Jenna Withrow, PA-C
NPI 1356813299ActiveIndividual· Physician Assistant· Santa Barbara, CA
Physician Assistant (PA-C) with William R. Gallivan, Jr., M.D., Inc., practicing in Santa Barbara, California. 107 Medicare patients in 2024, $35,564 paid; all of their 62 Part D prescriptions were generic. Stryker Corporation was the largest of 2 companies reporting payments in 2025, $451.20 in all, mostly food and beverage. Lists Santa Barbara Cottage Hospital as a hospital affiliation.
Overview
| NPI | 1356813299 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Dec 17, 2018 |
| Last updated in NPPES | May 5, 2026 |
| Certified by provider | May 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 56187 | 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 | 107 |
|---|---|
| Services billed | 2,921 across 21 procedure codes |
| Paid by Medicare | $35,564 |
Part D prescriptions in 2024
| Prescriptions (claims) | 62 · 62 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $395.29 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- William R. Gallivan, Jr., M.D., Inc.Santa Barbara, CA · 4 clinicians
Hospital affiliation
- Santa Barbara Cottage HospitalSanta Barbara, CA
Industry payments (Open Payments)
- 2025$451.20 · 8 payments from 2 companies
- 2024$129.58 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $301.73 | 7 |
| Bioventus LLC | $149.47 | 1 |
What the 2025 payments were for
- Food and Beverage$451.20 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other physician assistants in Santa Barbara
- 1063468338
- 1164501649
- 1194419002
- 1215482179
- 1225583735
- 1235408352
- 1235457466
- 1245892660
- 1245998004
- 1376176164
- 1427603539
- 1457976144
All 109 physician assistants in Santa Barbara · All physician assistants in California