Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Patrick J. Madden

Psychologist in Thousand Oaks, CA · enumerated 2016 · authorized official Patrick Madden, Licensed Educational Psychologist.

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

National Provider Identifier

1487198578

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Registry record

Entity type Organization (Type 2)

Legal business name Patrick J. Madden

Practice address 501 Marin St, Suite 108, Thousand Oaks, CA, 91360

Phone (805) 529-2255

Enumeration date Dec 8, 2016

Last updated in NPPES Dec 8, 2016

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1460 (CA) Primary

Authorized official

Name Patrick Madden

Title Licensed Educational Psychologist

Phone (805) 529-2255

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 is Patrick J. Madden located?

The practice location on file with NPPES is in Thousand Oaks, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-12-08. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-08.