Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Helen Valenstein, PHD

Clinical Psychologist in Menlo Park, CA · enumerated 2019.

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

National Provider Identifier

1609430305

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Registry record

Entity type Individual (Type 1)

Name Dr. Helen Valenstein

Credential PHD

Sex Female

Practice address 700 El Camino Real Ste 120, Menlo Park, CA, 94025

Phone (650) 204-1246

Enumeration date Apr 28, 2019

Last updated in NPPES Apr 23, 2026

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 33342 (CA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Helen Valenstein?

Helen Valenstein is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-23.