Brian J. Chang, M.D.
NPI 1629335567ActiveIndividual· Ophthalmology· Mission Hills, CA
Ophthalmology (M.D.) in Mission Hills, California, trained at University of California, San Diego School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $149,596 for 2,938 claims, against $65,772 paid for services in 2024. Glaukos Corporation was the largest of 2 companies reporting payments in 2025, $402.48 in all, mostly food and beverage.
Overview
| NPI | 1629335567 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 17, 2012 |
| Last updated in NPPES | Jan 25, 2024 |
| Certified by provider | Jan 25, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A128360 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 311 |
|---|---|
| Services billed | 766 across 21 procedure codes |
| Paid by Medicare | $65,772 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,938 · 5,142 30-day fills |
|---|---|
| Patients | 757 |
| Total drug cost | $149,596 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Ophthalmology |
Medical group
- Providence Facey Medical FoundationValencia, CA · 385 clinicians
Industry payments (Open Payments)
- 2025$402.48 · 5 payments from 2 companies
- 2024$40.94 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaukos Corporation | $267.01 | 4 |
| Amgen Inc. | $135.47 | 1 |
What the 2025 payments were for
- Food and Beverage$402.48 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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