About Oasis ENTOasis Ear, Nose, and Throat is a specialty practice located in Surprise, Arizona. The team puts each patient first in their approach and uses advanced testing and treatments to address a wide variety of conditions and complications. The team at Oasis Ear, Nose, and Throat diagnoses and treats patients of all ages with head and neck conditions. They frequently provide pediatric ear, nose, and throat care and make the process as simple as possible for both children and their parents. To make or confirm an accurate diagnosis for every patient, Oasis Ear, Nose, and Throat offers several on-site tests.