Instructors - Annual License Renewal Seminar 2013

Listed in alphabetical order.


Alfred V. Anderson, MD, DC

Dr. Alfred V. Anderson is a pain management specialist and the medical director of the Realief Neuropathy Center in St. Louis Park, Minnesota. Dr. Anderson is past president and current member of the Minnesota Board of Medical Practice and a fellow of the Federation of State Medical Boards. He is also past president and currently serves on the Board of Directors for the American Academy of Pain Management. He is the author of multiple peer-reviewed articles and section editor of the seventh edition of Weiner's Pain Management: A Practical Guide for Clinicians.


Thomas F. Bergmann, DC, FICC

Dr. Thomas F. Bergmann, a 1977 graduate of National College of Chiropractic, is a professor at Northwestern Health Sciences University where he currently teaches methods in the College of Chiropractic. Previously, he taught at the International College of Chiropractic which is now RMIT School of Chiropractic in Melbourne, Australia.

Dr. Bergmann is the founding editor of the peer-reviewed journal Chiropractic Technique  and is on the editorial review board of Clinical Chiropractic. He has co-authored two textbooks, Chiropractic Technique Principles and Procedures and Mechanically Assisted Manipulation - The Distraction Techniques both by Mosby Publishing. He has also served as a consultant to Medicare and as a site team member for the the Council on Chiropractic Education.


Renée DeVries, DC, DABCR

Dr. Renée DeVries is a an associate professor at Northwestern Health Sciences University and is board-certified in chiropractic radiology. She served as the dean of the College of Chiropractic from 2010-2013. 

After graduating from Northwestern College of Chiropractic in 1989, Dr. Devries practiced in Black River Falls, WI. She returned to Norhwestern in 1993 to complete a 3-year residency in radiology. She spent 17 years teaching radiology and practicing in Northwestern’s Radiologic Consultation Services. She is currently pursuing a PhD in Organizational Leadership and Policy Development at the University of Minnesota.


Joseph S. Ferezy, DC, DACAN, FIACN

Dr. Joseph S. Ferezy, a 1982 graduate of Northwestern College of Chiropractic, has been training doctors of chiropractic in neurology for more than two decades. Dr. Ferezy is board certified in chiropractic neurology and a fellow of the International Academy of Chiropractic Neurology.

He is the author of a textbook, The Chiropractic Neurological Examination and has published many professional articles. He taught as an assistant professor at Northwestern College of Chiropractic and served as past president of the International Academy of Chiropractic Neurology. He maintains a private practice, the Ferezy Clinic of Chiropractic and Neurology, in Windsor Heights, Iowa.


Paul Ratté, ND

Paul Ratté, a naturopathic doctor, is an authority on functional medicine, a science-based health care approach that improves physiological function and restores health. He is a 1997 graduate of the National College of Naturopathic Medicine in Portland, Oregon. He is an assistant professor at Northwestern Health Sciences University where he teaches clinical nutrition to chiropractic, acupuncture and massage therapy students.

Ratté is also a practitioner at Rhythm of Health, Inc. in Woodbury, Minnesota, where he creates personalized wellness programs for his patients that prioritize their health concerns and reflect their commitment to change. He believes it is not enough to treat disease using natural medicine, aspiring instead to teach health using nutrition, resilience and physical activity.

He is a passionate proponent of integrated health care and has experience collaborating with medical professionals to provide the best care for his clients.

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