Cullen-Kortlev, Kathleen

After completing training in general psychiatry at Montefiore Medical Center, Dr. Matthew Shear completed a fellowship in Child and Adolescent Psychiatry at Mount Sinai Medical Center, where he was Chief Fellow during his final year. Dr. Shear is board certified in both Adult Psychiatry and Child and Adolescent Psychiatry.Dr. Shear teaches Child and Adolescent Psychiatry to Weill Cornell Medical students, and supervises residents and fellows.To schedule appointments: Call 646-962-2820

Matthew James Tirelli is a board certified psychiatric nurse practitioner. He graduated from Yale School of Nursing in 2013 and is trained in child and adolescent and adult psychiatry. Matthew specializes in the treatment of Mood Disorders, Anxiety Disorders, ADHD, LGBTQ health matters, Autism and individuals with Developmental Delays. Matthew is trained in Dialectical Behavioral Therapy and uses this modality, along with psychotropic medication, to create an individual healing plan for each client. He has previously worked in private practice, foster care setting, and in a busy primary care pediatrics practice as a consulting psychiatric provider for medically complex children. He provides a variety of clinical services including diagnostic assessment and consultations, psychotherapy and psychiatric medication management.