Our Doctors

Dr. David A. Jernigan, D.C. – Founder

Dr. JerniganDr. Jernigan is a published author and is nationally recognized as a leader in Biological Medicine and the treatment of chronic illness. Graduating with a Bachelor’s degree in Nutrition with honors, he received his doctorate in Chiropractic Medicine at Cleveland Chiropractic College-KC. Post Graduate studies have taken him far and wide, studying natural and anthroposophical medicine in Germany and Biological Medicine with the world-renowned Dr. Thomas Rau, MD, of the Paracelsus Klinic of Switzerland. Dr Jernigan received his certification in Botanical Medicine through the University of Colorado, School of Pharmacy. He is also the developer of the diagnostic and treatment technique Bio-Resonance Scanning™, NeuroCardial Synchronization™, and NeuroPhotonic Therapy™.

Dr. Jernigan was the first doctor to write a book on the natural treatment of people diagnosed with Lyme Disease and has now authored four books on Lyme Disease. The latest edition is Beating Lyme Disease; Living the Good Life in Spite of Lyme, 2nd edition.

Dr. Jernigan has personally developed over 30 novel natural medicines to date. As the founder of the American Medical Academy of Thermodiagnostics, he is one of the most experienced doctors in the U.S.A. in one of the latest FDA approved adjunctive diagnostic tests, Alfa and Computerized Regulation Thermodiagnostics.

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Dr. David R. Jowdy, D.C.

Dr. JowdyDr. Jowdy is a Licensed Doctor of Chiropractic and a graduate of Life University in Marietta, GA. He completed his undergraduate studies at Mohawk Valley Community College in Upstate NY, where he was also a member of the Varsity Baseball team that participated in the 1995 Division II Junior College World Series.

Dr. Jowdy believes that Optimum Health is a state where Mind, Body and Spirit are in balance and when this state is achieved, disease and dysfunction can disappear. True healing is a collaboration between doctor and patient where communication and education are the key to success. He takes great pride in educating his patients not only on how to achieve better health, but to keep themselves healthy in spite of the stresses that exist in our world today.

His path to join the healing arts was paved two generations prior by his grandfather, who was an Osteopath that spent a good part of his practice engaging in physical medicine and manipulation, as well as nutritional healing with vitamins and herbs.

His practice experience has taken him from Atlanta to Northern Virginia to St Kitts, always searching for new and innovative ways to improve the health and quality of life of his patients. Early on, in his first years of practice, he recognized that physical treatments alone were not allowing all of his patients to see the health benefits they desired, so he ventured out to train with leading doctors in the Wellness Industry that include Dr. John Brimhall, Dr. David Lee, Dr. Datis Karazhian, Dr. David Jernigan and Dr. Thomas Rau. Dr. Jowdy has spent upwards of 500 hours of continuing education to train in Biological Medicine, nutrition, wellness, detoxification, functional endocrinology and sports injuries. He holds three certifications with Brimhall Wellness and has assisted in their training seminars.

During Dr. Jowdy’s time at the Hansa Center, he has been able to advance many of the techniques and the science used, including advances in NeuroPhotonic Therapy and Allergy Desensitization and has assisted in training incoming doctors. He has also helped develop new treatment strategies and with Dr. Jernigan, conducts seminars in American Biological Medicine and BioResonance Scanning.


Dr. Aric D. Cox, D.C., FASA

Dr. Cox completed his undergraduate work at the University of Kansas with a Bachelor’s degree in anthropology. Dr. Cox received his doctorate and graduated with honors from Cleveland Chiropractic College. While pursuing his doctorate, Dr. Cox also received certification in acupuncture and Chiropractic Plus Kinesiology.

Dr. Cox believes that true health care involves educating and empowering his patients as well as understanding the source of the problem. He finds that the static disease model of modern medicine is insufficient to help patients fully actualize optimum health, and that true health comes from transforming the dynamic forces of the human body. For this, he sought out training and mentorship with leaders and pioneers in natural medicine. He holds advanced certification in BioResonance Scanning. Dr. Cox studied Biological Medicine with Dr. Thomas Rau, Medical Director of the prestigious Paracelsus Clinic in Lustmühle, Switzerland.

Since 8 of the top 10 causes of death in the US are directly related to poor nutrition, Dr. Cox is currently pursuing a certification in clinical nutrition. He understands that medicine must be personalized and is certified in Therapeutic Lifestyle Changes. Partnering with his patients to help them understand their own healing potential is what he looks forward to each and every day.

