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

Katharine Blumenthal, LICSW

Individual provider Clinical Social Worker · NPI 1447782255

Katharine Blumenthal, LICSW is a Clinical Social Worker in Washington, District of Columbia. Practices as a sole proprietor. Licensed in District of Columbia.

Licensed in
DC
In the registry since
2017
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

See every abbreviation used in this directory →

Practice location Address checks out

1555 Connecticut Ave NW Ste 300 East
Washington, DC 20036-1111
Phone: (202) 688-1449
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LC50078733 (DC)

Record details

NPI number1447782255
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorYes
NPI enumeratedMarch 30, 2017
Last updated in NPPESMarch 30, 2017

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