Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Frederick Phifer, PH.D.

Clinical Neuropsychologist in Louisville, KY · enumerated 2007.

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

National Provider Identifier

1619186467

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Registry record

Entity type Individual (Type 1)

Name Dr. James Frederick Phifer

Credential PH.D.

Sex Male

Practice address 440 Breckenridge Lane Ste 124, Louisville, KY, 40218

Phone (502) 491-9590

Fax (502) 491-9592

Enumeration date May 21, 2007

Last updated in NPPES Mar 22, 2011

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 0830 (KY) Primary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 817 (WV) Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 0830 (KY) Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 817 (WV) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 0830 (KY) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 James Phifer?

James Phifer is registered in NPPES with the primary taxonomy of Clinical Neuropsychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-22.