Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory F Zink, O.D.

Optometrist in Fort Wayne, IN · enumerated 2006.

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

National Provider Identifier

1144232794

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Registry record

Entity type Individual (Type 1)

Name Gregory F Zink

Credential O.D.

Sex Male

Practice address 321 E Wayne St, Fort Wayne, IN, 46802

Phone (260) 424-5656

Fax (260) 424-4511

Enumeration date Aug 12, 2006

Last updated in NPPES Jan 6, 2011

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 18002715A (IN) 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
000000083764	Other	IN	ANTHEM
200061280A	Medicaid	IN	-
2904870	Medicaid	OH	-

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 Gregory Zink?

Gregory Zink 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 2011-01-06.