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

MS. Nancy L Lithgow, RN, LICSW

Individual provider Clinical Social Worker · NPI 1871703181

MS. Nancy L Lithgow, RN, 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
2007
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
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

101 6th St NE
Washington, DC 20002-6019
Phone: (202) 543-7700
Fax: (202) 543-7700
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LC00300848 (DC)

Record details

NPI number1871703181
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , LICSW
Sole proprietorYes
NPI enumeratedMay 23, 2007
Last updated in NPPESJuly 8, 2007

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