Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert A Mathaus, O.D.

Optometrist in Menomonee Falls, WI · enumerated 2006 · practices at Wisconsin Vision, LLC.

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

National Provider Identifier

1235194465

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert A Mathaus

Credential O.D.

Sex Male

Practice address N85w16033 Appleton Ave, Menomonee Falls, WI, 53051

Phone (262) 251-1900

Enumeration date Apr 19, 2006

Last updated in NPPES Jan 29, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2688 (WI) 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
38603007	Medicaid	WI	-
WI2688	Other	-	EYEMED VISION NO,

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

Where does Robert Mathaus practice?

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

What is the NPI number for Robert Mathaus?

The National Provider Identifier (NPI) for Robert Mathaus is 1235194465, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Wisconsin Vision, LLC Optometrist · Menomonee Falls, WI NPI 1982742177

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-29.