Nature Medicine Clinic

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Our Values in Healthcare

Dr. Michael A. Prytula ND, PSc.D and Dr. Mike Um ND, HBSc, Psc.D are provincially licensed by the Board of Directors of Drugless Therapists/ Naturopathy (College of Naturopaths of Ontario) to provide conventional Naturopathic health care services and are also licensed by the Pastoral Medical Association to provide more extensive natural health services and therapies to registered members of the Member Share Network.

Our clinic was founded in 1988 by Dr. Michael A. Prytula ND. D.PSc. and is aspiring to be one of North America’s most advanced naturopathic facilities and have over 40 years of experience with our team of medical professionals.

At Nature Medicine our mission is to provide the structure for the healing of patients, by optimizing their health and treating disease. We educate our patients and individualize the treatment process by eliminating disease-causing factors by using current medical therapies and complimentary therapies that have been proven to be effective throughout the world and throughout time.

At Nature Medicine – we believe that our patients have the right to determine and use the safest and most cost effective methods of healthcare – and we fight for that right to use many therapies that are not sanctioned by the Ontario Ministry of Health. Dr. Prytula ND, Dr. Um ND and their lawyers fought a ten year legal battle with their licensing board to allow their staff to administer IV ozone and IV chelation to the patients of Nature Medicine.

Dr. Prytula ND, Dr. Um ND and their lawyers also fought a four year legal battle with the College of Nurses for our registered nurses to administer your IV’s under the direction of a Naturopathic Doctor. Unfortunately we lost that case, so under Ontario law, we can hire and train anyone to administer IV’s – we just cannot have a nurse accomplish this task. Is this really serving the public interest?

Dr. Prytula ND, Dr. Um ND and the staff at Nature Medicine are educators of choice for IV therapies (IV Ozone, IV Chelation, IV Basics and Emergency Procedures Courses) and are endorsed by government agencies and professional associations in BC, Alberta, Saskatchewan, Manitoba, and Nova Scotia in Canada. In the US, the state of Arizona and other states that have jurisdictional reciprocity.

IV ozone, IV chelation and other advanced therapies that are commonly found in the world famous exclusive Swiss medical clinics,  were deemed to be a threat to the Ontario Public in spite of Dr. Prytula’s ND teaching has been approved in almost all licensed Naturopathic jurisdictions in Canada except Ontario.

In order to offer you these services,  we have partnered with the Pastoral Medical Association; an association that will allow us to expand our services, while maintaining current services, under the Canadian Charter of Rights and Freedoms.

By using our Doctor of Pastoral Science and Medicine licence, as well as our Naturopathic Doctor licenses on a more routine basis, more of the practice will fall under the authority of the Pastoral Medical Association. This will not mean a change in our services but a change in the way we offer our services to the public.

Here is a list of PMA member services that we offer:

  • IV therapeutics
  • Injection therapeutics
  • Lab tests
  • Prescriptions of substances not on Schedule 1 on the website.

To receive these services you will need to become a member of the Pastoral Medical Association. Registration is free of charge and if you have any questions regarding the Association, please feel free to ask any of the staff at Nature Medicine or go to

Conventional Naturopathic Medical and Pastoral Medical Services (PMA) are completely separate services and each is provided in strict compliance with the rules and regulations set forth by the separate licensing agencies. If you wish to receive PMA services you must first register to become a member. Member registration is free and membership forms are available at our clinic at  296 Welland Avenue, St. Catharines Ontario. Note that if you have a complaint about our services you must direct complaints to the appropriate licensing board. For complaints regarding any provincially licensed services contact the provincial Naturopathic Medical board. Complaints regarding PMA natural health services must be directed to the Pastoral Medical Association.