NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Leslie Marie Martin, LCSW, CSAC

Addiction (Substance Use Disorder) Counselor in Herndon, VA · enumerated 2007.

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

National Provider Identifier

1831210483

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Leslie Marie Martin
Credential LCSW, CSAC
Sex Female
Practice address 108 Elden St, Suite 15-C, Herndon, VA, 20170
Phone (703) 796-6380
Fax (703) 796-6381
Enumeration date Apr 2, 2007
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License 0904005772 (VA) Secondary
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 0710101842 (VA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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

Where does Leslie Martin practice?
The practice location on file with NPPES is in Herndon, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Leslie Martin?
The National Provider Identifier (NPI) for Leslie Martin is 1831210483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.