Michael L. Korthals, O.D.
NPI 1407880883ActiveIndividual· Optometrist· Mason City, IA
Optometrist (O.D.) in Mason City, Iowa, trained at Illinois College of Optometry at Chicago (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $337,188 for 515 claims, against $133,405 paid for services in 2024. Lkc Technologies, Inc. reported $32.22 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1407880883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Dec 14, 2023 |
| Certified by provider | Dec 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 02146 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 626 |
|---|---|
| Services billed | 3,045 across 23 procedure codes |
| Paid by Medicare | $133,405 |
Part D prescriptions in 2024
| Prescriptions (claims) | 515 · 976 30-day fills |
|---|---|
| Patients | 125 |
| Total drug cost | $337,188 |
| Generic share | 53% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Optometry |
Industry payments (Open Payments)
- 2025$32.22 · 1 payment from 1 company
- 2024$12.62 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lkc Technologies, Inc. | $32.22 | 1 |
What the 2025 payments were for
- Food and Beverage$32.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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