Kristine Nguyen, PA-C
NPI 1902461189ActiveIndividual· Physician Assistant, Medical· Irvine, CA
Physician Assistant, Medical (PA-C) in Irvine, California, trained at Touro Un College of Osteopathic Medicine, Vallejo (class of 2019). Their prescriptions cost Medicare Part D more than their services did: $290,362 for 610 claims, against $173,160 paid for services in 2024. Janssen Biotech, Inc. was the largest of 16 companies reporting payments in 2025, $2,540 in all, mostly food and beverage.
Overview
| NPI | 1902461189 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | May 3, 2019 |
| Last updated in NPPES | Dec 9, 2020 |
| Certified by provider | Dec 9, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 56974 | 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 | 270 |
|---|---|
| Services billed | 1,994 across 71 procedure codes |
| Paid by Medicare | $173,160 |
Part D prescriptions in 2024
| Prescriptions (claims) | 610 · 692 30-day fills |
|---|---|
| Patients | 156 |
| Total drug cost | $290,362 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Touro Un College of Osteopathic Medicine, Vallejo |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Physician Assistant |
Medical group
- Csi Medical GroupFullerton, CA · 111 clinicians
Hospital affiliation
- Washington HospitalFremont, CA
Industry payments (Open Payments)
- 2025$2,540 · 111 payments from 16 companies
- 2024$7,566 · 352 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $402.06 | 17 |
| Leo Pharma Inc. | $328.17 | 23 |
| Abbvie Inc. | $308.68 | 14 |
| Galderma Laboratories, L.P. | $278.14 | 8 |
| Regeneron Healthcare Solutions, Inc. | $257.12 | 9 |
What the 2025 payments were for
- Food and Beverage$2,425 · 109 payments
- Education$115.26 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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