Alyssa Lyn Gregorec, PA
NPI 1992432520ActiveIndividual· Physician Assistant· Pomona, CA
Physician Assistant (PA) with George K Shahinian M D Incorporated, practicing in Pomona, California. Part D covered 263 prescriptions written in 2024, 66% of them generic. Glaxosmithkline, LLC. was the largest of 13 companies reporting payments in 2025, $1,251 in all, mostly food and beverage. Lists Memorialcare Saddleback Medical Center as a hospital affiliation.
Overview
| NPI | 1992432520 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Aug 3, 2022 |
| Last updated in NPPES | Aug 3, 2022 |
| Certified by provider | Aug 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 263 · 330 30-day fills |
|---|---|
| Patients | 110 |
| Total drug cost | $46,807 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- George K Shahinian M D IncorporatedLaguna Beach, CA · 7 clinicians
Hospital affiliation
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2025$1,251 · 55 payments from 13 companies
- 2024$794.48 · 29 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $432.86 | 23 |
| Astrazeneca Pharmaceuticals LP | $227.52 | 8 |
| Genzyme Corporation | $194.17 | 8 |
| Insmed, Inc. | $73.01 | 4 |
| Sanofi-Aventis U.S. LLC | $57.48 | 1 |
What the 2025 payments were for
- Food and Beverage$1,193 · 54 payments
- Education$57.48 · 1 payment
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