Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ryan Kolakoski, PSYD

Psychologist in Pleasant Hill, CA · enumerated 2006.

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

National Provider Identifier

1063589182

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Registry record

Entity type Individual (Type 1)

Name Dr. Ryan Kolakoski

Credential PSYD

Sex Male

Practice address 391 Taylor Blvd, Ste. 250, Pleasant Hill, CA, 94523

Phone (925) 688-8910

Fax (925) 688-2200

Enumeration date Nov 30, 2006

Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY 17992 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Ryan Kolakoski?

Ryan Kolakoski 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.