Dr. Cox has been a part of many public speaking engagements and radio shows on wellness awareness. He is a popular lecturer, blogger, and loves his role as educator to his patients.


Dr. Jonathan L. Streit, D.C.

Jonathan StreitDr. Streit graduated from Kansas State University where he studied chemistry and microbiology. Due to his exemplary classroom performance at K-State, he was selected to be on a research team studying microbial genetics. His work with this team led to the discovery of transgenic traits of E. Coli that are still in use to date. After graduation he went to work for an environmental testing firm as a chemist and microbiologist. His work was used by City Officials as well as the EPA for public safety.

Dr. Streit began chiropractic college after watching his wife’s health transform. Fully immersing himself in neurology, anatomy and complex biochemistry, he found his love for the miracle of the human body. He excelled and started using FDA cleared devices for stress reduction on patients at a nearby clinic. He was intrigued by its effects on the human body without using force. Graduating with honors from Cleveland Chiropractic, he quickly moved to Colorado and set up a private practice where he worked with everyone from Olympic athletes, to infants and expectant mothers, to military personnel. Because of his excellence in chiropractic, he was chosen to be the chiropractor for the LPGA tour in Colorado.

After seeing the effects of American Biological Medicine on his wife who was battling Lyme disease, Dr. Streit accepted an opportunity to train with Dr. Jernigan at the Hansa Center and ultimately became a chiropractic physician at the clinic. The position is a great fit due to his wealth of knowledge and experience utilizing nutrition, essential oils, herbs and lasers for years in his private practice.

The Hansa Center approach to health changed his paradigm. As a result, Dr. Streit has now studied with the world renowned Dr. Thomas Rau and is a Certified Biological Medicine Practitioner through the Paracelsus Clinic in Lustmuhle, Switzerland. Currently, Dr. Streit is studying with Dr. Carrick at the Carrick Institute of Graduate Studies to obtain Diplomate status in Functional Neurology. He has also studied with Dr. Arthur C. Croft, a prominent scientist in the field of brain injury traumatology and its effects.

The Hansa Center is the perfect place for Dr. Streit’s inquisitive mind and ability to innovate. During his time at the Hansa Center, Dr. Streit has created BRS modes, advanced the techniques of Neuro Cardio Synchronization and created a protocol for neurological testing. He is currently in the process of extrapolating work from Dr. Shoemakers mold toxin protocol to that of a natural medicine approach.


Dr. Martin C. Hart, D.C., NASM-CES

Dr. HartDr. Hart respects the human body and the human being. He recognizes that each health crisis extends to include the physical, mental, emotional, and spiritual level of each patient. This recognition has led to his unending education into health and well-being.

Dr. Hart earned a Doctorate in Chiropractic from Cleveland Chiropractic College in Kansas City, and a Bachelors of Science degree in Exercise Science. He has trained and studied in a vast array of disciplines including acupuncture, kinesiology, natural medicine, positive psychology, and many other fields.

He is a certified Corrective Exercise Specialist through the National Academy of Sports Medicine and holds advanced certification in BioResonance Scanning. His passion is to use his background and continued learning to help patients weave a story of healing and transformation.

From his time in strength training and rehab, to chronic illness and holistic health, Dr. Hart understands this journey is a partnership between doctor and patient. He takes a personal approach with each patient, using American Biological Medicine and BioResonance Scanning to help release dysfunctional patterns and restore optimal functioning of the human body.

With an extensive background, a thirst for expanding his knowledge, and a passion for working with patients, Dr. Hart is proud to be a Chiropractic Physician at the Hansa Center for Optimum Health.



Hansa Center remedies, nutritional products, and treatment modalities are intended to enhance overall body performance and are not intended or implied to diagnose, treat, prevent, or cure any specific illness. All remedies and nutritional supplements are only the doctor’s best recommendation and are at no time to be considered a prescription. Always consult with your health practitioner before beginning any treatment program, especially if pregnant or nursing. If you are having a medical emergency, please call 911 or go to nearest emergency room.
The information provided here is for educational purposes only and should not be considered medical advice. Hansa Center for Optimum Health, P.A. assumes no responsibility for how this information is used. We do our best to keep all information as current as possible, but medical information can change frequently.
“The ideal doctor is not a specialist in diseases, but one who understands disease, yet specializes in restoring what is optimum.” – Dr. David A. Jernigan