Thu T. To, OD
NPI 1508942376ActiveIndividual· Optometrist· Hinsdale, IL
Optometrist (OD) in Hinsdale, Illinois, trained at Illinois College of Optometry at Chicago (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $24,371 for 60 claims, against $11,034 paid for services in 2024. Harrow Eye, LLC was the largest of 4 companies reporting payments in 2025, $193.86 in all, mostly food and beverage.
Overview
| NPI | 1508942376 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | Yes |
| NPI issued | Oct 27, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | — | IL |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 95 |
|---|---|
| Services billed | 188 across 18 procedure codes |
| Paid by Medicare | $11,034 |
Part D prescriptions in 2024
| Prescriptions (claims) | 60 · 118 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $24,371 |
| Generic share | 33% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Optometry |
Medical group
- Avery Vision Center PCSaint Johns, MI · 6 clinicians
Industry payments (Open Payments)
- 2025$193.86 · 6 payments from 4 companies
- 2024$61.40 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Harrow Eye, LLC | $81.57 | 1 |
| Johnson & Johnson Vision Care, Inc. | $51.25 | 2 |
| Coopervision Inc. | $32.96 | 2 |
| Alcon Vision LLC | $28.08 | 1 |
What the 2025 payments were for
- Food and Beverage$193.86 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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