NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deborah Jo Dreyfuss, PHD

Clinical Psychologist in Calabasas, CA · enumerated 2006.

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

National Provider Identifier

1619987153

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Deborah Jo Dreyfuss
Credential PHD
Sex Female
Practice address 4766 Park Granada, Suite 107, Calabasas, CA, 91302
Phone (818) 224-3244
Fax (818) 224-3244
Enumeration date Aug 8, 2006
Last updated in NPPES Feb 1, 2012

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY12017 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Deborah Dreyfuss practice?
The practice location on file with NPPES is in Calabasas, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Deborah Dreyfuss?
The National Provider Identifier (NPI) for Deborah Dreyfuss is 1619987153, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-01.