Sierra Regadanz
NPI 1871158832ActiveIndividual· Physician Assistant· Roseville, CA
Physician Assistant in Roseville, California, licensed in CA, with an NPI issued in May 2019. Enrolled in Medicare as practitioner - physician assistant. Jazz Pharmaceuticals Inc. was the largest of 2 companies reporting payments in 2025, $279.03 in all, mostly education.
Overview
| NPI | 1871158832 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | May 6, 2019 |
| Last updated in NPPES | Nov 21, 2025 |
| Certified by provider | Nov 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA61828 | 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) |
|---|
Industry payments (Open Payments)
- 2025$279.03 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Jazz Pharmaceuticals Inc. | $251.80 | 4 |
| Harmony Biosciences LLC | $27.23 | 1 |
What the 2025 payments were for
- Education$189.99 · 2 payments
- Food and Beverage$89.04 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 85 physician assistants in Roseville · All physician assistants in California