NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Colleen Noel Pennington, PSY.D.

Psychologist in Brentwood, CA · enumerated 2010 · practices at Smith Massage Therapy.

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

National Provider Identifier

1831415587

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Registry record

Entity type Individual (Type 1)
Name Dr. Colleen Noel Pennington
Credential PSY.D.
Sex Female
Practice address Brentwood, CA, 94513
Phone (925) 642-1987
Enumeration date Apr 19, 2010
Last updated in NPPES Dec 31, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY22533 (CA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

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 Colleen Pennington?
Colleen Pennington 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-31.