Dr. William Lesner is a psychiatrist practicing in Lowell, MA. Dr. Lesner is a medical doctor specializing in the care of mental health patients. As a psychiatrist, Dr. Lesner diagnoses and treats mental illnesses. Dr. Lesner 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. Lesner treats conditions like depression, anxiety, OCD, eating disorders, bipolar disorders, personality disorders, insomnia, ADD and other mental illnesses.