Thelzy Ruth Zamarron, OD
NPI 1902525694ActiveIndividual· Optometrist· Laredo, TX
Optometrist (OD) with Laura Mendiola, MD, PLLC, practicing in Laredo, Texas. Their prescriptions cost Medicare Part D more than their services did: $137,879 for 800 claims, against $31,424 paid for services in 2024. Abbvie Inc. was the largest of 5 companies reporting payments in 2025, $181.84 in all, mostly food and beverage.
Overview
| NPI | 1902525694 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Aug 25, 2022 |
| Last updated in NPPES | Aug 25, 2022 |
| Certified by provider | Aug 25, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 10538T | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 237 |
|---|---|
| Services billed | 549 across 11 procedure codes |
| Paid by Medicare | $31,424 |
Part D prescriptions in 2024
| Prescriptions (claims) | 800 · 1,281 30-day fills |
|---|---|
| Patients | 292 |
| Total drug cost | $137,879 |
| Generic share | 60% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Optometry |
Medical group
- Laura Mendiola, MD, PLLCLaredo, TX · 2 clinicians
Industry payments (Open Payments)
- 2025$181.84 · 9 payments from 5 companies
- 2024$328.19 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $59.32 | 3 |
| Alcon Vision LLC | $56.44 | 3 |
| Bausch & Lomb Americas Inc. | $22.97 | 1 |
| Astellas Pharma US Inc | $22.32 | 1 |
| Thea Pharma Inc. | $20.79 | 1 |
What the 2025 payments were for
- Food and Beverage$181.84 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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