David Gregory Fagan, MD is a reputable medical institution located at 504 Hicksville Road in Massapequa, New York, United States. Dr. Fagan is a highly skilled and experienced doctor specializing in providing quality healthcare services to patients. Whether you are in need of a routine check-up or specialized medical treatment, Dr. Fagan and his team are dedicated to providing personalized care to meet your individual needs. With a focus on patient well-being and comfort, you can trust in the expertise and professionalism of the staff at David Gregory Fagan, MD for all your healthcare needs.