John Nguyen, PA-C
NPI 1558924803ActiveIndividual· Physician Assistant· Redding, CA
Physician Assistant (PA-C) with Native American Mental Health Services Corporation, practicing in Redding, California. Their prescriptions cost Medicare Part D more than their services did: $179,446 for 790 claims, against $15,666 paid for services in 2024. Alkermes, Inc. was the largest of 14 companies reporting payments in 2025, $2,027 in all, mostly food and beverage.
Overview
| NPI | 1558924803 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 22, 2019 |
| Last updated in NPPES | Sep 13, 2021 |
| Certified by provider | Aug 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 57004 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 37 |
|---|---|
| Services billed | 173 across 4 procedure codes |
| Paid by Medicare | $15,666 |
Part D prescriptions in 2024
| Prescriptions (claims) | 790 · 1,256 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $179,446 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Native American Mental Health Services CorporationMonterey, CA · 65 clinicians
Industry payments (Open Payments)
- 2025$2,027 · 62 payments from 14 companies
- 2024$2,561 · 87 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alkermes, Inc. | $361.00 | 10 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $268.33 | 8 |
| Janssen Pharmaceuticals, Inc | $205.21 | 4 |
| Vanda Pharmaceuticals Inc. | $196.09 | 3 |
| Abbvie Inc. | $185.01 | 10 |
What the 2025 payments were for
- Food and Beverage$2,027 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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