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The Endocrinology Clinics specialize in managing complex hormonal diseases. The members of our team have expertise caring for ambulatory patients with diabetes, lipid ("cholesterol") disorders, thyroid disease (benign and malignant), osteoporosis and disorders of other endocrine organs such as the pituitary, parathyroid and adrenal glands.
Our diabetes management team is made up of endocrinologists and specially trained diabetes nurse- educators and dietitians. We also support patients through a consultation team staffed (on a rotating basis) by an endocrinologist and medical residents.
DiabetesType 1, type 2 (not diabetes in pregnancy)
Thyroid diseaseThyroid cancer, hyperthyroidism, thyroid nodules, hypothyroidism
Parathyroid diseaseHyperparathyroidism, hypoparathyroidism
Pituitary diseasePituitary tumours, cushings disease, acromegaly, diabetes insipidus, hypopituitarism
Adrenal diseasesAdrenal tumours, hyperaldosteronism, pheochromocytoma, congenital adrenal hyperplasia, Addison's disease
Learn more about
what you can expect when you have a clinic appointment.
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Visit our Health Information section and find dedicated resources to help you understand your condition. Find the information you're looking for.
Our team has several endocrinologists and specially trained diabetes nurse educators and dieticians.
Interim Division Head:
Dr. Gary Lewis
Dr. Phillip SegalPhone: 416 340 5329Fax: 416 340 3314
Manager: Jacqueline Cooper
Dr. Satya DashClinic days: Monday pm, Thursday amPhone: 416 340 4800 ext. 8094
Dr. Diane Donat - Diabetes, general endocrinology (practice currently closed and not accepting new referrals)Phone: 416 340 3592Fax: 416 340 3314
Dr. Shereen EzzatPhone: 416 340 4800 ext. 3316
Dr. Karen Gomez Hernandez - Endocrine oncology, thyroid tumours, multiple endocrine neoplasia syndromes, pheochromocytoma/paraganglioma, pituitary and adrenal diseasesPhone: 416 586 4437Fax: 416 586 8861
Dr. Calvin Ke – Diabetes, obesity, thyroid disorders, and general endocrinologyPhone: 416 340 3298Fax: 416 340 3314
Dr. Gary Lewis - Type 2 diabetes and lipid disordersPhone: 416 340 4270Fax: 416 340 3314
Dr. Anna Sawka - Thyroid cancerPhone: 416 340 3678Fax: 416 340 3314
Dr. Phillip Segal - Thyroid cancer and thyroid disease, general endocrinologyPhone: 416 340 5329Fax: 416 340 3314
Dr. Rene Wong - General EndocrinologyPhone: 416 340 4053Fax: 416 340 3314
Dr. Minna Woo - Diabetes, Thyroid Disease and General EndocrinologyPhone: 416 340 5214Fax: 416 340 3314
Dr. Rowena Ridout - Disorders of bone metabolism, general endocrinology399 Bathurst StreetPhone: 416 603 6454Fax: 416 603 5518
Dr. Robert Silver - Diabetes, general endocrinologyPhone: 416 603 6453Fax: 416 603 7378
You will be contacted with information about your first appointment.
Please bring the following to your appointment. Not all of these items may be needed for your appointment. Our clinic or your referring doctor will let you know what you must bring.
Please arrive 15 minutes before your appointment.
When you arrive, you will sign in with the receptionist. You will need your health card (OHIP card) to sign-in. If you do not have an OHIP card, please bring another form of government-issued photo ID, such as a driver’s license or passport.
You may be given a Measuring Health Equity Questionnaire to fill out. This form contains questions about your background. We collect this information to find out who we serve and what unique needs you may have. The form is voluntary and you can choose ‘prefer not to answer’ to any or all questions. However, the information you choose to give us will help us improve the quality of care for you and others.
First appointments take longer than follow-up appointments. Your first appointment can take 2 hours or more. Follow-up appointments usually take 15 to 30 minutes. We do everything we can to stay on time but sometimes unforeseen circumstances may delay your appointment.
At the end of your first appointment, the nurse or doctor will give you a contact list for your health care team. If you don’t get a contact list, feel free to ask for it.
After every appointment, a member of your health care team will tell you about your next visit. Be sure you understand what is going to happen next. For example, know the time and place of your next visit or if someone will call you with this information.
If you are unsure about what your next steps are, don’t be afraid to ask a member of your team. We are here to help you.
We understand that reaching us by phone can sometimes be difficult. Often our phone lines are busy or are turned over to the message centre so our staff can prepare for clinic visits or help other patients. We make every effort to return your call within 24 hours. Our staff will try to reach you 2 times. If we are not able to reach you directly you may need to call us again.