Dr. Frank Ninivaggi is a psychiatrist practicing in New Haven, CT. Dr. Ninivaggi is a medical doctor specializing in the care of mental health patients. As a psychiatrist, Dr. Ninivaggi diagnoses and treats mental illnesses. Dr. Ninivaggi 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. Ninivaggi treats conditions like depression, anxiety, OCD, eating disorders, bipolar disorders, personality disorders, insomnia, ADD and other mental illnesses.