John-Chastain-MDDr. Chastain is the newest addition to our staff, joining Tucson Ear, Nose, and Throat, P.C. in 2016. He previously practiced for almost ten years in his home state of Georgia.  He graduated from Georgia Tech with highest honors on a full academic scholarship.  Thereafter, he earned his medical doctorate at the Medical College of Georgia in Augusta, Georgia and completed otolaryngology residency training at St. Louis University Hospital in St. Louis, Missouri.

Dr. Chastain is board certified by the American Board of Otolaryngology since 2008. He is a member of the American Academy of Otolaryngology – Head and Neck Surgery.

Dr. Chastain's practice interests include office-based and endoscopic sinus surgery, thyroid and parathyroid surgery, skull base surgery, and general adult and pediatric ear, nose and throat conditions.