Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Michael Mahoney, CP

Psychologist in Redding, CA · enumerated 2007.

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

National Provider Identifier

1396889143

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name John Michael Mahoney

Credential CP

Sex Male

Practice address 2640 Breslauer Way, Redding, CA, 96001

Phone (530) 225-5200

Enumeration date Feb 16, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY14921 (CA) Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is John Mahoney?

John Mahoney is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.