Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher A Greer, DO

Ophthalmology Physician in Fort Smith, AR · enumerated 2006.

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

National Provider Identifier

1457379083

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher A Greer

Credential DO

Sex Male

Practice address 6801 Rogers Ave, Fort Smith, AR, 72903

Phone (479) 274-4400

Fax (479) 274-4499

Enumeration date Jul 18, 2006

Last updated in NPPES Aug 28, 2015

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License N-8321 (AR) Primary

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
123076003	Medicaid	AR	—
180020678	Other	—	RR MEDICARE

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 Christopher Greer?

Christopher Greer is registered in NPPES with the primary taxonomy of Ophthalmology Physician. 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 2015-08-28.