Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Roger R. Harrison, PHD

Individual provider Clinical Psychologist · NPI 1356523716

Dr. Roger R. Harrison, PHD is a Clinical Psychologist in Wilmington, Delaware. Licensed in Delaware and Pennsylvania. Registered with an NPI since 2007.

Licensed in
DE, PA
In the registry since
2007
Specialties on file
3
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Partly verified

Some contact details are missing from the federal record.

A.i Dupont Hospital For Children 1600 Rockland Rd
Wilmington, DE 19803-3607
Phone: (302) 651-4000
Fax: (302) 651-4945
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PS020166 (PA)
Clinical Psychologist Taxonomy 103TC0700X · Licence B10000777 (DE)
Group Psychotherapy Psychologist Taxonomy 103TP2701X · Licence B10000777 (DE)

Record details

NPI number1356523716
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedNovember 28, 2007
Last updated in NPPESJune 17, 2024
Certification dateJune 17, 2024

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