Breen Center for Optimal Health - Irvine, California

Zachariah Robinson

I highly recommend Dr. Breen! His approach to optimizing overall health has made a significant difference in my life. From the start, he took the time to understand my personal health needs and goals, providing thoughtful and compassionate care every step of the way.

Since working with Dr. Breen and starting hormone replacement therapy, my energy levels and mental clarity have improved significantly. Additionally, the nutrition counseling I received from Cat has been a game-changer. Her guidance on diet and wellness has perfectly complemented my treatment, helping me achieve even better results.

The entire staff is incredibly kind and always solves any issues lightning quick. Choosing to work with Dr. Breen and his team has been one of the best decisions I’ve made for my health. Their commitment to helping patients achieve optimal well-being is truly impressive.

If you’re looking for a team that genuinely cares about your well-being and offers personalized, effective treatments, Dr. Breen, Cat, and the whole team are the perfect choice!

Adam R

The Breen Center for Optimal health and their approach to proactive health has been, and continues to be, a life-changing-for-the-better experience! Dr. Breen and his staff took their time to know me and tailor a health path with my specific needs in mind and genuinely care about helping me achieve my health goals. I cannot recommend this place enough for those wanting to take control of and improve their overall health and aging process, I plan on being a long time client and you should to.

Mike Heath

My first visit felt a bit like a whirlwind, and driving home from the office I honestly wasn't sure what I'd signed up for or if the substantial cost was worth it. But eight months later I can say it's the best money I've ever spent in my life.

I can't argue with the results.

My health has improved dramatically on every metric we're tracking: cholesterol (bad; ratio; total), insulin, body fat, lean muscle, sleep quality, Vitamin D levels, hormone levels...

My mental health is the best it has been in decades.

These improvements did not come without significant commitment on my end: diet, alcohol abstinence, exercise, adherence to medicine and supplement regimen, and emotional work. It's not just "take a pill and feel better". It's a total lifestyle shift.

But if you're willing to make that commitment then Cat (the amazing nutritionist) and Dr. Breen will show you the way, give you the tools and hold you accountable.

Graham B

I did my research and read many reviews before settling on The Breen Center. I did not believe all of the positive reviews, as so many sounded unrealistically good. I WAS WRONG!. These guys turned my health around, I dropped significant body fat, put on lean muscle, came out of Type 2 diabetes, dropped my cholesterol from the 400's, I don't think I have ever looked better. I was so impressed, I introduced my wife and all 3 of my older brothers (one lives in Australia) to these guys and all have had significant results. I believe they have undoubtedly saved lives. Cat, the nutritionist is a God send, I thought I knew nutrition but after a year of working together I now for the first time think I understand what my body needs. I can not thank Dr Breen and the staff enough. In summary, The Breen Center sets the bar for medical community!

Rusty Omer

Dr. Breen has helped me make some great progress in my quest for better health. I have list weight and increased my muscle mass. I have also decreased some medications and even gotten completely off others. I highly recommend the Breen Center.

Ben Dunning

Last year I joined the Breen center for an Executive physical and then Nutrition coaching. The physical and consultation/ care with Dr Breen changed my life. I have learned so much about my overall health and metabolism and I am feeling fantastic. The insights I learned as well as the program he put in place for me has made a dramatic impact in how show up in the world. Energy levels, mood, athletic ability have all helped me be a better father and husband. Cat is a rockstar and has been instrumental fixing my nutrition while keeping me accountable to my Lifestyle changes. Her program has taught me a ton about how to sustain a healthy lifestyle through proper nutrition. She is an amazing person and her approach to coaching will leave you energized to change while not wanting to let her down. :). Mix that with all the support teams that are amazing, generous and always available. Highly recommend!

Michael Gartland

Dr Breen and staff are amazing at what they do. Always accessible and friendly people that have helped me get results. Cat (nutritionist) has really gone out of her way to ensure the program was a success for me. Highly recommend.

Keanu Medina

Dr.Breen and all of his staff are beyond exceptional. Each and every one of them provided me with a wonderful experience that doesn’t even compare to your traditional westernized physician system. From the first day they all made it so that I knew my care was in good hands. I’ve learned soo much about food and nutrition thanks to their wonderful Lead Nutritionist, Cat Edgerton. I’ve formed a wonderful bond with her and trust her with all the questions I had. My experience speaks for itself in the way I now know how to make the right decisions for my health with discernment and clarity. If I had to redo this experience again I 1000% would!

Thank you Dr.Breen, Cat, and everyone at the Breen Center for helping me get my health and life back! I am forever grateful!