Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ross G Olness, D.D.S.

Dentist in Willmar, MN · enumerated 2007.

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

National Provider Identifier

1659579043

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Registry record

Entity type Individual (Type 1)

Name Dr. Ross G Olness

Credential D.D.S.

Sex Male

Practice address 1604 1st St S, Skylark Center, Willmar, MN, 56201

Phone (320) 231-1739

Enumeration date Jul 6, 2007

Last updated in NPPES Aug 2, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License D12383 (MN) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

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Frequently asked questions

Is NPI 1659579043 active?

Yes, as of the latest NPPES snapshot, NPI 1659579043 is active (record last updated 2007-08-02).

How do I verify Ross Olness's NPI record?

Cross-check NPI 1659579043 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-02.