Justin Hummer

Photo of Justin Hummer
Associate Behavioral and Social Scientist
Santa Monica Office


Ph.D. in clinical science, University of Southern Calif; M.A. in psychology, University of Southern Calif; B.A. in psychology, Loyola Marymount University


Justin Hummer is an associate behavioral and social scientist at the RAND Corporation. Also a clinical psychologist, he has expertise in evidence-based psychological treatments for addictive behaviors and mental health in adolescents and young adults. His research focuses on better understanding and treating problematic substance use using an ecological framework that emphasizes relevant developmental, familial, social, and cultural contexts. Hummer’s work explores individual-difference factors and mechanisms of change involved in the efficacy of health interventions delivered through digital platforms. He has additional interests in issues pertaining to psychological health among active dutyservice members and young adult veterans and in evaluating access to and quality of behavioral health care within the military health system. Hummer holds a Ph.D. in clinical science from the University of Southern California and completed his predoctoral internship at the VA Sacramento Healthcare System where he focused on rotations in empirically-supported interventions for general mental health, addiction recovery and treatment services, posttraumatic stress disorder, and behavioral medicine.

Honors & Awards

  • Society for a Science of Clinical Psychology Outstanding Graduate Student Researcher
  • National Science Foundation Graduate Research Fellowship
  • National Institute on Alcohol Abuse and Alcoholism Early Career Researcher Award


  • Georgia Army National Guard Soldiers conduct a sunrise run during annual training at Fort Stewart, Georgia, January 11, 2017, photo by Capt. William Carraway/U.S. Army

    Supporting the Mental Health Needs of National Guard and Reserve Members

    Over one million U.S. military service members are members of the National Guard or reserves. These troops are being tested like never before, but they do not receive the same physical and mental health care coverage provided to their active-duty counterparts. It may be time to explore policy solutions to ensure that these service members have access to high-quality mental health care.

    Sep 22, 2021 RealClearDefense