Welcome to Allergy Asthma Associates! Our physician, Dr. Nathan Tang, MD is a board certified allergist who has provided services in St. Petersburg, Florida since 2000. As the leading expert in asthma and allergic diseases, our greatest interest is to provide the highest quality health care for you and your family. We provide care to patients of all ages and treat wide varieties of allergic diseases. We wish to make your visits the most pleasant and beneficial experiences.