James C. Liang, M.D.
NPI 1578541983ActiveIndividual· Ophthalmology· Oak Lawn, IL
Ophthalmology (M.D.) in Oak Lawn, Illinois, trained at University of California, San Diego School of Medicine (class of 1974). In 2024 Medicare paid $411,498 for 182 patients, and Part D covered 632 of their prescriptions, 73% of them generic. Regeneron Healthcare Solutions, Inc. was the largest of 2 companies reporting payments in 2025, $262.74 in all, mostly food and beverage.
Overview
| NPI | 1578541983 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 5, 2006 |
| Last updated in NPPES | Jul 5, 2023 |
| Certified by provider | Jul 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 036051267 | 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 | 182 |
|---|---|
| Services billed | 9,137 across 17 procedure codes |
| Paid by Medicare | $411,498 |
Part D prescriptions in 2024
| Prescriptions (claims) | 632 · 974 30-day fills |
|---|---|
| Patients | 125 |
| Total drug cost | $17,789 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1974 |
| Medicare specialty | Ophthalmology |
Medical group
- Retinal Vitreal Consultants LtdChicago, IL · 4 clinicians
Industry payments (Open Payments)
- 2025$262.74 · 6 payments from 2 companies
- 2024$145.27 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $200.16 | 3 |
| Apellis Pharmaceuticals, Inc. | $62.58 | 3 |
What the 2025 payments were for
- Food and Beverage$262.74 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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