NPI Portal NPI Lookup & Verification

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

Eileen R Martelli, LCSW

Mental Health Counselor in Winchester, VA · enumerated 2008.

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

National Provider Identifier

1134305550

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Eileen R Martelli
Credential LCSW
Sex Female
Practice address Winchester, VA, 22601
Fax (540) 722-0751
Enumeration date Jan 16, 2008
Last updated in NPPES Jan 16, 2008

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0904002662 (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

How do I verify Eileen Martelli's NPI record?
Cross-check NPI 1134305550 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1134305550 active?
Yes, as of the latest NPPES snapshot, NPI 1134305550 is active (record last updated 2008-01-16).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-16.