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William G Roth, PHD

Psychologist in Loma Linda, CA · enumerated 2006 · practices at Mazna Ahmad MD Inc.

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

National Provider Identifier

1154346849

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Registry record

Entity type Individual (Type 1)
Name William G Roth
Credential PHD
Sex Male
Practice address 11374 Mountain View Ave, Suite A, Loma Linda, CA, 92354
Phone (909) 558-4505
Enumeration date Jul 13, 2006
Last updated in NPPES Sep 24, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY10195 (CA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
PSY101950 Medicaid CA -

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

Where does William Roth practice?
The practice location on file with NPPES is in Loma Linda, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Roth?
The National Provider Identifier (NPI) for William Roth is 1154346849, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-24.