Dr. Seang Lin Tan

Dr. Seang Lin Tan diagnoses and treats a wide range of hormonal and metabolic disorders, including:

Reproductive Health & Infertility (Endocrine Aspects)

• Hormonal Management of Transgender Individuals (Gender-Affirming Hormone Therapy): Prescription and monitoring of hormone therapy for transgender individuals as part of their gender affirmation process, often in a multidisciplinary setting.
• Amenorrhea (Absent Menstruation) & Oligomenorrhea (Infrequent Menstruation): Absence or infrequent occurrence of menstrual periods, which can be caused by a variety of hormonal imbalances affecting the hypothalamic-pituitary-ovarian axis.
• Male Infertility (Hormonal Causes, e.g., Hypogonadotropic Hypogonadism): Endocrine disorders contributing to male infertility, such as low testosterone production due to pituitary or testicular issues, affecting sperm production and function.

Bone Health & Mineral Metabolism Disorders

• Osteoporosis (Postmenopausal, Senile, Glucocorticoid-Induced): A progressive bone disease characterized by decreased bone mass and density, leading to an increased risk of fractures, particularly of the hip, spine, and wrist.
• 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.
• Paget's Disease of Bone: A chronic skeletal disorder that disrupts the normal bone remodeling process, resulting in bones that are enlarged, misshapen, and structurally unsound, leading to pain, deformities, and fractures.

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.
• Adrenal Nodules (Incidentalomas) & Adrenal Tumors (e.g., Pheochromocytoma, Aldosteronoma): Masses found on the adrenal glands, often discovered incidentally. Evaluation is needed to determine if they are hormonally active or potentially malignant.

This list is not exhaustive. For personalized advice regarding your specific endocrine condition, please consult with Dr. Seang Lin Tan.

• 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.
• 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.
• 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.

Note: This list provides a general overview. Specific tests and treatments are determined after a thorough evaluation. Discuss with Dr. Tan 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.

OriginElle Clinique de Fertilité is located in Montréal's Notre-Dame-de-Grâce (NDG) Central neighborhood, offering a welcoming environment for reproductive health care. The practice is conveniently situated near Decarie Square (Shopping) and major North-South expressways, facilitating easy access by car. Public transit options include Société de transport de Montréal (STM) services, including Métro and Bus routes, ensuring accessible transportation for patients. The facility is wheelchair accessible, providing barrier-free entry and facilities. Paid parking options are conveniently located nearby to accommodate patients arriving by private vehicle, ensuring a comfortable and accessible experience for all.

Are consultations, hormone tests, and treatments with Dr. Tan, an Reproductive Endocrinologist (Fertility Specialist), covered by Régie de l'assurance maladie du Québec (RAMQ) in QC?

Medically necessary consultations with a licensed Reproductive Endocrinologist (Fertility Specialist) like Dr. Tan, 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. Tan's office, the hospital/clinic, or Régie de l'assurance maladie du Québec (RAMQ) directly.

Is a referral required to see Dr. Tan, an Reproductive Endocrinologist (Fertility Specialist)?

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 Reproductive Endocrinologist (Fertility Specialist) such as Dr. Tan. 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 conditions does an Reproductive Endocrinologist (Fertility Specialist) like Dr. Tan typically treat?

An Reproductive Endocrinologist (Fertility Specialist) is a medical doctor who specializes in diagnosing and treating diseases related to the endocrine system, which is the network of glands that produce and release hormones. These hormones control many important body functions, including metabolism (how your body gets energy from foods), growth and development, sexual function and reproduction, sleep, and mood. He is a Reproductive Endocrinologist (Fertility Specialist), concentrating on hormonal issues related to fertility, pregnancy, and reproductive health. Dr. Tan manages conditions such as diabetes, thyroid diseases (hyperthyroidism, hypothyroidism, nodules), osteoporosis, adrenal gland disorders (like Cushing's or Addison's disease), pituitary gland disorders, parathyroid and calcium imbalances, polycystic ovary syndrome (PCOS), and some forms of hypertension or lipid disorders related to hormonal imbalances.

How does Dr. Tan typically approach managing diabetes (Type 1 or Type 2)?

Dr. Tan's approach to diabetes management is comprehensive and individualized. For Type 1 diabetes, the focus is on intensive insulin therapy (using multiple daily injections or an insulin pump), continuous glucose monitoring (CGM), carbohydrate counting, and education on managing blood sugar fluctuations and preventing hypoglycemia. For Type 2 diabetes, management often starts with lifestyle modifications (diet, exercise, weight loss), followed by oral medications if needed. Newer injectable medications (like GLP-1 receptor agonists or SGLT2 inhibitors) or insulin may be added as the disease progresses or if blood sugar targets aren't met. In both types, a key goal is to achieve optimal glycemic control (measured by HbA1c and glucose monitoring) while minimizing side effects and preventing long-term complications affecting the eyes, kidneys, nerves, and cardiovascular system. This often involves a multidisciplinary team approach.

What treatment options for osteoporosis might Dr. Tan discuss?

If you are diagnosed with osteoporosis, Dr. Tan 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.

OriginElle Clinique de Fertilité
101-2110 Boul Décarie
Montréal, QC H4A 3J3

Phone: (514) 369-0688 | Fax: (514) 369-0188

The facility is wheelchair accessible.

Dr. Tan is a licensed Reproductive Endocrinologist (Fertility Specialist) regulated by the Collège des médecins du Québec (CMQ) under the Medical Act in QC. A referral is typically required for consultations with Dr. Tan for services covered by the provincial health plan. Patients seeking fertility assessment may also be referred by their family physician or gynecologist.

Verify registration with the Collège des médecins du Québec (CMQ): https://www.cmq.org/en/directory/physicians?number=95009