Louis W. Mastrian, O.D.
NPI 1255314043ActiveIndividual· Optometrist· Hermitage, PA
Optometrist (O.D.) in Hermitage, Pennsylvania, trained at University of Missouri St Louis - School of Optometry (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $34,240 for 228 claims, against $10,471 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 2 companies reporting payments in 2025, $37.84 in all, mostly food and beverage.
Overview
| NPI | 1255314043 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Nov 25, 2005 |
| Last updated in NPPES | Sep 6, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | OEG001321 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 103 |
|---|---|
| Services billed | 220 across 15 procedure codes |
| Paid by Medicare | $10,471 |
Part D prescriptions in 2024
| Prescriptions (claims) | 228 · 452 30-day fills |
|---|---|
| Patients | 70 |
| Total drug cost | $34,240 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | University of Missouri St Louis - School of Optometry |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Optometry |
Medical group
- Mastrian Eyecare, LLCHermitage, PA · 3 clinicians
Industry payments (Open Payments)
- 2025$37.84 · 2 payments from 2 companies
- 2024$105.66 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $21.22 | 1 |
| Alcon Vision LLC | $16.62 | 1 |
What the 2025 payments were for
- Food and Beverage$37.84 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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