Alexander Francis Chen
NPI 1528594546ActiveIndividual· Ophthalmology· Pasadena, CA
Ophthalmology in Pasadena, California, trained at University of Southern California Keck School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $964,828 for 9,123 claims, against $51,595 paid for services in 2024. Regeneron Healthcare Solutions, Inc. reported $121.14 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1528594546 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | May 11, 2017 |
| Last updated in NPPES | Dec 30, 2024 |
| Certified by provider | Dec 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A171467 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 206 |
|---|---|
| Services billed | 600 across 27 procedure codes |
| Paid by Medicare | $51,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,123 · 16,432 30-day fills |
|---|---|
| Patients | 1,689 |
| Total drug cost | $964,828 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Ophthalmology |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$121.14 · 1 payment from 1 company
- 2024$160.05 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $121.14 | 1 |
What the 2025 payments were for
- Food and Beverage$121.14 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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