Dr. Gordon Sussman

Dr. Gordon L. Sussman is a Canadian physician, researcher, and educator specializing in Allergy, Clinical Immunology, and Internal Medicine. Based in Toronto, Ontario, he has been a leading figure in allergy and immunology for more than three decades, with a career spanning clinical practice, research, teaching, and medical leadership.

Dr. Sussman earned his medical degree from the Schulich School of Medicine & Dentistry at Western University in 1977 and subsequently obtained specialty certification in Internal Medicine and Clinical Immunology and Allergy through the Royal College of Physicians and Surgeons of Canada. He has been licensed for independent medical practice in Ontario since 1983.

Throughout his career, Dr. Sussman has made significant contributions to the understanding and treatment of allergic and immunologic diseases. He is particularly recognized for his pioneering work in natural rubber latex allergy, having been among the first physicians to identify and report cases of latex allergy. His research helped raise awareness of the condition and contributed to reductions in latex exposure within healthcare settings.

His research interests have also included chronic urticaria (hives), angioedema, asthma, food allergies, drug allergies, and immune disorders. Dr. Sussman and his colleagues were among the first researchers to demonstrate that chronic hives are generally not caused by food allergies, helping to reshape clinical understanding of the condition.
In addition to his clinical and research work, Dr. Sussman serves as a Professor and Clinician-Teacher at the University of Toronto, contributing to the education and mentorship of future physicians and specialists in allergy and immunology.

Dr. Sussman leads a busy clinical allergy practice in Toronto and has held appointments at major academic hospitals, including Sinai Health System, and St. Michael’s Hospital. He is widely regarded as a key opinion leader in Canadian allergy and immunology and has been involved in numerous clinical trials and scientific publications throughout his career.