
Tim Shannon, ND, DHANP
Tim graduated from USNY-Regents College with a BS in Psychology and Sociology. He completed his Doctorate of Naturopathic Medicine (ND) at National College of Naturopathic Medicine in Portland, OR in 2001. Tim studied extensively with Massimo Mangialavore MD for 5 years after completing his ND training.
For the past 20 years, Tim has had a busy practice in Oregon and Washington. His client base includes a wide variety of multimorbid conditions. After being introduced to Polarity Analysis by Swiss pediatrician Heiner Frei MD, Tim began to use it consistently. His clients experienced more reliable improvements. For the past 4 years, he has used PA exclusively.
As an educator, Tim has taught at NUNM Grand Rounds, and presented at AANP conferences. His published work includes articles in the Naturopathic Doctor News & Review, Simillimum, and other current journals..
As an effective clinician and thoughtful communicator, Tim brings a very full skillset as a Subject Matter Expert in Polarity Analysis.
Mike Knapp, ND, DHANP
Michael Knapp is a Naturopathic Physician practicing with advanced training in homeopathy and the foundational tools of naturopathy. His practice has an emphasis in the interconnection of digestive problems (dis-)stress, hormonal and immune system complaints that are often linked with gut-brain-microbiome imbalance. He attended the National University of Natural Medicine in Portland, Oregon. After graduation, Mike completed a one year teaching and clinical residency at the university. Mike began his study of Polarity Analysis with Tim Shannon in 2020.
As an educator, Mike teaches mindfulness meditation and has taught Insight Meditation at Coconino County Jail through the Exodus – Inmate Substance Abuse Treatment Program. He taught anatomy and physiology for 5 years at ASIS school of massage. Mike has also provided homeopathic and educational outreach at Flagstaff Shelter Services and at domestic violence shelters in Northern Arizona.
Mike shares his clinical experiences with PA as he presents concepts from Heiner’s text and research.


Dr. Devang Shah
Dr. Devang Shah, a homeopathic physician living in Mumbai. He graduated from Dhondumama Sathe (D.S.) Homeopathic Medical College in 2008 and completed his post-graduate studies in Organon of Homeopathy in 2012. He is deeply committed to enhancing my skills and knowledge. He traveled to Switzerland to learn Polarity Analysis directly from Dr. Heiner Frei. He is a teaching faculty member at The Other Song – International Academy of Advanced Homoeopathy in Mumbai. He enjoys helping students by sharing his straightforward approach to finding remedies.
Devang shares his experience with Polarity Analysis through cases that demonstrate clinical success in many therapeutic areas.
Karen Allen, LHP, CHP
Karen Allen is a graduate of Pacific Academy of Homeopathic Medicine (1994), and a Licensed Homeopathic Practitioner (LHP – Arizona). She is board certified in homeopathy by the North American Homeopathy Examiners . She has been in clinical practice since 1994, with a focus on women’s and endocrine health. Karen is the director of the Trinity Health HUB, an international virtual training portal that hosts trainings in Polarity Analysis.
Karen teaches about Boenninghausen and use of the Polarity Analysis software. She manages all business, coordination, accreditation and technical aspects of the Polarity Analysis training.
