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CRYSTAL DIANE WILLIAMS MSW, MPA
NPI 1972308690
Social Worker in Washington, DC

Active since February 17, 2025
915 RHODE ISLAND AVE NW, WASHINGTON, DC 20001(202) 232-6100 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 7, 2025, Mar 7, 2025, Feb 17, 2025 (3 updates tracked since 2025).

About Crystal Diane Williams Msw, Mpa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CRYSTAL DIANE WILLIAMS MSW, MPA (NPI 1972308690) is an individual social worker in Washington, District Of Columbia, licensed in District Of Columbia (LG200004344) and active in the NPI registry since February 2025.

NPPES Registry Identity

NPI1972308690
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameCRYSTAL DIANE WILLIAMSCredential: MSW, MPA
Location Address915 RHODE ISLAND AVE NWWashington, DC 20001-4153
Mailing Address6816 Red Top Rd Apt 3Takoma Park, MD 20912-5905 · (347) 866-5338
Phone(202) 232-6100
Sole ProprietorNo
Enumeration DateFebruary 17, 2025
Last NPPES UpdateOctober 7, 20253 updates tracked since enumeration
NPPES CertifiedOctober 7, 2025
✔ NPI 1972308690 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in DC · LG200004344
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedCommunity Health WorkerTaxonomy 172V00000X
915 RHODE ISLAND AVE NW, Washington, DC 20001
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MELISSA CIMINO LGPC
Counselor (Mental Health)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6810
MRS. LILI JOHNSON LICSW
Social Worker (Clinical)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 560-0349
BIANCA PADILLA
Counselor (Professional)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
MONICA PATEL LGSW
Social Worker
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
WEELAY GONYON
Social Worker (Clinical)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
NIGEL GARNETT
Community Health Worker
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 560-0349
DEMARKUS TAYLOR
Case Manager/Care Coordinator
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100
CHINELO ANADU NURSE PRACTITIONER
Nurse Practitioner (Psychiatric/Mental Health)
915 RHODE ISLAND AVE NW
WASHINGTON, DC 20001
District of Columbia (202) 232-6100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Crystal Williams's NPI number?

The NPI number for Crystal Williams is 1972308690. It was assigned to this individual provider in the NPPES registry on February 17, 2025.

Where is Crystal Williams located?

Crystal Williams practices at 915 Rhode Island Ave NW, Washington, DC 20001. The listed phone number is (202) 232-6100.

What is Crystal Williams's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Crystal Williams was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.