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

Mr. Dirk Jason Warner, OD

Q: What is the NPI number for Dirk Warner?

The National Provider Identifier (NPI) for Dirk Warner is 1558341768, a Type 1 (individual) record in the CMS NPPES registry.

Optometrist in Alliance, OH · enumerated 2006 · practices at Dr. Dirk J Warner Od, Inc..

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

National Provider Identifier

1558341768

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Registry record

Entity type Individual (Type 1)

Name Mr. Dirk Jason Warner

Credential OD

Sex Male

Practice address Alliance, OH, 44601

Phone (330) 821-4362

Fax (330) 821-4348

Enumeration date Jan 23, 2006

Last updated in NPPES Feb 8, 2011

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 OH4886T1751 (OH) 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
48791	Other	OH	DAVIS VISION
08312	Other	OH	SPECTRA
1336397470	Other	OH	NPI

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Dirk Warner?

The National Provider Identifier (NPI) for Dirk Warner is 1558341768, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dirk Warner practice?

The practice location on file with NPPES is in Alliance, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Dr. Dirk J Warner Od, Inc. Optometrist · Alliance, OH NPI 1336397470

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-08.