Dr. Eleni Vasilios Dimaraki – Endocrinologist | Toronto, ON

Dr. Eleni Vasilios Dimaraki, a Endocrinologist (Diabetes & Metabolism Focus), provides expert care for adult patients, and may also see older adolescents for certain endocrine conditions. With practice at an endocrinology clinic within a hospital department in Toronto, ON, she is a key member of the local medical community. Her practice is dedicated to the comprehensive management of hormonal and metabolic health, adhering strictly to the standards set by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Dimaraki’s role involves diagnosing and treating conditions related to Diabetes & Metabolism, ensuring patients receive personalized, evidence-based care.

She graduated with a Medical Degree from the University of Athens in Greece and has over 8 years of experience as an Endocrinologist (Diabetes & Metabolism Focus) since 2016. Her professional credentials include recognition as a CPSO Recognized Specialist by the College of Physicians and Surgeons of Ontario (CPSO). This certification underscores her expertise and adherence to rigorous provincial standards in endocrine care.

Dr. Dimaraki’s clinical philosophy emphasizes evidence-based hormonal and metabolic care, patient education on managing chronic conditions, early and accurate diagnosis, and the development of individualized treatment plans aimed at long-term well-being. She is committed to providing compassionate, comprehensive endocrine and metabolic health services to her patients in Toronto. Fluent in Greek and English, she strives to bridge language barriers and foster effective communication with her diverse patient population.

Dr. Eleni Dimaraki diagnoses and treats a wide range of hormonal and metabolic disorders, including:

Diabetes & Related Metabolic Disorders

• Monogenic Forms of Diabetes (e.g., MODY, Neonatal Diabetes): Rare types of diabetes caused by mutations in a single gene, differing from the more common Type 1 and Type 2 diabetes in presentation and management.
• Dyslipidemia (High Cholesterol, High Triglycerides, Low HDL): Abnormal levels of lipids (fats) in the blood, including elevated LDL ('bad') cholesterol, high triglycerides, or low HDL ('good') cholesterol, significantly increasing cardiovascular disease risk.
• Hypoglycemia (Low Blood Sugar - various causes): Abnormally low blood glucose levels, which can occur as a side effect of diabetes treatment (insulin or certain oral medications), or due to other underlying conditions like insulinoma or adrenal insufficiency.

Pituitary, Adrenal & Gonadal Axis Disorders

• Male Hypogonadism (Primary & Secondary Testosterone Deficiency): Condition in which the body doesn't produce enough testosterone, leading to symptoms like low libido, fatigue, muscle loss, and infertility. Can be due to testicular failure or pituitary/hypothalamic issues.
• Polycystic Ovary Syndrome (PCOS) - Endocrine Management: A common hormonal disorder among women of reproductive age, characterized by irregular periods, signs of androgen excess (e.g., hirsutism, acne), and polycystic ovaries on ultrasound, with associated metabolic risks.

Thyroid & Parathyroid Gland Disorders

• Thyroid Nodules & Multinodular Goiter: Solid or fluid-filled lumps (nodules) that form within the thyroid gland, or an enlarged thyroid gland with multiple nodules. Most are benign but require evaluation for cancer risk.
• Hyperthyroidism & Thyrotoxicosis (Overactive Thyroid - e.g., Graves' Disease, Toxic Adenoma, Toxic Multinodular Goiter): Condition where the thyroid gland produces excessive amounts of thyroid hormone, causing symptoms such as weight loss, rapid or irregular heartbeat, anxiety, tremors, and heat intolerance.
• Hypercalcemia & Hypocalcemia (Disorders of Calcium Metabolism): Evaluation and management of abnormally high or low levels of calcium in the blood, which can have various underlying endocrine or non-endocrine causes.

This list is not exhaustive. For personalized advice regarding your specific endocrine condition, please consult with Dr. Eleni Dimaraki.

• Inpatient & Outpatient Management of Endocrine Emergencies & Crises: Acute diagnosis and management of potentially life-threatening hormonal imbalances such as diabetic ketoacidosis (DKA), hyperglycemic hyperosmolar state (HHS), thyroid storm, myxedema coma, adrenal crisis, severe hypoglycemia, and acute hyper/hypocalcemia, typically initiated in an emergency or hospital setting with ongoing outpatient follow-up.
• Comprehensive Endocrine System Consultation & Hormonal Health Evaluation: In-depth clinical assessment of potential hormonal imbalances and disorders affecting the endocrine glands (e.g., thyroid, pituitary, adrenal, pancreas, parathyroid, gonads). Includes detailed medical history, family history review, targeted physical examination, analysis of symptoms, and formulation of a personalized diagnostic and management plan.
• Interpretation of Complex Hormonal Assays, Dynamic Endocrine Function Tests & Genetic Markers: Expert analysis and clinical correlation of specialized blood, urine, and saliva tests measuring various hormone levels. Includes interpretation of dynamic stimulation and suppression tests (e.g., ACTH stimulation, dexamethasone suppression, oral glucose tolerance test for acromegaly) to precisely evaluate endocrine gland function and identify genetic predispositions.
• Genetic Counseling Coordination & Testing for Hereditary Endocrine Neoplasia Syndromes & Familial Disorders: Risk assessment and coordination of genetic testing and counseling for individuals and families with suspected hereditary endocrine tumor syndromes (e.g., Multiple Endocrine Neoplasia - MEN1, MEN2; Von Hippel-Lindau), familial thyroid cancer, or other inherited endocrine conditions.
• Transitional Care for Young Adults with Chronic Endocrine Conditions: Facilitating the smooth transition of adolescents and young adults with lifelong endocrine disorders (e.g., Type 1 diabetes, congenital adrenal hyperplasia, hypopituitarism) from pediatric to adult endocrine care services.
• Expert Second Opinion Consultations for Complex or Rare Endocrine Disorders: Providing specialized second opinions on challenging endocrine diagnoses, interpretation of ambiguous hormone test results, or evaluation of complex or multi-faceted treatment plans.

