Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Keith O'Neil Rasmussen, OD

Optometrist in Sioux Falls, SD · enumerated 2005.

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

National Provider Identifier

1831195759

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Registry record

Entity type Individual (Type 1)

Name Keith O'Neil Rasmussen

Credential OD

Sex Male

Practice address 3101 W 57th St, Sioux Falls, SD, 57108

Phone (605) 361-3937

Fax (605) 371-7199

Enumeration date Jun 24, 2005

Last updated in NPPES May 21, 2024

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 602 (SD) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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

Where does Keith Rasmussen practice?

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

What is the NPI number for Keith Rasmussen?

The National Provider Identifier (NPI) for Keith Rasmussen is 1831195759, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-21.