Joshua J. Matacotta, PsyD, CAHIMS


Dr. Matacotta trained as a clinical psychologist with an emphasis in health psychology. He completed his pre-doctoral internship in clinical psychology and his postdoctoral residency at California State Polytechnic University, Pomona's Student Health Center - Counseling and Psychological Services. Dr. Matacotta worked as a staff psychologist at California State University, Fullerton. He also provided outpatient counseling services at St. Mary’s Medical Center in the Sister Mary Philippa Health Clinic. Dr. Matacotta conducts research and evaluation of interprofessional education at Western University of Health Sciences. He is adjunct faculty at Pasadena City College in the Division of Social Sciences.

Education & Certification

PsyD, MA Clinical Psychology 2012
California School of Professional Psychology, San Francisco

BA 2005
San Francisco State University

Certified Associate in Health Information and Management Systems 2013
Health Information and Management Systems Society (HIMSS North America)


Introductory Psychology
Health Psychology
Positive Psychology
LGBT Studies
Independent Study
Interprofessional Education


Dr. Matacotta's research broadly focuses on health disparities in LGBT adults, particularly in the areas of HIV/AIDS and mental health problems. His work emphasizes the impact of stigma and discrimination on health and mental health, treatment engagement, and treatment adherence in sexual minorities. 

Other Research Topics

  • Quality of life and aging with HIV

  • Behavioral Health/Behavioral Medicine

  • Health information technology

  • Interprofessional education and practice

Professional Memberships

  • American Psychological Association (APA)

  • Society of Behavioral Medicine - SBM Champion

  • Healthcare Information and Management Systems Society (HIMSS)