Grace K. Nguyen
NPI 1285111575ActiveIndividual· Physician Assistant· Pomona, CA
Physician Assistant with Southern California Permanente Medical Group, practicing in Pomona, California. In 2024 Medicare paid $2,165,550 for 131 patients, and Part D covered 342 of their prescriptions, 89% of them generic. Janssen Pharmaceuticals, Inc was the largest of 2 companies reporting payments in 2025, $92.18 in all, mostly food and beverage.
Overview
| NPI | 1285111575 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jul 19, 2018 |
| Last updated in NPPES | Sep 26, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA55878 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 2,177 across 32 procedure codes |
| Paid by Medicare | $2,165,550 |
Part D prescriptions in 2024
| Prescriptions (claims) | 342 · 383 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $6,065 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$92.18 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $47.09 | 2 |
| Xeris Pharmaceuticals, Inc. | $45.09 | 3 |
What the 2025 payments were for
- Food and Beverage$92.18 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 205 physician assistants in Pomona · All physician assistants in California