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. As a clinical psychologist, Hummer has expertise in evidence-based psychological treatments for addictive behaviors and mental health in adolescents, young adults, and military populations. His research focuses on better understanding and treating problematic substance use, trauma, and other mental health concerns through ecological frameworks that emphasize relevant developmental, familial, social, and cultural contexts. Hummer has considerable background in the design and evaluation of mental health and substance use interventions delivered through digital platforms, with a focus on identifying important mechanisms of change. He continues to grow experience in military health services research, including ways to strengthen access to and quality of mental health care for veterans and active and reserve component service members. Hummer received his Ph.D. in clinical science from the University of Southern California and completed his predoctoral internship at the VA Sacramento Healthcare System.

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


  • Military Health and Health Care

    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