Peter Yuwei Chang, M.D.
NPI 1801107859ActiveIndividual· Ophthalmology· Waltham, MA
Ophthalmology (M.D.) in Waltham, Massachusetts, trained at Tufts University School of Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $5,091,156 for 2,367 claims, against $2,210,941 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 22 companies reporting payments in 2025, $201,125 in all, mostly speaking and faculty fees.
Overview
| NPI | 1801107859 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 24, 2010 |
| Last updated in NPPES | Sep 25, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 266201 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,024 |
|---|---|
| Services billed | 36,461 across 99 procedure codes |
| Paid by Medicare | $2,210,941 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,367 · 4,324 30-day fills |
|---|---|
| Patients | 484 |
| Total drug cost | $5,091,156 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Ophthalmology |
Medical group
- Massachusetts Eye Research and Surgery Institution PCWaltham, MA · 5 clinicians
Hospital affiliation
- Massachusetts Eye and Ear Infirmary -Boston, MA
Industry payments (Open Payments)
- 2025$201,125 · 248 payments from 22 companies
- 2024$204,144 · 215 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $109,594 | 107 |
| Regeneron Healthcare Solutions, Inc. | $48,432 | 27 |
| Ani Pharmaceuticals, Inc. | $20,039 | 27 |
| Astellas Pharma US Inc | $7,008 | 7 |
| X4 Pharmaceuticals, Inc. | $6,000 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$150,497 · 22 payments
- Honoraria$18,963 · 4 payments
- Travel and Lodging$10,601 · 42 payments
- Consulting Fee$8,680 · 4 payments
- Food and Beverage$7,885 · 174 payments
- Compensation for serving as faculty or as a speaker for a medical education program$4,500 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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