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Synergy Chiropractic & Wellness Center Wellness Partners


Carmen McCarthy

Carmen McCarthy | Massage Therapist

Massage Therapy has been a part of my life for a long time. My Grandmother was a massage therapist in the past; as long as I can remember it was always something I was interested in. I’ve dedicated my future to following in my Grandmother’s footsteps ever since I was 12 years old. Massage Therapy is one of many passions that I obtain, I like to stay active and involve myself in the community.

My business has recently moved to Synergy Chiropractic in Greenville and I plan to build/expand my business there. I’m excited to see where this journey takes me and to watch my business evolve. I owe lots of thanks to those who have helped me get to where I am today, I have an amazing support system. I’m truly blessed and eager to see who joins me on this unpredictable ride.

Cyndi Anderson

Cyndi Anderson

Cyndi Anderson | Business Office Manager

I love being a part of the Synergy Chiropractic & Wellness Center and Wellness Team! I share their passion for encouraging each patient to live a healthier lifestyle and supporting their body in healing itself.


Before coming to Synergy Chiropractic & Wellness Center, I spent the previous 30 years in retail management, including time as an OTC (over-the-counter) pharmacy manager. As I increased my knowledge of naturopathic healing, I realized that the products I was managing and selling were making people sicker rather than helping them. I desired a career change where I could actually help people find long-term healing. Joining Dr. Will’s Wellness Team at Synergy Chiropractic was an answer to prayer, literally!

Personal Journey

My own personal health journey began in 2014 when I attended a Women’s Wellness event in Green Bay WI. I heard a speaker explain that living a healthier lifestyle, changing your eating habits, and eliminating toxins, both within the body and the home environment, could help a person end their reliance on medical prescriptive drugs. I didn’t believe her! Previously, I had only heard of the medical route to supposed health.

I know our bodies are uniquely designed by God, and I enjoy learning about what I, and others, can do to support a natural healthy immune system. Over the years since that wellness event I have learned that her statements were true! Supporting my body with Chiropractic, massage therapy, and natural healthy supplements has enabled me to eliminate my need for medications.

Synergy Chiropractic & Wellness Center is a great place to come together as a community of health-minded individuals! I have walked the path toward health, and I am here to assist our patients on that same journey!

Renee Holdren

Renee Holdren

Renee Holdren | Registered Nurse

I’ve been a Registered Nurse for over 20 years. I recently graduated as a Certified Health Restoration Coach. I love being a nurse but as the years have gone by, I realized nursing isn’t what it used to be. Patients are sicker than ever and are looking for answers to their health struggles. I knew there had to be a better way for people to get answers and live a healthier life.

I struggled with my own health. I had anxiety, hormone imbalances, and fatigue. After my own health restoration journey, I was able to heal back to the way my body was created. I now have the energy to keep up with my four kids. I no longer suffer from anxiety or hormonal imbalances.

The focus of Health Restoration is overcoming the three main causes of interference in the body: trauma, toxins, and thoughts. To go beyond symptom based care and address your unique physiology in ways that allow your mind and body to find a path back to total wellness.

I offer comprehensive testing of the blood, urine, and stool to look at what may be causing your health struggles. Then, I work to develop a personalized lifestyle health restoration plan. This includes supplements tailored to your needs and a personalized lifestyle plan. I’m here to guide you on your journey to live a more vibrant and healthy life!

Synergy Chiropractic & Wellness Center | (920) 757-6440

Quality chiropractic care for the Greenville, Appleton and Hortonville families.