Mark Thomas Mentzer, OD
NPI 1184813305ActiveIndividual· Optometrist· Hiawatha, IA
Optometrist (OD) in Hiawatha, Iowa, trained at Illinois College of Optometry at Chicago (class of 1989). In 2024 Medicare paid $32,279 for 323 patients, and Part D covered 213 of their prescriptions, 53% of them generic. Rxsight Inc was the largest of 2 companies reporting payments in 2025, $110.42 in all, mostly food and beverage.
Overview
| NPI | 1184813305 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | Yes |
| NPI issued | Oct 24, 2007 |
| Last updated in NPPES | Jun 15, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 01912 | 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 | 323 |
|---|---|
| Services billed | 560 across 22 procedure codes |
| Paid by Medicare | $32,279 |
Part D prescriptions in 2024
| Prescriptions (claims) | 213 · 303 30-day fills |
|---|---|
| Patients | 70 |
| Total drug cost | $27,015 |
| Generic share | 53% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Optometry |
Industry payments (Open Payments)
- 2025$110.42 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Rxsight Inc | $91.28 | 1 |
| Johnson & Johnson Vision Care, Inc. | $19.14 | 1 |
What the 2025 payments were for
- Food and Beverage$110.42 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Optometrist providers in Hiawatha
- 1639189368
- 1952670937
- 1528312436
- 1932163946