NATUROPATHIC DOCTOR IN ONTARIO

Dr. Mariia Tanasyshyn ND

Dr. Mariia Tanasyshyn ND | she/her

Naturopathic Doctor with a comprehensive family medical practice addressing health needs of all types.

Dr. Mariia Tanasyshyn, ND, is a licensed Naturopathic Doctor in Ontario with a rare and valuable dual background. Before completing her naturopathic medical training at the Canadian College of Naturopathic Medicine, Dr. Mariia earned her Doctor of Medicine (MD) degree in Ukraine, where she trained extensively in internal medicine. Although she is not practicing as a medical doctor in Ontario, her medical education provides a deep understanding of complex health conditions and allows her to interpret symptoms, labs, and diagnoses through a uniquely integrative lens.

Now fully licensed as a naturopathic doctor (ND) under the College of Naturopaths of Ontario (CONO), she offers evidence-informed, patient-centered care that blends the strengths of both medical and naturopathic approaches. Her visits are not covered by OHIP, but may be reimbursed through extended health insurance like other naturopathic services.

Dr. Mariia is passionate about helping patients feel heard, informed, and empowered. She prioritizes clear communication, shared decision-making, and creating personalized treatment plans that meet her patients where they are.

Patients often seek out Dr. Mariia when they are looking for health care answers and support. These patients often don’t have access to a family doctor, or they are receiving inadequate care from their GP. 

Fluent in English, Ukrainian, and Polish, Dr. Mariia is committed to accessible, compassionate care for individuals and families across Ontario through secure virtual visits.

Areas of Clinical Focus

Women’s Health & Hormones
  • PMS, PMDD, irregular cycles

  • Perimenopause & menopause support

  • Hormonal acne and hair changes

  • Fertility optimization & cycle tracking

  • Thyroid & adrenal (stress) health

Men’s Health
  • Energy, mood, stress, and sleep

  • Testosterone support (within ND scope)

  • Metabolic health and weight changes

  • Digestive health and gut symptoms

  • Cholesterol, blood pressure, and cardiovascular wellness

Stress, Mood & Nervous System
  • Burnout and chronic stress

  • Anxiety, low mood, irritability

  • Sleep disturbances

  • Cognitive fog and mental fatigue

Autoimmunity & Immune Health
  • Hashimoto’s thyroiditis

  • Rheumatoid arthritis

  • Psoriasis, eczema, and autoimmune skin conditions

  • Chronic inflammation and flare management

Digestive Health
  • IBS (constipation, diarrhea, mixed)

  • SIBO (hydrogen, methane, hydrogen sulfide)

  • Bloating, gas, nausea, indigestion

  • Reflux/GERD

  • Food intolerances and malabsorption

  • Gut–skin and gut–hormone connections

Metabolic & Thyroid Support
  • Hashimoto’s

  • Hypothyroidism / hyperthyroidism

  • Insulin resistance & A1C support

  • Weight changes & metabolic optimization

  • Fatigue of unknown origin

General Health & Preventative Care
  • Nutrient deficiencies (iron, B12, vitamin D, etc.)

  • Cardiovascular and metabolic screening

  • Lab interpretation & root cause analysis

  • Lifestyle medicine and long-term health planning

Your Doctor: Meet Dr. Mariia

Outside of the clinic, Dr. Mariia is guided by a deep curiosity about lifelong learning and the ways culture, daily habits, and personal rituals shape our well-being. She loves noticing how small routines—like a morning walk or a shared conversation—can shift how we feel. She’s also inspired by the way people create meaning through their daily lives, and how those moments influence overall health.

Nature is one of her favorite places to recharge. You’ll often find her hiking, walking along the water, or tending to her ever-growing collection of houseplants. One of her proudest plant-moments was growing an avocado tree from a single seed—an experience that reflects her clinical philosophy: when you understand the root of something and give it the right conditions, meaningful growth becomes possible.

Fluent in English, Ukrainian, and Polish, Dr. Mariia values connection and community. She cherishes time with family and friends, seeks out local cafés, and enjoys discovering new places across Ontario.

At her core, Dr. Mariia is motivated by a genuine commitment to helping people feel understood, supported, and empowered in their health. This belief shapes not only her clinical approach but also the way she moves through her everyday life.

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FREE CHAT

On the fence about booking an initial appointment? We offer a free 10-minute video chat to help determine if we are a good fit and can effectively help.

Get more clarity on how we practice and how we can become your personal health investigators to get you feeling well again.