Dr. Robert Nastasi is a psychiatrist practicing in Johnson City, NY. Dr. Nastasi is a medical doctor specializing in the care of mental health patients. As a psychiatrist, Dr. Nastasi diagnoses and treats mental illnesses. Dr. Nastasi may treat patients through a variety of methods including medications, psychotherapy or talk therapy, psychosocial interventions and more, depending on each individual case. Different medications that a psychiatrist might prescribe include antidepressants, antipsychotic mediations, mood stabilizers, stimulants, sedatives and hypnotics. Dr. Nastasi treats conditions like depression, anxiety, OCD, eating disorders, bipolar disorders, personality disorders, insomnia, ADD and other mental illnesses.