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Call this number from Monday to Friday, 8:30am to 4:30pm:
Gamma Knife Centre at Toronto Western Hospital

Phone: 416 603 5445

Call one of these numbers on evenings, weekend and holidays:
Neurosurgeon on-call (ask for the neurosurgeon on-call)

Phone: 416 340 3155

Radiation oncologist on-call (ask for the radiation oncologist on-call)

Phone: 416 946 2000

Who do I call if I experience complications? 

Call 911 to take you to the nearest Emergency Department if you:

  • Have chest pain, tightness, or shortness of breath
  • Have "the worst headache of your life" that does not go away by taking pain medication

Call your surgeon's office  if you notice the following symptoms:

  • Your incision is red, warm to the touch or has discharge or a bad smelling odour
  • You have a fever (a temperature of 38°Celsius or higher for 2 days)
  • You have pain that is not relieved by your pain medication
  • You have a sharp pain or tenderness in the back of your calf or numbness and tingling to your foot

Who do I call with general post-operative questions?
  • Your surgeon's office is the first place to call with general post-operative questions.


To make or change appointments, call your surgeon's office.

  • Dr. Mark Bernstein
    Phone: 416 603 6499
  • Dr. Mojgan Hodaie
    Phone: 416 603 6441
  • Dr. Suneil K. Kalia
    Phone: 416 603 5866
  • Dr. Paul Kongkham
    Phone: 416 603 5428
  • Dr. Andres Lozano
    Phone: 416 603 6200
  • Dr. Ivan Radovanovic
    Phone: 416 603-5800 ext. 620
  • Dr. Gelareh Zadeh
    Phone: 416 603 5679

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