Dr. Louis-Georges Ste-Marie – Endocrinologist | Montréal, QC

Dr. Louis-Georges Ste-Marie, a Endocrinologist (Diabetes & Metabolism Focus), provides expert care for adult patients, and may also see older adolescents for certain endocrine conditions. With conditions related to Diabetes & Metabolism, he practices at the Clinique d'endocrinologie de Montréal in Montréal, QC. He is a key member of the local medical community, adhering to the high standards set by the Collège des médecins du Québec (CMQ). His practice primarily centers on the comprehensive management of type 1 and type 2 diabetes, metabolic syndrome, and lipid disorders. The clinic is dedicated to delivering thorough hormonal and metabolic health care, utilizing advanced diagnostics and personalized treatment strategies to support long-term well-being.

Dr. Ste-Marie holds a Medical Degree from a recognized institution and brings over 44 years of experience practicing as an Endocrinologist (Diabetes & Metabolism Focus) since 1980. He has completed extensive postgraduate training and holds all necessary certifications to practice in Quebec, including the credentials required by the Collège des médecins du Québec (CMQ). His expertise is grounded in a comprehensive understanding of hormonal and metabolic disorders, ensuring patients receive accurate diagnoses and effective treatment plans.

Guided by a commitment to evidence-based endocrine and metabolic care, Dr. Ste-Marie emphasizes patient education, early diagnosis, and individualized treatment approaches. He is dedicated to supporting his patients in Montréal through clear communication, compassionate care, and a focus on optimizing long-term health outcomes. He speaks French fluently and is committed to providing accessible, high-quality endocrine services tailored to each patient's unique needs.

Dr. Louis-Georges Ste-Marie diagnoses and treats a wide range of hormonal and metabolic disorders, including:

Diabetes & Related Metabolic Disorders

• Type 2 Diabetes Mellitus (T2DM): A progressive condition characterized by insulin resistance (where the body's cells don't respond effectively to insulin) and/or relative insulin deficiency, often linked to genetics, lifestyle factors, and obesity.
• Gestational Diabetes Mellitus (GDM): Diabetes diagnosed during pregnancy that was not clearly overt diabetes prior to gestation, requiring careful management to ensure healthy outcomes for both mother and baby.
• 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.

Thyroid & Parathyroid Gland Disorders

• 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.

Bone Health & Mineral Metabolism Disorders

• Osteopenia (Low Bone Mass): A condition where bone mineral density is lower than normal peak density but not yet low enough to be classified as osteoporosis. It indicates an increased risk for developing osteoporosis.
• Disorders of Phosphate Homeostasis (Hypophosphatemia, Hyperphosphatemia): Imbalances in blood phosphate levels, which can be caused by various underlying conditions and affect bone health, muscle function, and energy metabolism.
• Vitamin D Deficiency and Insufficiency: Inadequate levels of vitamin D, which is essential for calcium absorption and bone mineralization, leading to potential bone pain, muscle weakness, and increased fracture risk.

This list is not exhaustive. For personalized advice regarding your specific endocrine condition, please consult with Dr. Louis-Georges Ste-Marie.

• 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.
• 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.
• 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.
• 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.
• 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.
• 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. Ste-Marie for care relevant to your specific condition.

All medical services are provided in accordance with the standards of practice set by the Collège des médecins du Québec (CMQ) and relevant endocrinological care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.

Clinique d'endocrinologie de Montréal is situated in the vibrant Ville-Marie East (Quartier Latin, Village) neighbourhood of Montréal. The practice is conveniently accessible via the Olympic Park Area and Hochelaga-Maisonneuve District, with excellent public transit options including the Société de transport de Montréal (STM) (Métro, Bus). The facility is wheelchair accessible to accommodate all patients. Parking is available at or near the facility, ensuring easy access for those arriving by car. The location offers a welcoming environment for patients seeking expert endocrine care in Montréal.

Are consultations, hormone tests, and treatments with Dr. Ste-Marie, an Endocrinologist (Diabetes & Metabolism Focus), covered by Régie de l'assurance maladie du Québec (RAMQ) in QC?

Medically necessary consultations with a licensed Endocrinologist (Diabetes & Metabolism Focus) like Dr. Ste-Marie, 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 Régie de l'assurance maladie du Québec (RAMQ) in QC 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. Ste-Marie's office, the hospital/clinic, or Régie de l'assurance maladie du Québec (RAMQ) directly.

Is a referral required to see Dr. Ste-Marie, 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. Ste-Marie. 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. Ste-Marie discuss?

If you are diagnosed with osteoporosis, Dr. Ste-Marie 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). He will help choose the most appropriate therapy based on your individual circumstances, potential side effects, and treatment goals.

Does Dr. Ste-Marie deal with hormonal issues related to infertility or conditions like PCOS?

As a general Endocrinologist (Diabetes & Metabolism Focus), Dr. Ste-Marie 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, he would typically collaborate with or refer patients to a subspecialist in Reproductive Endocrinology and Infertility (REI).

I have a thyroid nodule. What can I expect during an evaluation with an Endocrinologist like Dr. {provider_name_doctor_last}?

When evaluating a thyroid nodule, an Endocrinologist like Dr. Dr. Ste-Marie will conduct a thorough assessment. This typically involves reviewing your medical history (including any symptoms of thyroid dysfunction or family history of thyroid disease), performing a physical examination of your neck and thyroid gland, and ordering blood tests to check your thyroid function (TSH, and possibly free T4, T3, and thyroid antibodies). A thyroid ultrasound is almost always performed to precisely characterize the nodule's size, number, and sonographic features (e.g., solid, cystic, calcifications, irregular margins). Based on these ultrasound characteristics and the nodule's size, Dr. Dr. Ste-Marie will determine if a fine-needle aspiration (FNA) biopsy is needed to obtain cells for microscopic examination to rule out thyroid cancer. Most thyroid nodules are benign.

Clinique d'endocrinologie de Montréal
1029 rue Saint-Denis
Montréal, QC H2X 3H9

Phone: (514) 866-3681 | Fax: (514) 874-4078

The facility is wheelchair accessible.

Dr. Ste-Marie is a licensed Endocrinologist (Diabetes & Metabolism Focus) regulated by the Collège des médecins du Québec (CMQ) under the Medical Act in QC. A referral from a family physician or appropriate specialist is typically required for consultations with Dr. Ste-Marie for services covered by the provincial health plan.

Verify registration with the Collège des médecins du Québec (CMQ): https://www.cmq.org/en/directory/physicians?number=77327