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

Individual provider Cognitive & Behavioral Psychologist · NPI 1225627540

Dr. Ruth Katherine Smith, PHD is a Cognitive & Behavioral Psychologist in Washington, District of Columbia. Practices as a sole proprietor. Licensed in District of Columbia.

Licensed in
DC
In the registry since
2021
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.

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Practice location Address checks out

2021 L St NW Ste 101-211
Washington, DC 20036-4909
Phone: (240) 418-4719
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSYA00421 (DC)
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X

Record details

NPI number1225627540
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 12, 2021
Last updated in NPPESJanuary 12, 2021
Certification dateJanuary 12, 2021

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