Mark J. Benjamin, MD
NPI 1366433138ActiveIndividual· Ophthalmology· La Grange Highlands, IL
Ophthalmology (MD) in La Grange Highlands, Illinois, trained at R Franklin University of Med & Sci/Chicago Medical School (class of 1993). In 2024 Medicare paid $171,313 for 758 patients, and Part D covered 355 of their prescriptions, 51% of them generic. Alcon Vision LLC was the largest of 8 companies reporting payments in 2025, $521.21 in all, mostly food and beverage.
Overview
| NPI | 1366433138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 2, 2005 |
| Last updated in NPPES | Feb 25, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 036095352 | 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 - Ophthalmology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 758 |
|---|---|
| Services billed | 1,481 across 29 procedure codes |
| Paid by Medicare | $171,313 |
Part D prescriptions in 2024
| Prescriptions (claims) | 355 · 494 30-day fills |
|---|---|
| Patients | 150 |
| Total drug cost | $52,037 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | R Franklin University of Med & Sci/Chicago Medical School |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Ophthalmology |
Hospital affiliation
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Industry payments (Open Payments)
- 2025$521.21 · 24 payments from 8 companies
- 2024$110,875 · 26 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $259.05 | 13 |
| Thea Pharma Inc. | $70.38 | 3 |
| Dompe US, Inc. | $52.64 | 2 |
| Glaukos Corporation | $50.60 | 1 |
| Amgen Inc. | $38.14 | 2 |
What the 2025 payments were for
- Food and Beverage$521.21 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in La Grange Highlands
- 1215087986
- 1134110422