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

Daniel Tennenbaum, PHD

Clinical Psychologist in Vacaville, CA · enumerated 2009 · practices at California Medical Facility.

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

National Provider Identifier

1871734798

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Registry record

Entity type Individual (Type 1)
Name Daniel Tennenbaum
Credential PHD
Sex Male
Practice address Vacaville, CA, 95687
Enumeration date Mar 24, 2009
Last updated in NPPES Mar 24, 2009

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY12848 (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

What is the NPI number for Daniel Tennenbaum?
The National Provider Identifier (NPI) for Daniel Tennenbaum is 1871734798, a Type 1 (individual) record in the CMS NPPES registry.
Where does Daniel Tennenbaum practice?
The practice location on file with NPPES is in Vacaville, 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 2009-03-24.