Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carl Louie Gunnard Grahn, PSY.D.

Psychologist in Fort Worth, TX · enumerated 2021.

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

National Provider Identifier

1912590167

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Registry record

Entity type Individual (Type 1)

Name Carl Louie Gunnard Grahn

Credential PSY.D.

Sex Male

Practice address 2201 Se Loop 820, Fort Worth, TX, 76119

Phone (800) 443-9672

Enumeration date Feb 18, 2021

Last updated in NPPES Oct 22, 2021

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 38748 (TX) 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 Carl Grahn?

Carl Grahn 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 2021-10-22.