Peter Vadas MD, PhD

Allergist and Clinical Immunologist

Our practice is open to children and adults.


Clinical services provided include the following:


Comprehensive investigation and management of

  • allergies
  • anaphylaxis
  • immunologic disorders in both adults and children


Investigation and management of

  • environmental allergies
  • anaphylaxis
  • drug allergies
  • food allergies
  • allergies to stinging insects
  • urticaria and angioedema
  • asthma
  • immunologic disorders
  • immunotherapy


Medical services

  • asthma disease management
  • allergy skin testing
  • blood (in vitro) tests for food and venom allergies  (ImmunoCAP)
  • pulmonary function testing
  • graded oral challenges to confirm or rule out allergies to foods, drugs, additives
  • penicillin and other drug allergy testing
  • insect (Hymenoptera) venom testing and desensitization
  • allergen immunotherapy
  • investigation of recurrent infections and other immunologic disorders




Office Address


St. Michael's Hospital

36 Toronto St., Suite 700A

Toronto, ON M5C 2C5


Phone: 416.864.5777

Fax:     416.864.3033