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

Dr. Troy Wayne Crist, O.D.

Optometrist in Madisonville, KY · enumerated 2006.

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

National Provider Identifier

1447330758

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Registry record

Entity type Individual (Type 1)

Name Dr. Troy Wayne Crist

Credential O.D.

Sex Male

Practice address Madisonville, KY, 42431

Phone (270) 825-3937

Fax (270) 326-2020

Enumeration date Oct 17, 2006

Last updated in NPPES Dec 15, 2014

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1237DT (KY) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
77012375	Medicaid	KY	-
000000340384	Other	KY	BC/BS PIN
1464026	Other	KY	UMWA PIN
201228094	Other	KY	TAX ID #
77902104	Medicaid	KY	-
3554179	Other	KY	AETNA PIN
9346900	Other	KY	PRINCIPAL FINANCIAL GROUP

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 Troy Crist?

Troy Crist is registered in NPPES with the primary taxonomy of Optometrist. 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 2014-12-15.