NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Catherine C Whitledge, LCSW

Clinical Social Worker in Mclean, VA · enumerated 2007.

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

National Provider Identifier

1609921808

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Registry record

Entity type Individual (Type 1)
Name Mrs. Catherine C Whitledge
Credential LCSW
Sex Female
Practice address Mclean, VA, 22101
Fax (703) 356-1453
Enumeration date Jan 25, 2007
Last updated in NPPES Jul 9, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 0904001703 (VA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
025009 Other VA ANTHEM PIN
8107 Other VA BLUE CROSS PIN

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.

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Frequently asked questions

How do I verify Catherine Whitledge's NPI record?
Cross-check NPI 1609921808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609921808 active?
Yes, as of the latest NPPES snapshot, NPI 1609921808 is active (record last updated 2007-07-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.