Mark D. Hahn, O.D.
NPI 1528055969ActiveIndividual· Optometrist· Washington, IL
Optometrist (O.D.) in Washington, Illinois, trained at Illinois College of Optometry at Chicago (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $33,813 for 281 claims, against $21,291 paid for services in 2024. Coopervision Inc. reported $14.22 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1528055969 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Sep 30, 2005 |
| Last updated in NPPES | Jan 4, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 04600009257 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 151 |
|---|---|
| Services billed | 1,238 across 17 procedure codes |
| Paid by Medicare | $21,291 |
Part D prescriptions in 2024
| Prescriptions (claims) | 281 · 595 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $33,813 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Optometry |
Medical group
- J A K Enterprises IncSpringfield, IL · 25 clinicians
Industry payments (Open Payments)
- 2025$14.22 · 1 payment from 1 company
- 2024$96.37 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coopervision Inc. | $14.22 | 1 |
What the 2025 payments were for
- Food and Beverage$14.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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