Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ronald Lynn Allen, PH.D.

Health Service Psychologist in Knoxville, TN · enumerated 2007.

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

National Provider Identifier

1184753311

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Registry record

Entity type Individual (Type 1)

Name Ronald Lynn Allen

Credential PH.D.

Sex Male

Practice address Knoxville, TN, 37923

Phone (865) 691-2425

Fax (865) 531-8440

Enumeration date Mar 5, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TH0100X Health Service Psychologist Behavioral Health & Social Service Providers · License P1392 (TN) Primary

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

Other identifiers

Identifier	Type	State	Issuer
2005918	Other	TN	BLUE CROSS BLUE SHIELD
3680005	Medicaid	TN	-
P1392	Other	TN	PSYCHOLOGIST LICENSE

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 Ronald Allen?

Ronald Allen is registered in NPPES with the primary taxonomy of Health Service 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 2007-07-08.