Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Robert John Alexejun, O.D.
Optometrist in Wausau, WI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235275009
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Registry record
Entity type Individual (Type 1)
Name Dr. Robert John Alexejun
Credential O.D.
Sex Male
Practice address 205 W Bridge St, Wausau, WI, 54401
Phone (715) 848-2020
Fax (715) 845-6669
Enumeration date Jan 29, 2007
Last updated in NPPES Feb 9, 2012
Taxonomy & licenses
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 |
|---|---|---|---|
| 4145690001 | Other | WI | NSC EYE WEAR DESIGNS LLP |
| 4900830001 | Other | WI | NSC EYECARE CTR OF WAUSAU |
| 38573100 | Medicaid | WI | - |
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.
Frequently asked questions
Where does Robert Alexejun practice?
The practice location on file with NPPES is in Wausau, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Robert Alexejun?
The National Provider Identifier (NPI) for Robert Alexejun is 1235275009, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-09.