Endocrinology and Diabetes Menu

Thyroid Program

The Thyroid Program takes a multidisciplinary approach to the treatment of various thyroid diseases. Patients with different thyroid and parathyroid conditions are assessed, this includes: thyroid dysfunction (under or over active), thyroid nodules, thyroid cancer, parathyroid dysfunction and other conditions. Our team consists of physician and surgical specialists and clinical nurse specialists; we strive to provide you with a one-stop-shop for all of your thyroid needs at Women’s College Hospital.

  • Your Care

    Welcome to the Thyroid Program!

    This program offers a multidisciplinary, integrated approach for patients with various thyroid and parathyroid diseases.

    Our Clinic

    The Thyroid Program is unique at Women’s College Hospital as our endocrine and surgical teams work closely to coordinate your care. Additionally, we do all diagnostic testing at the hospital, including ultrasounds and biopsies. We work as a team to manage thyroid conditions with a multidisciplinary approach, thriving to reach the goal of being a one-stop-shop centre.

    Pre-visit Requirements

    Once a complete referral including recent blood test and relevant imaging has been received, you will be notified of an appointment date and time by a member of our administrative staff.

    What to Expect

    We would ask that you plan to arrive at least 10-15 minutes before your scheduled appointment time so that we can complete your registration.

    Please remember to bring your Ontario Health Card with you to this appointment and a list of your medications including any vitamin or mineral supplements and herbal remedies. Please Note: If you do not have a valid Ontario Health Card, you will be required to pay directly for the clinical service(s) provided at the time of your visit. Details are available from any of our program secretaries.

    The appointment is about 45-60 minutes. You may be asked to complete some blood work at the end of your appointment. These tests can be done at the hospital right after your appointment (usually there is no preparation for these tests).

    If you are unable to keep your appointment, please notify the program scheduling secretary at 416-323-6400 ext. 4874 to cancel and/or re-schedule your appointment at least 2 business days prior to your appointment. Cancellation fees will be applied if above procedures are not followed.

  • Our Team

    The Thyroid Program team members include:

    Physician Specialists (Endocrinologist)
    Physician Specialist (Endocrinologist): The Endocrinologists specialize in the treatment of hormone imbalances to help restore the normal levels of hormones in the body, specific to the thyroid and parathyroid glands.

    Dr. Afshan Zahedi, BASc, MD

     Assistant Professor of Medicine at the University of Toronto

    She is the Division Head of Endocrinology, Women’s College Hospital with cross appointment to Division of Endocrinology UHN/MSH. Dr. Zahedi is a clinician teacher and is involved in both undergraduate and postgraduate education at the Faculty of Medicine. She has been the recipient of several education awards. Her research focuses on Quality Improvement with a multidisciplinary approach to delivery of health care. She is currently the Medical Director of the Thyroid Program at Women’s College Hospital and focuses on implementing multidisciplinary (surgical and medical) team approach to Thyroid cancer. Other research includes impact of continuing education for primary care and allied health professionals to improve outcomes for chronic disease management including diabetes in geriatric populations.

    Dr. Catherine Kelly, MD, MSc, FRCPC

    Clinical Educator and a Professor of Medicine at the University of Toronto

    She is the former Division Head of Endocrinology at Women’s College Hospital, and the former U of T Endocrine Postgraduate Program Director from 1999 to 2007. She is the Peters Boyd Academy Director for the academic year 2009/2010 and is site director of the PB Academy at WCH since 2007-2013. She is a faculty member of the Institute for Healthcare Communication and is the University DOM Champion for the Communicator role. She has expertise in implementing Lean Management processes into clinical settings. Her clinical interest is in thyroid disease and she has created a Thyroid Cancer Program at WCH. She has won several teaching awards

    Physician specialist (Endocrine Surgeon)
    The Endocrine Surgeon specializes in the treatment of thyroid and parathyroid disorders.

    Dr. Karen Devon, MD, MSc, FRCSC, FACS

     Assistant Professor of Surgery, Division of General Surgery, University of Toronto

    She is an endocrine surgeon at Women’s College Hospital and the University Health Network (Toronto General Hospital). Her clinical expertise is in thyroid surgery, parathyroid surgery and adrenal surgery. She received specialized training in Endocrine Surgery at the University of Chicago and she is a member of the American Association of Endocrine Surgeons. She has brought new technologies and innovation to our program, including the introduction of the use of intra-operative PTH and focused parathyroid surgery at WCH. She is extensively involved in teaching at undergraduate and post-graduate levels and leads the Endocrine Surgery Journal Club. She also sits on the Cancer Care Ontario Thyroid Cancer Working group. Her research interests are primarily in the domain of medical ethics and she is the Director of the WCH Surgical Ethics Program.

    Clinical Nurse Specialist
    The surgical Nurse team focuses on counseling, therapy plans, planning for surgery, and assisting with procedures.

    Program Administrator
    The program administrator schedules future tests, coordinates care, and follow up with patients.

  • Tests

    The thyroid program offers the following specialized diagnostic tests on site:

    • Iodine scan: measures how much iodine tracer is absorbed by the thyroid gland.
    • Parathyroid scans: to test the function of the parathyroid.
    • Radioactive iodine treatment: used for overactive thyroid or thyroid cancer.
    • Thyroid biopsy: a procedure in which a small sample of tissue is removed from the thyroid gland and examined under a microscope
    • Thyroid scan: to test the function of the thyroid
    • Thyroid ultrasound: to assess the size and shape of nodules
  • Patient Resources

    There are many resources available for both patients and health care professionals. The following are websites that will provide the answers to many questions you may have about thyroid conditions and care:

    Associations & Groups


    Please fax your referral to the Thyroid Program at 416-323-2669

    Patient Referral Form (.pdf) - FOR PHYSICIANS ONLY -

Fully affiliated with

A member of