Photo of Molly K. Crossman, PhD

Molly K. Crossman, PhD

McLean Hospital Title
Harvard Medical School Title
  • Instructor in Psychology, Department of Psychiatry


Molly K. Crossman, PhD, is a therapist at the 3East Boys Intensive Program, where she provides comprehensive dialectical behavior therapy (DBT) to adolescents and young adults with emerging borderline personality disorder and other forms of emotion dysregulation. Dr. Crossman has experience using individual, group, family, and milieu treatments with children, adolescents, and adults. She uses evidence-based care models, including DBT and cognitive behavior therapy (CBT), and specializes in the treatment of borderline personality disorder, suicidality, and self-injurious behaviors.

Dr. Crossman is also an expert on human-animal interaction and the effects of interactions with animals on human mental health. She has authored numerous articles and book chapters on these topics, and her work has been featured in outlets such as the Washington Post, Psychology Today, Vox, and Vice News.

Education & Training

  • 2011 AA, Bard College at Simon’s Rock
  • 2013 BA in Psychology and Child Development, Tufts University
  • 2015 MS in Clinical Psychology, Yale University
  • 2016 MPhil in Clinical Psychology, Yale University
  • 2019 PhD in Clinical Psychology, Yale University
  • 2018–2019 Clinical Psychology Pre-Doctoral Internship, Adolescent Psychopathology Track, McLean Hospital/Harvard Medical School
  • 2019-2020 Adolescent Psychology Post-Doctoral Fellowship, 3East Boys Intensive Program, McLean Hospital/Harvard Medical School


Phone: 617.855.2930
Office Address: Arlington campus - Merck Building, Room 009