Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Sandra Du Pont, MSW

Social Worker in Livermore, CA · enumerated 2006.

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

National Provider Identifier

1386660546

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Registry record

Entity type Individual (Type 1)

Name Mrs. Sandra Du Pont

Credential MSW

Sex Female

Practice address 4951 Arroyo Rd, Livermore, CA, 94550

Phone (925) 373-4700

Enumeration date Jul 14, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 17331 (CA) Primary

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

What is the NPI number for Sandra Du Pont?

The National Provider Identifier (NPI) for Sandra Du Pont is 1386660546, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sandra Du Pont practice?

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

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