NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John W. Kirk, PSY.D.

Specialist in Boulder, CO · enumerated 2006.

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

National Provider Identifier

1851330435

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John W. Kirk
Credential PSY.D.
Sex Male
Practice address 2501 Walnut St, Suite 107, Boulder, CO, 80302
Fax (303) 443-4682
Enumeration date Jun 6, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 2834 (CO) 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

Where does John Kirk practice?
The practice location on file with NPPES is in Boulder, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Kirk?
The National Provider Identifier (NPI) for John Kirk is 1851330435, 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 2007-07-08.