Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Caleb Corwin, PH.D.

Clinical Psychologist in Knoxville, TN · enumerated 2008.

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

National Provider Identifier

1215184668

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Registry record

Entity type Individual (Type 1)

Name Caleb Corwin

Credential PH.D.

Sex Male

Practice address 2018 Western Ave, Knoxville, TN, 37921

Phone (865) 544-0406

Fax (865) 544-0480

Enumeration date Aug 27, 2008

Last updated in NPPES Dec 15, 2016

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3303 (PROVISIONAL) (TN) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License P3303 (TN) Primary

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

What specialty is Caleb Corwin?

Caleb Corwin is registered in NPPES with the primary taxonomy of Clinical 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 2016-12-15.