Dr. 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 Kathleen 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, Kathleen felt Naturopathic Medicine encompassed principles of health care that could complement conventional medicine including; prevention, do no harm, doctor as teacher, stimulate the bodies own vital force to do the healing, healing power of nature, patient as an individual, finding and treating the root cause of disease.

Kathleen graduated in 2000 from the Canadian College of Naturopathic Medicine after 4 years of Naturopathic Medical Training. She held a successful and busy Practice in Orangeville Ontario for 3 years. Kathleen returned to Newfoundland in 2004 to become the first licensed Naturopathic Doctor on the island. Kathleen holds a Practice in St. John’s.

Kathleen has also been trained as a Doula and works as a birth support partner combining her Naturopathic training and her Doula training. Kathleen works with patients going through fertility support. Kathleen has been trained in Cranio-Sacral Therapy and incorporates it into her practice. Kathleen is a Yoga Teacher and obtained her Yoga Teacher’s qualifications with The Yoga Connection Teacher Training Course in Ontario. Kathleen sees Yoga as a healing art that goes hand in hand with Naturopathic principles.

Kathleen’s practice is a general practice seeing patients of all ages and circumstances.   The modalities of Naturopathic Medicine include nutrition, botanical medicine, homeopathy, Chinese medicine and acupuncture, hydrotherapy, and lifestyle counselling.   Kathleen’s agenda incorporates many outreach projects to the public including talks, seminars, and community events.


Dr. O’Brien is a Doctor of Naturopathic Medicine who graduated in 2008 from the Canadian College of Naturopathic Medicine (CCNM), one of six accredited medical schools in North America offering four-years of formal studies in Naturopathic Medicine.  She received her Bachelor of Science degree in Nutrition from St. Francis Xavier University where she discovered her passion for health and healing. Prior to CCNM, she worked with a Chinese Medicine Doctor as a nutritionist in Ontario where she learned the importance of helping people heal themselves. Her approach to health care is empowering and holistic. Beyond her training at CCNM, Dr. O’Brien has a clinical background working as a nutritionist. In practice she has worked with a diverse patient base, treating a multitude of physical and mental ailments.  Upon returning to her roots in St. John’s, Dr. O’Brien began her practice in complementary medicine with a special interest in Women’s Health, Pediatric Care, Acupuncture and Herbal Medicine.




Dr. Stacy Smith is a clinical psychologist who obtained her PsyD from Memorial University in 2016. In therapy she uses an approach that balances reflection and action – helping clients build insight and understanding while also taking practical steps towards a valued life. She is integrative and draws on techniques from cognitive behaviour therapy (CBT), acceptance and commitment therapy (ACT), emotion-focused therapy, and psychodynamic/interpersonal therapy. Dr. Smith sees individuals with diverse backgrounds and needs. Some of her main areas of focus include self-esteem, anxiety, stress, mood, OCD, gender, sexuality, relationships, interpersonal, existential, adjustment, and childhood trauma, among others.


Dr. Ashli Hayes is a clinical psychologist who obtained her PsyD from Memorial University in 2017. She uses a client-centered approach to therapy, in which the treatment approach is tailored to each client’s needs and preferences. She uses an integrative approach, drawing mainly on psychodynamic and emotion-focused therapies, integrating cognitive behaviour therapy (CBT), dialectical behaviour therapy (DBT) and acceptance and commitment therapy (ACT) interventions as needed. Dr. Hayes works with individuals with diverse backgrounds and needs. Some of her main areas of focus include eating disorders, body image, anxiety, mood, personality, gender, sexuality, adjustment, relationship and interpersonal difficulties, emotion regulation and childhood trauma, among others.

Naturopathic Doctors

  • Dr. Kathleen Mercer
  • Dr. Tanya O’Brien



  • Dr. Stacy Smith
  • Dr. Ashli Hayes