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

Individual provider Clinical Psychologist · NPI 1376685842

Dr. Dianna E. Washington, PHD is a Clinical Psychologist in Silver Spring, Maryland. Practices as a sole proprietor. Licensed in District of Columbia and Maryland.

Licensed in
DC, MD
In the registry since
2007
Specialties on file
4
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

8811 Colesville Rd Ste 105
Silver Spring, MD 20910-4343
Phone: (301) 587-8307
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 1317 (DC)
Clinical Psychologist Taxonomy 103TC0700X · Licence 01771 (MD)
Clinical Psychologist Taxonomy 103TC0700X · Licence 1317 (DC)
Psychologist Taxonomy 103T00000X · Licence 01771 (MD)

Record details

NPI number1376685842
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedFebruary 13, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address14547 Jaystone Dr, Silver Spring, MD 20905-7404

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