Andrew J. RingerAndrew Ringer, MD, is a neurosurgeon with the Mayfield Clinic, Director of Neurosurgery at the Good Samaritan Hospital and Chief of Neurosciences at TriHealth Hospital System in Cincinnati, Ohio. . Dr. Ringer is dedicated to treating patients with nurovascular disease and to finding new neurosurgical techniques for the treatment of aneurysms, arteriovenous malformations, carotid artery disease, and stroke. Read More Read Less