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

Individual provider Psychologist · NPI 1932430030

Dr. Diana Harder Terrell, PHD is a Psychologist in Wilmington, Delaware. Practices as a sole proprietor. Licensed in Delaware.

Licensed in
DE
In the registry since
2010
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3608 Lancaster Pike
Wilmington, DE 19805-1509
Phone: (302) 995-9600
Fax: (302) 995-9671
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence B1-0000141 (DE)

Record details

NPI number1932430030
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 29, 2010
Last updated in NPPESJanuary 29, 2010

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