Brian Jonathan Nguyen, MD
NPI 1912469792ActiveIndividual· Ophthalmology· Valencia, CA
Ophthalmology (MD) with Mid Peninsula Eye Physicians and Surgeons Medical Group, practicing in Valencia, California. Their prescriptions cost Medicare Part D more than their services did: $425,460 for 1,653 claims, against $248,267 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 14 companies reporting payments in 2025, $964.60 in all, mostly food and beverage. Lists Peninsula Medical Center as a hospital affiliation.
Overview
| NPI | 1912469792 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 2, 2019 |
| Last updated in NPPES | Jan 30, 2024 |
| Certified by provider | Jan 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | MT221626 | 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 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 | 708 |
|---|---|
| Services billed | 3,520 across 53 procedure codes |
| Paid by Medicare | $248,267 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,653 · 2,737 30-day fills |
|---|---|
| Patients | 517 |
| Total drug cost | $425,460 |
| Generic share | 55% of claims |
Education and affiliations
| Medicare specialty | Ophthalmology |
|---|
Medical group
- Mid Peninsula Eye Physicians and Surgeons Medical GroupSan Mateo, CA · 6 clinicians
Hospital affiliation
- Peninsula Medical CenterBurlingame, CA
Industry payments (Open Payments)
- 2025$964.60 · 46 payments from 14 companies
- 2024$506.47 · 18 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $165.37 | 12 |
| Abbvie Inc. | $160.10 | 9 |
| Mallinckrodt Hospital Products Inc. | $98.01 | 4 |
| Alcon Vision LLC | $84.55 | 3 |
| Harrow Eye, LLC | $78.08 | 2 |
What the 2025 payments were for
- Food and Beverage$964.60 · 46 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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