Eileen Linda Chang, M.D.
NPI 1831543347ActiveIndividual· Ophthalmology, Glaucoma Specialist· New York, NY
Ophthalmology, Glaucoma Specialist (M.D.) in New York, New York, trained at Drexel University College of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $232,425 for 1,648 claims, against $97,770 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 7 companies reporting payments in 2025, $565.29 in all, mostly food and beverage.
Overview
| NPI | 1831543347 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 20, 2016 |
| Last updated in NPPES | Aug 1, 2025 |
| Certified by provider | Aug 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Glaucoma Specialist Primary | 207WX0009X | 315803-01 | NY |
| Ophthalmology, Uveitis and Ocular Inflammatory Disease | 207WX0108X | 315803-01 | NY |
| Ophthalmology | 207W00000X | 315803 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 348 |
|---|---|
| Services billed | 1,206 across 48 procedure codes |
| Paid by Medicare | $97,770 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,648 · 3,085 30-day fills |
|---|---|
| Patients | 321 |
| Total drug cost | $232,425 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Drexel University College of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Ophthalmology |
Medical groups
- Weill Medical College of CornellNew York, NY · 2,051 clinicians
- New York Queens Medicine and Surgery, P.C.Whitestone, NY · 401 clinicians
Hospital affiliations
- New York-Presbyterian HospitalNew York, NY
- New York-Presbyterian/QueensFlushing, NY
Industry payments (Open Payments)
- 2025$565.29 · 16 payments from 7 companies
- 2024$567.64 · 18 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $210.82 | 4 |
| Ani Pharmaceuticals, Inc. | $150.00 | 1 |
| Sun Pharmaceutical Industries Inc. | $83.20 | 5 |
| Oyster Point Pharma, Inc. | $45.86 | 2 |
| Bausch & Lomb Americas Inc. | $43.56 | 2 |
What the 2025 payments were for
- Food and Beverage$465.30 · 15 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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