NPI Portal NPI Lookup & Verification

Mark Struble, OD

Mark Struble is a Optometrist provider (Optometrist) practicing in Wagner, SD, registered in the NPPES registry with NPI 1477575827 since 2006. The credential OD stands for Doctor of Optometry.

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NPI 1477575827
Entity type Individual (Type 1)
Name Mark Struble
Credential OD
Sex Male
Practice address 121 S MAIN AVE, Wagner, SD, 57380
Phone 6053843565
Enumeration date 2006-07-24
Last updated in NPPES 2007-11-30

Taxonomy & licenses

Taxonomy code Specialty Primary License State
152W00000X Optometrist Primary 582 SD

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
9202017 Medicaid SD
Copy-ready billing details
Provider: Mark Struble, OD
NPI: 1477575827
Taxonomy: 152W00000X (Optometrist)
Address: 121 S MAIN AVE, Wagner, SD, 57380

Verify this record

Cross-check NPI 1477575827 against the authoritative CMS record: view Mark Struble on the official NPPES registry .

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 or validate an NPI number.

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 Mark Struble?
Mark Struble 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-11-30.