Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

District Social Work Services

Case Management Agency in Washington, DC · enumerated 2020 · authorized official Ronald Williams, Managing Partner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1851925077

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Registry record

Entity type Organization (Type 2)

Legal business name District Social Work Services

Practice address 397 O St Sw, Washington, DC, 20024

Phone (202) 629-2157

Enumeration date Feb 26, 2020

Last updated in NPPES Feb 26, 2020

Taxonomy & classification

174200000X Meals Provider Other Service Providers Secondary

251300000X Local Education Agency (LEA) Agencies Secondary

251B00000X Case Management Agency Agencies Primary

251S00000X Community/Behavioral Health Agency Agencies Secondary

253Z00000X In Home Supportive Care Agency Agencies Secondary

261QA0600X Adult Day Care Clinic/Center Ambulatory Health Care Facilities Secondary

261QD0000X Dental Clinic/Center Ambulatory Health Care Facilities Secondary

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities Secondary

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities Secondary

261QM0855X Adolescent and Children Mental Health Clinic/Center Ambulatory Health Care Facilities Secondary

332U00000X Home Delivered Meals Suppliers Secondary

343900000X Non-emergency Medical Transport (VAN) Transportation Services Secondary

347C00000X Private Vehicle Transportation Services Secondary

347E00000X Transportation Broker Transportation Services Secondary

3747A0650X Attendant Care Provider Nursing Service Related Providers Secondary

Authorized official

Name Ronald Williams

Title Managing Partner

Phone (202) 629-2157

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-02-26. Verify at npiregistry.cms.hhs.gov.

Where is District Social Work Services located?

The practice location on file with NPPES is in Washington, DC.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-26.