John C. Kortenber Optometry PC
John C. Kortenber Optometry PC is a healthcare organization registered as Optometrist in Algona, IA, holding Type 2 (organization) NPI 1134172430 since 2006. The authorized official on file is John Kortenber, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1134172430 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | John C. Kortenber Optometry PC |
| Practice address | 112 N THORINGTON ST, Algona, IA, 50511 |
| Phone | 5153953937 |
| Fax | 5153953938 |
| Enumeration date | 2006-05-18 |
| Last updated in NPPES | 2023-03-07 |
Authorized official
| Name | John Kortenber |
|---|---|
| Title | President |
| Phone | 5153953937 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 152W00000X | Optometrist | Primary | 02341 | IA |
Copy-ready billing details
Provider: John C. Kortenber Optometry PC NPI: 1134172430 Taxonomy: 152W00000X (Optometrist) Address: 112 N THORINGTON ST, Algona, IA, 50511
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1821049586 | John Kortenber | Individual | Optometrist | Algona, IA |
Verify this record
Cross-check NPI 1134172430 against the authoritative CMS record: view John C. Kortenber Optometry PC on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
What is a Type 2 NPI?
What type of organization is John C. Kortenber Optometry PC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-03-07.