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Thomas Demaria

Thomas P. Demaria

Director, Psychological Services CenterFaculty Admin, Trauma Response TeamAdjunct Professor, LIU Post Clinical Psychology Doctoral Program


Dr. Demaria received his Ph.D. in Clinical/School Psychology from Hofstra University in 1986 and has been a New York State licensed Psychologist since 1987.  Dr. Demaria has over twenty years of hospital behavioral healthcare leadership experience including the management of inpatient psychiatric and behavioral medicine consultation services and outpatient mental health and substance abuse programs He is a Fellow of the Trauma Division of the American Psychological Association, Director of the Psychological Services Center of the Doctoral Psychology Program at Long Island University Post and founder of the Graduate Student Trauma Response Team which was awarded the 2012 Innovative Program Award from the National Counsel of Schools of Professional Psychology and has generated over 100 professional presentations. Dr. Demaria currently serves on the Professional Advisory Board for the National Center for School Crisis & Bereavement and is involved in web-based training initiatives for the National Coalition to Support Grieving Students.  Dr. Demaria has earned numerous awards for leading hundreds of community disaster counseling responses during the past 30 years. In 2015/6 Dr. Demaria coauthored “Child & Disaster” and “Bereavement” practice guidelines for the American Academy of Pediatrics.  


Post Traumatic Stress Disorder; Grief & Loss; Memorials & Commemoration; Behavioral Medicine; Cross-Cultural Psychology; Religion; Disaster Psychology


  • Co-author, “Innovative Counseling Approaches with Children and Youth,” published by South Nassau Communities Hospital’s World Trade Center Family Center
  • Co-author, “Working with Children Following Disasters”
  • Co-author, “A Community World Trade Center Trauma and Bereavement Counseling Program,” published in Mental Health Responses and Practical Knowledge Gained
  • Co-author, “Predicting Guilt from Irrational Beliefs, Religious, Affiliation and Religiosity,” published in the Journal of Rational-Emotive Therapy


  • Adelphi University Center for Health Innovation Award – Public Health Preparedness – LIU Trauma Response Team (2017)
  • Distinguished Mentor Award:  International Society for Traumatic Stress Studies (2013)
  • Long Island University Post Gold Heart Award: Excellence in Experiential Learning (2013)
  • Green & Gold Staff Recognition Award:  C.W. Post Employee of the Year (2011)  
  • Long Island Business “Health Care Hero” Award (2006)
  • New York State Senate Liberty Award Recipient for Community Service Following Hurricane Katrina (2006) 
  • ISTSS (International Society for Traumatic Stress Studies) - Sarah Haley Memorial Award for Clinical Excellence (2005)
  • Federal Emergency Management Administration, Substance Abuse and Mental Health Services Administration, Acknowledgement Certificate to Home Ground for “exemplary dedication and leadership in providing effective community-based mental health and substance abuse services” (2005)
  • Molloy College, Center for Christian/Jewish Studies; Humanitarian Award, (2004)
  • Certificates of Appreciation:  Project Liberty, Nassau County Executive, New York State Office of Mental Health, (2003)
  • New York State Senate Liberty Award for WTC Community Service (2002)
  • American Red Cross Service Award (2002) 

Professional Affiliations:

  • Expert Panelist, Fordham University Graduate School of Social Service, Trauma & Grief-Informed Responses to Community Violence & Loss – Newtown Film Screening 
  • Independent Oversight Committee, Independent Reconciliation and Compensation Program for victims of clergy sexual abuse, Diocese of Rockville Centre 
  • Guest Co-Editor, American Psychological Association’s “School Psychology Quarterly”
  • Founding Member Committee: Coalition to Support Grieving Students (2013 – 2016)
  • Expert Testimony, Sandy Hook Commission (2013-2014)
  • U.S. Senate Briefing on Briefing on school tragedies, violence, and the mental health sponsored by NASP (2013)
  • American Academy Pediatrics Visiting Professorship Proposal Reviewer: Pediatric Bereavement (2012)
  • American Psychological Association Fellow – Division 56 (Trauma Psychology) (2011)
  • Museum Planning Conversation Series, National September 11 Memorial & Museum at the World Trade Center (2007- 2011)
  • United States Department of Health & Human Services / Office of Public Health & Science, Strategy Group Meeting on Mental Health & Trauma Affecting Women & Children (2009- 2011)
  • Leadership Development Task Force, International Society for Traumatic Stress Studies (2009)
  • Expert Reviewer, SAMHSA Disaster Technical Assistance Center, “Disaster Behavioral Health Intervention Series: Resources for Public Safety Workers” (2007)
  • Faculty - Mount Sinai School of Medicine, Department of Pediatrics, “Reaching Child Initiative” (2007)
  • Invited Guest of the Department of Defense & Pentagon to Visit Wounded Soldiers: Walter Reed and National Naval Medical Center at Bethesda (2006)
  • Invited Guest to the New York French Embassy for a Meeting with “Le Secretaire D’Etat Aux Droits Des Victims”, about the Victims of the World Trade Center, (2004)
  • National Center for School Crisis & Bereavement: Advisory Board (2007-present)
  • Association of Directors of Psychological Training Clinics
  • American Psychological Association:  APA Divisions of Clinical (12) & Trauma Psychology (56)
  • American Red Cross:  Nassau County & Greater New York Chapters
  • International Society for Traumatic Stress Studies