Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rebecca Diana Smith, PSYD

Clinical Psychologist in Pleasanton, CA · enumerated 2023.

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

National Provider Identifier

1639859820

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Registry record

Entity type Individual (Type 1)

Name Rebecca Diana Smith

Credential PSYD

Sex Female

Practice address 3825 Hopyard Rd Ste 202, Pleasanton, CA, 94588

Phone (925) 847-5051

Enumeration date Jul 21, 2023

Last updated in NPPES Jul 21, 2023

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY34331 (CA) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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 Rebecca Smith's NPI record?

Cross-check NPI 1639859820 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639859820 active?

Yes, as of the latest NPPES snapshot, NPI 1639859820 is active (record last updated 2023-07-21).

Other providers at this practice address

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Cynthia Long Clinical Social Worker · Pleasanton, CA NPI 1144484551 Chris Brown Marriage & Family Therapist · Pleasanton, CA NPI 1740596626 Nicole Ng Clinical Psychologist · Pleasanton, CA NPI 1851733430 Bianca Lemus Marriage & Family Therapist · Pleasanton, CA NPI 1801255500

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-21.