Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Leon Patera, O.D.

Optometrist in Grand Rapids, MI · enumerated 2005.

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

National Provider Identifier

1245234731

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Leon Patera

Credential O.D.

Sex Male

Practice address 750 E Beltline Ave Ne, Grand Rapids, MI, 49525

Phone (616) 949-2600

Fax (616) 954-0213

Enumeration date Jun 13, 2005

Last updated in NPPES Jun 9, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901002424 (MI) 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
900C46507	Other	MI	BCBS
4249619	Medicaid	MI	-
410044294	Other	MI	MEDICARE RR

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 Gregory Patera?

Gregory Patera 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-09.