Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathleen S Williams, LCSW-C

Clinical Social Worker in Rockville, MD · enumerated 2005.

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

National Provider Identifier

1356324073

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Kathleen S Williams

Credential LCSW-C

Sex Female

Practice address 14901 Broschart Rd, Rockville, MD, 20850

Phone (703) 698-5220

Fax (703) 573-2351

Enumeration date Nov 28, 2005

Last updated in NPPES Jun 17, 2010

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 11475 (MD) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 0904006645 (VA) Secondary

Other identifiers

Identifier	Type	State	Issuer
2161608	Other	-	MAMSI
177754	Other	-	VALUEOPTIONS
0083	Other	DC	CAREFIRST
80861-000	Other	-	MAGELLAN
305812	Other	VA	ANTHEM - VA OFFICE LOCATI
364208	Other	-	MHN
180726	Other	MD	ANTHEM
718320	Other	-	NCPPO

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

Is NPI 1356324073 active?

Yes, as of the latest NPPES snapshot, NPI 1356324073 is active (record last updated 2010-06-17).

How do I verify Kathleen Williams's NPI record?

Cross-check NPI 1356324073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-17.