Dr. John Costa is an allergist-immunologist in Buzzards Bay, Massachusetts and is affiliated with multiple hospitals in the area, including Beth Israel Deaconess Hospital-Plymouth and Boston Children's Hospital. He received his medical degree from Icahn School of Medicine at Mount Sinai and has been in practice for 31 years. He is one of 2 doctors at Beth Israel Deaconess Hospital-Plymouth and one of 35 at Boston Children's Hospital who specialize in Allergy & Immunology.