Susan G. Vierling, M.D.
NPI 1306825930ActiveIndividual· Ophthalmology· Lombard, IL
Ophthalmology (M.D.) in Lombard, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1989). In 2024 Medicare paid $2,079,985 for 723 patients, and Part D covered 252 of their prescriptions, 73% of them generic. Astellas Pharma US Inc was the largest of 5 companies reporting payments in 2025, $176.43 in all, mostly food and beverage.
Overview
| NPI | 1306825930 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 12, 2006 |
| Last updated in NPPES | Dec 21, 2021 |
| Certified by provider | Dec 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 036091886 | 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 - Ophthalmology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 723 |
|---|---|
| Services billed | 29,034 across 49 procedure codes |
| Paid by Medicare | $2,079,985 |
Part D prescriptions in 2024
| Prescriptions (claims) | 252 · 384 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $12,395 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Ophthalmology |
Medical group
- Retina Institute of Illinois PCChicago, IL · 9 clinicians
Hospital affiliation
- Elmhurst Memorial HospitalElmhurst, IL
Industry payments (Open Payments)
- 2025$176.43 · 6 payments from 5 companies
- 2024$173.18 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $51.73 | 2 |
| Regeneron Healthcare Solutions, Inc. | $38.56 | 1 |
| Abbvie Inc. | $33.37 | 1 |
| Apellis Pharmaceuticals, Inc. | $29.29 | 1 |
| Ani Pharmaceuticals, Inc. | $23.48 | 1 |
What the 2025 payments were for
- Food and Beverage$176.43 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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