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Dr. William B Janzen, PHD

Clinical Psychologist in Metairie, LA · enumerated 2007.

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

National Provider Identifier

1043356603

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Registry record

Entity type Individual (Type 1)
Name Dr. William B Janzen
Credential PHD
Sex Male
Practice address 3445 N Causeway Blvd, Suite 601, Metairie, LA, 70002
Phone (504) 834-2606
Fax (504) 834-2589
Enumeration date Jan 30, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 462 (LA) 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

Where does William Janzen practice?
The practice location on file with NPPES is in Metairie, LA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Janzen?
The National Provider Identifier (NPI) for William Janzen is 1043356603, 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 2007-07-08.