Sienna Corbin, PA-C
NPI 1508580820ActiveIndividual· Physician Assistant· Lompoc, CA
Physician Assistant (PA-C) in Lompoc, California, licensed in CA, with an NPI issued in September 2022. Mostly services rather than prescriptions: Medicare paid $10,407 for 96 patients in 2024, with only 49 Part D claims. Otsuka America Pharmaceutical, Inc. was the largest of 6 companies reporting payments in 2025, $196.05 in all, mostly food and beverage. Lists Lompoc Valley Medical Center as a hospital affiliation.
Overview
| NPI | 1508580820 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Sep 29, 2022 |
| Last updated in NPPES | Sep 15, 2025 |
| Certified by provider | Sep 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 66113 | 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); Practitioner - Nurse Practitioner (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 96 |
|---|---|
| Services billed | 127 across 13 procedure codes |
| Paid by Medicare | $10,407 |
Part D prescriptions in 2024
| Prescriptions (claims) | 49 · 52 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $2,419 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
Hospital affiliation
- Lompoc Valley Medical CenterLompoc, CA
Industry payments (Open Payments)
- 2025$196.05 · 10 payments from 6 companies
- 2024$182.89 · 8 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $64.54 | 4 |
| Exact Sciences Corporation | $53.31 | 2 |
| Abbvie Inc. | $30.53 | 1 |
| Lundbeck LLC | $18.53 | 1 |
| Astrazeneca Pharmaceuticals LP | $14.71 | 1 |
What the 2025 payments were for
- Food and Beverage$196.05 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 physician assistants in Lompoc · All physician assistants in California