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

Crystal Diane Williams, MSW, MPA

Individual provider Social Worker · NPI 1972308690

Crystal Diane Williams, MSW, MPA is a Social Worker in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2025.

Licensed in
DC
In the registry since
2025
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

915 Rhode Island Ave NW
Washington, DC 20001-4153
Phone: (202) 232-6100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence LG200004344 (DC)
Community Health Worker Taxonomy 172V00000X

Record details

NPI number1972308690
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , MPA
Sole proprietorNo
NPI enumeratedFebruary 17, 2025
Last updated in NPPESOctober 7, 2025
Certification dateOctober 7, 2025

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