Mark Biagtan, MD, is a UW Health allergy and immunology doctor. He diagnoses and treats people with a wide range of allergic conditions. He sees patients for seasonal and environmental allergies, asthma, food allergies, drug allergies, recurring sinus infections, swelling and hives (a bumpy, itchy skin rash).

Dr. Biagtan works with patients to identify what’s causing their allergic reactions. He recommends the latest treatments to manage their conditions and offers tips to reduce bothersome daily symptoms. For the patient’s convenience, Dr. Biagtan and his team provide a written summary of each visit, along with instructions.