Welcome to the home page of the Mount Sinai Allergy and Immunology Faculty Practice Associates (AI-FPA). The highly respected allergists and immunologists of the AI-FPA diagnose, treat, and manage immune system disorders and diseases. These range from allergic rhinitis (“hay fever”) and asthma, to food allergies, allergies to drugs and chemicals, as well as undiagnosed symptoms suggesting an immune deficiency disorder. In fact, our immunologists’ work in the research and treatment of primary immune deficiency disorders is recognized worldwide.