Mathew Bryan Mergenthaler, O.D.
NPI 1568874907ActiveIndividual· Optometrist· Medford, WI
Optometrist (O.D.) in Medford, Wisconsin, trained at Illinois College of Optometry at Chicago (class of 2014). In 2024 Medicare paid $27,852 for 248 patients, and Part D covered 320 of their prescriptions, 64% of them generic. Tarsus Pharmaceuticals, Inc. was the largest of 3 companies reporting payments in 2025, $46.85 in all, mostly food and beverage.
Overview
| NPI | 1568874907 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | May 20, 2014 |
| Last updated in NPPES | Jan 7, 2026 |
| Certified by provider | Jan 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 3359 | WI |
| Optometrist | 152W00000X | 073539 | 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 (MN); Practitioner - Optometry (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 3,032 across 22 procedure codes |
| Paid by Medicare | $27,852 |
Part D prescriptions in 2024
| Prescriptions (claims) | 320 · 509 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $18,798 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Optometry |
Medical groups
- Shoptikal LLCAshwaubenon, WI · 189 clinicians
- Healthview Eye Care Center, SCColby, WI · 6 clinicians
- Healthview Eye Care Center-Medford SCMedford, WI · 6 clinicians
Industry payments (Open Payments)
- 2025$46.85 · 3 payments from 3 companies
- 2024$62.22 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tarsus Pharmaceuticals, Inc. | $19.17 | 1 |
| Coopervision Inc. | $13.97 | 1 |
| Alcon Vision LLC | $13.71 | 1 |
What the 2025 payments were for
- Food and Beverage$46.85 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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