Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robyn Nicole Clausen, OD

Optometrist in Billings, MT · enumerated 2005.

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

National Provider Identifier

1427046713

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Registry record

Entity type Individual (Type 1)

Name Dr. Robyn Nicole Clausen

Credential OD

Sex Female

Practice address 2675 Central Ave, Suite L-1, Billings, MT, 59102

Phone (406) 656-8886

Fax (406) 655-9691

Enumeration date Oct 11, 2005

Last updated in NPPES Feb 6, 2017

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 769OPT (MT) 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
28281	Other	MT	BCBS
0483684	Medicaid	MT	-
P00256789	Other	MT	RAILROAD 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 Robyn Clausen?

Robyn Clausen 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-06.