Heather S. Chang, M.D.
NPI 1982898409ActiveIndividual· Ophthalmology· Arcadia, CA
Ophthalmology (M.D.) in Arcadia, California, trained at University of California, San Diego School of Medicine (class of 2006). In 2024 Medicare paid $249,392 for 516 patients, and Part D covered 473 of their prescriptions, 63% of them generic. Alcon Vision LLC was the largest of 2 companies reporting payments in 2025, $42.79 in all, mostly food and beverage.
Overview
| NPI | 1982898409 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 28, 2007 |
| Last updated in NPPES | Nov 16, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A103063 | CA |
| Ophthalmology | 207W00000X | MD448260 | PA |
| Ophthalmology, Retina Specialist | 207WX0107X | 287240 | NY |
| Ophthalmology, Retina Specialist | 207WX0107X | MD448260 | PA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 516 |
|---|---|
| Services billed | 3,304 across 33 procedure codes |
| Paid by Medicare | $249,392 |
Part D prescriptions in 2024
| Prescriptions (claims) | 473 · 648 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $56,720 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Ophthalmology |
Medical group
- Peter Ho Win MD IncCity Of Industry, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$42.79 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $26.10 | 1 |
| Ani Pharmaceuticals, Inc. | $16.69 | 1 |
What the 2025 payments were for
- Food and Beverage$42.79 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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