Thomas Michael Grischow, O.D.
NPI 1932132818ActiveIndividual· Optometrist· Warren, OH
Optometrist (O.D.) in Warren, Ohio, trained at Ohio State University - College of Optometry (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $210,323 for 1,680 claims, against $78,606 paid for services in 2024. Alcon Vision LLC was the largest of 11 companies reporting payments in 2025, $903.61 in all, mostly food and beverage.
Overview
| NPI | 1932132818 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Oct 22, 2026 |
| Certified by provider | Oct 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | OPT004457 | OH |
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 (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 691 |
|---|---|
| Services billed | 1,325 across 18 procedure codes |
| Paid by Medicare | $78,606 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,680 · 3,692 30-day fills |
|---|---|
| Patients | 459 |
| Total drug cost | $210,323 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | Ohio State University - College of Optometry |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Optometry |
Medical group
- Eye Care Associates, IncYoungstown, OH · 13 clinicians
Industry payments (Open Payments)
- 2025$903.61 · 33 payments from 11 companies
- 2024$580.74 · 24 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $275.54 | 9 |
| Abbvie Inc. | $171.58 | 12 |
| Johnson & Johnson Surgical Vision, Inc. | $103.66 | 1 |
| Bausch & Lomb Americas Inc. | $86.81 | 1 |
| Tarsus Pharmaceuticals, Inc. | $66.92 | 1 |
What the 2025 payments were for
- Food and Beverage$903.61 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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