swing
  • 20+ years prescribing hormones
  • Weekly podcast since 2022

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