Alexander C. Chang, MD
NPI 1497808760ActiveIndividual· Ophthalmology· Pittsburgh, PA
Ophthalmology (MD) in Pittsburgh, Pennsylvania, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $640,790 for 2,803 claims, against $397,908 paid for services in 2024. Astellas Pharma US Inc was the largest of 7 companies reporting payments in 2025, $239.77 in all, mostly food and beverage.
Overview
| NPI | 1497808760 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 19, 2007 |
| Last updated in NPPES | Jan 28, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | MD019796E | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,837 |
|---|---|
| Services billed | 5,880 across 50 procedure codes |
| Paid by Medicare | $397,908 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,803 · 5,003 30-day fills |
|---|---|
| Patients | 695 |
| Total drug cost | $640,790 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Ophthalmology |
Medical group
- Alexander Chang MD PCPittsburgh, PA · 8 clinicians
Industry payments (Open Payments)
- 2025$239.77 · 9 payments from 7 companies
- 2024$195.39 · 10 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $60.89 | 2 |
| Tarsus Pharmaceuticals, Inc. | $55.69 | 2 |
| Regeneron Healthcare Solutions, Inc. | $36.06 | 1 |
| Alcon Vision LLC | $27.19 | 1 |
| Thea Pharma Inc. | $22.35 | 1 |
What the 2025 payments were for
- Food and Beverage$239.77 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 148 ophthalmologists in Pittsburgh · All ophthalmologists in Pennsylvania