Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Sarah Louise Clayton, LICSW

Social Worker in Ludlow, MA · enumerated 2005.

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

National Provider Identifier

1942297957

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Registry record

Entity type Individual (Type 1)

Name Ms. Sarah Louise Clayton

Credential LICSW

Sex Female

Practice address 77 Winsor St, Suite 101, Ludlow, MA, 01056

Phone (413) 583-6750

Fax (413) 589-7001

Enumeration date Oct 4, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 107293 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
P06500	Other	MA	BLUE CROSS/BS
1892312	Medicaid	MA	-

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 Sarah Clayton practice?

The practice location on file with NPPES is in Ludlow, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Sarah Clayton?

The National Provider Identifier (NPI) for Sarah Clayton is 1942297957, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.