NPI Portal NPI Lookup & Verification

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

Mrs. Rachel Lynn Grahn, LCSW

Clinical Social Worker in Lagrangeville, NY · enumerated 2005.

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

National Provider Identifier

1356322069

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Registry record

Entity type Individual (Type 1)
Name Mrs. Rachel Lynn Grahn
Credential LCSW
Sex Female
Practice address Lagrangeville, NY, 12540
Phone (516) 477-1484
Fax (845) 471-2223
Enumeration date Nov 9, 2005
Last updated in NPPES Jun 30, 2016

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 064294-1 (NY) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 075557-1 (NY) 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 Rachel Grahn practice?
The practice location on file with NPPES is in Lagrangeville, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rachel Grahn?
The National Provider Identifier (NPI) for Rachel Grahn is 1356322069, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-30.