Note: This list provides a general overview. Specific tests and treatments are determined after a thorough evaluation. Discuss with Dr. Dimaraki for care relevant to your specific condition.

All medical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant endocrinological care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.

Dr. Eleni Vasilios Dimaraki practices within an endocrinology clinic or hospital department located in Toronto’s University of Toronto, Harbord neighborhood. The facility is situated conveniently near the Distillery District and Cabbagetown, accessible by public transit via TTC (Subway, Streetcar, Bus). The location is wheelchair accessible, ensuring ease of access for all patients. Paid parking options are conveniently located nearby, providing flexible transportation choices for patients attending appointments.

Are consultations, hormone tests, and treatments with Dr. Dimaraki, an Endocrinologist (Diabetes & Metabolism Focus), covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations with a licensed Endocrinologist (Diabetes & Metabolism Focus) like Dr. Dimaraki, most standard diagnostic hormone blood tests, dynamic endocrine function tests when indicated, and treatments for provincially insured endocrine conditions (e.g., diabetes, thyroid disorders, adrenal insufficiency, osteoporosis management as per guidelines) are generally covered by Ontario Health Insurance Plan (OHIP) in ON when a referral from a family doctor or another specialist is in place. Some newer or specialized medications (e.g., certain advanced diabetes drugs, some growth hormone therapies, specific osteoporosis agents), medical devices (like some insulin pumps or continuous glucose monitors and their supplies), or treatments considered primarily for lifestyle or cosmetic reasons may have different coverage criteria or require special authorization. It's crucial to discuss coverage specifics for any proposed investigation or treatment with Dr. Dimaraki's office, the hospital/clinic, or Ontario Health Insurance Plan (OHIP) directly.

Is a referral required to see Dr. Dimaraki, an Endocrinologist (Diabetes & Metabolism Focus)?

Yes, for services covered by the provincial health plan, a referral from your family physician or another specialist (e.g., an internist, pediatrician, or gynecologist) is almost always required to schedule an appointment with an Endocrinologist (Diabetes & Metabolism Focus) such as Dr. Dimaraki. Endocrine system disorders often involve complex interactions and can have wide-ranging effects, so an initial assessment by your primary care provider helps determine if specialist care is needed and ensures that relevant preliminary tests and medical history are available to the endocrinologist. This facilitates a more focused and efficient consultation.

What treatment options for osteoporosis might Dr. Dimaraki discuss?

If you are diagnosed with osteoporosis, Dr. Dimaraki will discuss a management plan aimed at reducing your risk of fractures. This starts with lifestyle modifications, including ensuring adequate intake of calcium and vitamin D (through diet and/or supplements), engaging in regular weight-bearing and muscle-strengthening exercises, smoking cessation, and limiting alcohol intake. Fall prevention strategies are also important. If medication is indicated based on your bone density (DXA scan) and fracture risk assessment (e.g., using FRAX or CAROC tools), options include antiresorptive medications that slow bone loss (like bisphosphonates or denosumab) or anabolic agents that stimulate new bone formation (like teriparatide or romosozumab). She will help choose the most appropriate therapy based on your individual circumstances, potential side effects, and treatment goals.

Does Dr. Dimaraki deal with hormonal issues related to infertility or conditions like PCOS?

[If provider is Reproductive Endocrinologist (REI):] Yes, as a Reproductive Endocrinologist and Infertility specialist (REI), Dr. Dimaraki has advanced training in diagnosing and treating complex hormonal disorders that affect fertility and reproductive health in both women and men. This includes conditions like Polycystic Ovary Syndrome (PCOS), ovulatory dysfunction, endometriosis-related hormonal issues, premature ovarian insufficiency, male hypogonadism impacting fertility, and recurrent pregnancy loss. She can manage ovulation induction, provide hormonal support for assisted reproductive technologies like IVF, and address other intricate reproductive endocrine problems. [Else:] A general Endocrinologist (Diabetes & Metabolism Focus) like Dr. Dimaraki routinely manages common endocrine conditions that can impact reproductive health, such as thyroid disorders or prolactin imbalances, and can provide initial evaluation and management for Polycystic Ovary Syndrome (PCOS), including its metabolic and hormonal aspects. For complex infertility requiring assisted reproductive technologies (like IVF) or highly specialized reproductive surgeries, She would typically collaborate with or refer patients to a subspecialist in Reproductive Endocrinology and Infertility (REI).

76 Grenville Street
Toronto, ON M5S 1B2

Phone: (416) 323-6013 | Fax: (416) 323-6534

The facility is wheelchair accessible.

Dr. Dimaraki is a licensed Endocrinologist (Diabetes & Metabolism Focus) regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. A referral from a family physician or appropriate specialist is typically required for consultations with Dr. Dimaraki for services covered by the provincial health plan.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Dimaraki-Eleni-Vasilios/0308695-108918