Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joseph Klauer, OD
Optometrist in Dubuque, IA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558554816
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Registry record
Entity type Individual (Type 1)
Name Joseph Klauer
Credential OD
Sex Male
Practice address 1705 Delhi St, Dubuque, IA, 52001
Phone (563) 557-1010
Enumeration date Aug 21, 2007
Last updated in NPPES Mar 19, 2021
Taxonomy & licenses
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.
Frequently asked questions
What is the NPI number for Joseph Klauer?
The National Provider Identifier (NPI) for Joseph Klauer is 1558554816, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joseph Klauer practice?
The practice location on file with NPPES is in Dubuque, IA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Douglas Spyrison Optometrist · Dubuque, IA NPI 1871580498 Klauer Optical Co Eyewear Supplier · Dubuque, IA NPI 1902940166 Jeffrey Klauer Optician · Dubuque, IA NPI 1275726523 Stephen Kraus Optician · Dubuque, IA NPI 1316130677 Sarah Row Optician · Dubuque, IA NPI 1013100379 Rhonda Mcmahon Optician · Dubuque, IA NPI 1033302393 Jeremy Jordan Physical Therapist · Dubuque, IA NPI 1427345784 Douglas C. Spyrison, Od Clinic/Center · Dubuque, IA NPI 1285992362
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-19.