Who We Are

Dr. Kathryn Retzler

Dr. Kathryn Retzler

The purpose of my life is to inspire millions of people to achieve vibrant health and longevity and to help prevent as many cases of premature death as possible. I believe every person has a unique path to vibrant health, and that optimal aging and healthy brain function are possible for everyone. I believe the more people I influence, the more precious, quality time they'll have to fulfill their purpose and to experience the joys and blessings of the world.

I believe many people settle for a negative definition of aging. I do not accept that aging means falling apart on schedule. I have a high standard for my physical, mental, and spiritual health, improving every year. I hold the same vision for my patients.

The tools I use to fulfill my purpose include sharing knowledge, providing authentic leadership, offering successful treatments, and continually improving my skills and education. I am grateful for my work, and committed to fulfilling my purpose.


I received my doctorate from the National College of Naturopathic Medicine in Portland, Oregon in 2001. After completing an internship in integrative medicine with Andrew Weil MD, and a residency in McMinnville, OR with Bruce Dickson, ND, I decided to focus my enthusiasm, talents, and knowledge in building bridges between conventional and alternative medicine.

I founded HormoneSynergy to help people achieve vibrant health, ideal brain function, and longevity. As a specialist in holistic medicine, I understand the role balanced hormones and neurotransmitters play in all areas of health. I completed a fellowship in preventive cardiology through the American Academy of Anti-Aging Medicine with Mark Houston, MD and I attend several age management and brain health seminars and conferences yearly, with gratitude to the mentors who've influenced my work--Rebecca Glaser, MD, Thierry Hertoghe, MD, and Daniel Amen, MD.

I recommend effective, evidence based natural therapies, lifestyle changes, and bioidentical hormones to address the underlying causes of hormone imbalance and restore health and vitality.

To hear what others are saying about Dr. Retzler, click here!

Daniel Soule

Daniel Soule

"Let me help you write a new life story!"

Each of us has a story about our life. It is continuously being written by our underlying beliefs, assumptions, and experiences. The story we write about our life defines us in the present and guides us toward our future. It either supports us or diminishes us.

Growth and change begins when you accept personal story ownership: the recognition that you are the author of your own story. You can change your story at any time. When you change your story you will change your life. I can help you write the story about the life you want to have.

I am a certified spiritual and life coach, counselor and ordained minister. I love to motivate, inspire, and influence others to make positive change in their lives. I am passionate about life and learning. I'll use my passion for life, my skills and my own experience to help you navigate the gap between where you are and where you want to be, achieving the positive change you desire.

I am the owner and clinic director for HormoneSynergy Inc. In addition to spending time with my family, I enjoy regular exercise, biking, movies, and coastal getaways. Together with Dr. Retzler, I am committed to providing you an opportunity to change your life employing my passion, education, skills, and ever expanding personal experience.


I received my degree from Wichita State University and attended New West Seminary in Portland Oregon. I received my ICF coaching certification training from New Vibe Training Center and my certification in advanced clinical hypnotherapy and NLP from Apositiva Counseling and Training Center.


  • Wichita State University, KS. Bachelors, Psychology, Sociology/Anthropology
  • New West Seminary, Oregon City, OR. Interfaith Studies, Studies in Consciousness

Continuing Education

  • New Vibe Training, Portland OR-ICF Coaching Certification
  • Apositiva Counseling Center, Portland, OR. Certification in Advanced Clinical Hypnotherapy and Neuro-linguistic Programming,
  • AMPAC UniversityCertification in Clinical Hypnotherapy
  • Kansas College of Chinese Medicine, Wichita, KS.Certification in Massage Therapy
  • Total Health Works School of Massage, Wichita, KS.Certification in Massage Therapy
  • Your New Life Story®Health and Wellness Coaching Certification
  • Dr. Daniel Amen - *Unchain Your Brain - Breaking the addictions that steal your life!


*We are a holistic longevity medical practice specializing in Bioidentical Hormones, Age Management and Functional Medicine. Our mission is to prevent, slow, and treat age and lifestyle-related disease. We only prescribe bioidentical hormones within the context of a comprehensive treatment plan with the goal of helping you achieve optimal health and well being. We do not prescribe hormones to anyone with a history of illegal steroid use, bodybuilders, or anyone looking for isolated improvements in sports performance. No medications or hormones will ever be dispensed by HormoneSynergy Clinic LLC or Dr. Retzler without an in office consultation, comprehensive medical evaluation, laboratory testing, a prescription, and proper follow up protocols. This clinic does not prescribe growth hormone for anti-aging purposes. Dr. Retzler does not participate with any insurance providers, accept any insurance reimbursement, or make any profit from lab testing.