About Us

Depression Treatment by Depression Experts

Dr. Johnston founded Phoenix Mental Health to bring new, innovative, evidence-based treatments for Major Depressive Disorder (MDD) to the people of San Antonio… and beyond. Phoenix Mental Health is the first clinical site in San Antonio to offer Deep Brain Transcranial Magnetic Stimulation (TMS), while also offering IV Ketamine and Intranasal Ketamine (Spravato) all for the treatment of MDD. Dr. Johnston works hard to provide these treatments in a comfortable, caring, and empathic atmosphere to ensure that your experience is a positive one.

Meet The Team

Dr. Nathan Johnston, Board-Certified Psychiatrist

Dr. Azalia Martinez, Board-Certified Psychiatrist

Dr. Gerardo Gonzalez, Psychologist

Nicholas Estioko, Physician Assistant