Roger R. Harrison, PhD


Primary Office

Nemours Children's Hospital, Delaware Nemours Children's Hospital, Delaware 1600 Rockland Road Wilmington, DE 19803 Appointment: (800) 416-4441

Other Offices

Get to Know Me

Roger Harrison, PhD, is a pediatric psychologist with Nemours Children’s Health in Wilmington, Delaware, and clinical associate professor of Pediatrics at Sidney Kimmel College of Medicine at Thomas Jefferson University. He currently serves as president-elect of the Delaware Psychological Association and chair of its diversity committee. In addition, he serves as a commissioner to the Delaware Health Care Commission, appointed by Governor John Carney. 


At Nemours, he is a diversity and inclusion educator in the Office of Health Equity and Inclusion (OHEI), and co-chairs the Division of Behavioral Health’s diversity subcommittee.


Dr. Harrison has a special focus on ADHD, behavior disorders in childhood, anxiety and mood disorders, and parenting.

Why I Treat Children

I developed a passion for psychology in college. I always knew I would work with children, and if I wasn’t a psychologist, I would be an elementary school teacher. I feel very blessed. I’m a big kid who never really grew up – every day is one to relish.

Education & Training


  • Pediatric Behavioral Health - Nemours/Alfred I. duPont Hospital for Children, 2007

Internship Residency

  • Pediatric Behavioral Health - Nemours/Alfred I. duPont Hospital for Children, 2004

Medical/Dental School

  • Doctor of Philosophy - Brigham Young University, 2006

Awards & Recognition

  • 2021 Inaugural Inclusion, Diversity, and Excellence in Advocacy and Social Justice (IDEAS) Award, DREAM IPC Conference
  • 2021 Biennial Award for Excellence in Diversity Training, Association of Psychology Postdoctoral and Internship Centers (APPIC)
  • 2020 Delaware Valley Educator of the Year Award, Nemours
  • 2019 Outstanding Contribution to Diversity Award, Society of Pediatric Psychology (SPP)

Insurance Accepted

  • Aetna Better Health PA Kids HMO
  • Aetna HMO
  • Aetna PPO/POS/EPO
  • Amerihealth Caritas Delaware
  • Cigna Behavioral Health
  • Community Care Behavioral Health
  • Compsych DE
  • Delaware First Health
  • Devon Health Services
  • Fidelis Care NJ Medicaid HMO
  • Global Medical Managment DE/PA
  • Highmark Blue Cross Blue Shield of Delaware
  • Highmark Medicaid Health Options
  • Horizon Blue Cross Blue Shield of New Jersey
  • Independance Blue Cross/Amerihealth/Keystone Health Plan
  • Insurance Administrators of America
  • INTEGRA Administrative Group (ClaimsBridge)
  • Lifetrac Transplant
  • Maryland Medicaid
  • MHNET Behavioral Health
  • Multiplan PPO
  • National Transplant (Humana)
  • New Jersey Medicaid
  • Pennsylvania Medicaid
  • Plan Vista/NPPN PPO
  • Preferred Healthcare PPO
  • Private Health Care Systems (PHCS)
  • Qualcare HMO/POS/PPO
  • Star Healthcare Network
  • Three Rivers Provider Network
  • Tricare/Humana Military Health Services

  • Adjustment to Medical Illness
  • Anxiety Disorders
  • Attention Deficit Hyperactivity Disorder
  • Autism
  • Depressive Disorders
  • Disruptive Behavior
  • Obsessive-Compulsive Disorder

Research Activities

I spend most of my time as a clinician, but I’m involved in a couple of research projects: outcomes of parent-child conduct clinic group treatment, and outcomes for ADHD diagnostics. My interests are figuring out the connection between learning problems and children with ADHD.

  • Valenzuela, J., Crosby, L. E., & Harrison, R. R. (2020). Commentary: Reflections on the COVID-19 pandemic and health disparities in pediatric psychology. Journal of Pediatric Psychology, 45(8), 839-841. doi:10.1093/jpepsy/jsaa063

    View Full Publication
  • Chopko, S., Klostermann, S., Veloski, M., Sherman, C., Harrison, R., & Pendley, J. S. (2018). International patients: Lessons learned from a pediatric psychology and international medicine collaboration. Clinical Practice in Pediatric Psychology, 6(4), 398-407. doi:10.1037/cpp0000258

  • Williamson, A. A., Harrison, R. R., Reader, S. K., & Tynan, W. D. (2016). Parent-Child Groups for Externalizing Disorders: Outcomes, Sociodemographic Moderators, Attendance, and Attrition in a Real-World Setting. Evidence-Based Practice in Child and Adolescent Mental Health, 1(2-3), 126-143. doi:10.1080/23794925.2016.1227945

  • English