ALERT: As a result of flooding at St. Joseph’s Health Centre, some MRI and Nuclear Medicine patient appointments are being rescheduled for today, Wednesday, Oct. 1. The St. Joseph’s team will call patients whose appointments need to be rescheduled. Thank you for your understanding and patience.

Mark Alexander Fisher

Cardiologist

Accepting Patients

416-766-1162

416-766-0463

mark.fisher@unityhealth.to

https://riversideclinic.ca

Office Address

5 Junction Rd.
Toronto, ON M6N 1B5

Department: Medicine,

Division: Cardiology,

Language: English,

Speciality: Cardiology - both noninvasive and invasive,

Location: St. Joseph's Health Centre,

Pronouns: He/him

Faculty Appointment: Lecturer - University of Toronto

Clinical Interests: CHF, echocardiography, cardiac catheterization

Academic Interests: Teaching of residents and medical students, St. Joseph's STEMI program

Referrals

For Riverside office referrals- fax to office

For Hospital cardiology clinic, fax to 416-530-6702

https://riversideclinic.ca

Biography

Full time Cardiologist at St. Joseph’s since 1998
Performing cardiac catheterization at St. Michael’s as well
Former Head of Cardiology at St. Joseph’s (2008-2018)
Founding partner of Riverside Cardiology and Diagnostic Imaging
University of Toronto for Medicine and Internal medicine residency
University of Western Ontario for Cardiology
Echo Fellowship in Hartford, Connecticut
Level 3 training in Echocardiography
Nuclear cardiology (ASNC) and Echo (ASE) certification

Last updated August 01, 2025