QN Practitioner Profiles

Dr. Katinka van der Merwe, D.C., QNCP, grew up in South Africa in a chiropractic family. She received her Doctor of Chiropractic degree from Parker College of chiropractic in 1999. Upon graduation, she studied cutting edge techniques that would allow her to treat the chronically and acutely ill without any hope. She has expanded her treatment expertise with course work in functional medicine and neurology, Quantum Neurology(TM) nerve rehabilitation, NRCT, Bio Energetic Synchronization Technique, as well as nutrition. Dr. Katinka lectures extensively to the public. She is a member of The Foundation for Wellness Professionals, a non- profit organization dedicated to informing the public about health alternatives. She also lectures to other health care physicians from across the country.Dr. Katinka sees patients from all over the US at her Fayetteville, AR. clinic. She chose Northwest Arkansas for it’s natural beauty and expanding growth (it is where Walmart’s headquarters are located.) She is one of only four doctors in the world whom have trained in both the NRCT and Quantum Neurology (TM) techniques.
Dr. James Sheen, D.C., QNCP, a Kearney NE native, is a 1993 graduate of Palmer College of Chiropractic in Davenport, IA. He has been practicing in the Kearney and Lexington NE area since graduation and is a long -time member of the Nebraska Chiropractic Physicians Association. Dr. Sheen attended his first Quantum Neurology seminar in January 2006 and received his QN certification on July 2008.  Developing the applications of Quantum Neurology techniques has become his passion. This includes, but is not limited to Scar Tissue, Elemental Allergy Protocol, Auto Immune Conditions and Taste Integration.In December 2010 and April 2011, Dr. Sheen had the honor of presenting on the Elemental Allergy Protocol at the Quantum Neurology seminars in Los Angeles, CA. He also went on to present the Application of Taste to the Nervous System at the Fall 2011 QN Symposium. He has also attended many other seminars throughout the Midwest and US to further his education.
Dr. James Sheen currently resides in the country with his wife, three children, and many farm animals his favorite being the chickens. His hobbies include collector cars and tractors, helping his dad farm, and expanding his knowledge through reading, research, and application.


Quantum Neurology™ is a system of Neurological Rehabilitation. The doctors below have submitted research to document and validate what is possible with Neurological Rehabilitation. It is important to remember that each patient and their injuries, illnesses or conditions are unique. This work is designed to strengthen the neurological weaknesses that are unique to each patient. It is our belief that strengthening neurological weaknesses allows the body to heal itself. Even though your injury, illness or condition may be similar to those documented in a case study, there is no way to predict or guarantee how you or anyone else will respond to neurological rehabilitation.

Dr. Mark Trell, DC, QNCP

Dr. Edward Chauvin, DC, QNCP

First Group of Quantum Neurology™ Certified Practitioners- Dec, 2007