Joseph Michael Mashinchi, P.A.
NPI 1184004913ActiveIndividual· Physician Assistant· Oakland, CA
Physician Assistant (P.A.) in Oakland, California, licensed in CA, with an NPI issued in June 2015. 142 Medicare patients in 2024, $16,264 paid; all of their 135 Part D prescriptions were generic. Organogenesis Inc. was the largest of 2 companies reporting payments in 2025, $48.59 in all, mostly food and beverage.
Overview
| NPI | 1184004913 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2015 |
| Last updated in NPPES | Sep 18, 2025 |
| Certified by provider | Sep 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 52558 | CA |
| Physician Assistant, Surgical | 363AS0400X | PA52558 | 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 | 142 |
|---|---|
| Services billed | 528 across 21 procedure codes |
| Paid by Medicare | $16,264 |
Part D prescriptions in 2024
| Prescriptions (claims) | 135 · 137 30-day fills |
|---|---|
| Patients | 88 |
| Total drug cost | $1,399 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$48.59 · 2 payments from 2 companies
- 2024$21.74 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organogenesis Inc. | $33.94 | 1 |
| Bioventus LLC | $14.65 | 1 |
What the 2025 payments were for
- Food and Beverage$48.59 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 174 physician assistants in Oakland · All physician assistants in California