Dr. Hanna is a Pediatric Allergy, Asthma, and Immunology Specialist. At the moment, Dr. Hanna holds several positions including:

• Assistant Clinical Professor in the Department of Pediatrics at McMaster University.
• Pediatrics Section Advisor for the Canadian Society of Allergy and Clinical Immunology (CSACI).
• Chair of the Section of Allergy for the Ontario Medical Association
• Advisor on the Ontario Immunization Advisory Committee.

Dr. Hanna is the co-founder of Halton Pediatric Allergy Clinic in Burlington, Ontario. The clinic focuses on accurate diagnosis, management, and treatment of allergic conditions including asthma, environmental and food allergies, as well as, eczema.