About Us

Dr. Kathleen Mercer was born and raised in St. John’s, Newfoundland. After receiving her first Bachelor of Science Degree at Memorial University of Newfoundland, she moved to Asia to teach English and travel. During this time she became interested in Chinese Medicine and decided to return to Canada and further her studies in Naturopathic Medicine.


Already having chosen Medicine as a life path, Dr. Mercer felt Naturopathic Medicine encompassed principles of health care that complement conventional medicine including; prevention, do no harm, doctor as teacher, stimulate the body’s own vital force to do the healing, healing power of nature, patient as an individual and finding and treating the root cause of disease.


Dr. Mercer graduated in 2000 from the Canadian College of Naturopathic Medicine (CCNM).  She held a successful and busy practice in Orangeville, ON for 3 years. She returned to Newfoundland with her family to practice Naturopathic Medicine on the island.


Dr. Mercer’s agenda incorporates many outreach projects to the public including talks, seminars, and community events.

Dr. Tanya O’Brien is a Naturopathic Doctor who graduated in 2008 from the Canadian College of Naturopathic Medicine (CCNM), an accredited medical school that offers four years of formal studies in Naturopathic Medicine. She received her Bachelor of Science degree in Nutrition from St. Francis Xavier University where she first discovered her passion for health and healing.


Following her graduation from St. FX, Dr. O'Brien worked as a Clinical Dietetic Assistant at Cambridge Memorial Hospital. She also worked as a nutritionist at a Traditional Chinese Medicine Clinic. It was here that she realized there was still a lot more she wanted to learn in the field of natural medicine, so she furthered her studies at CCNM.


Dr. O'Brien's primary interest is to help empower others to heal themselves. Her approach to health care is very holistic, considering all aspects of an individual’s health, life style, and nutrition. Her clinic experience includes working with a diverse patient base and treating a multitude of physical and mental ailments.


Upon returning to her roots in St. John’s, Dr. O’Brien began her private practice with a special interest in Women’s Health, Pediatric Care, Nutrition and Acupuncture. She looks forward to helping the local community in finding their ability to heal themselves through a natural and holistic approach.