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

William Waring Simpson, LGSW

Individual provider Clinical Social Worker · NPI 1770477085

William Waring Simpson, LGSW 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
2025

Practice location Address checks out

2000 P St NW Ste 540
Washington, DC 20036-6921
Phone: (202) 644-8904
Fax: (202) 644-8904
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 LG20003306 (DC)

Record details

NPI number1770477085
Entity typeIndividual (Type 1)
GenderMale
Credentials LGSW
Sole proprietorYes
NPI enumeratedJune 3, 2025
Last updated in NPPESJune 3, 2025
Certification dateJune 3, 2025

Other providers in Washington