Brian John Costello, PHYSICIAN ASSISTANT
NPI 1396833257ActiveIndividual· Physician Assistant, Surgical· Walnut Creek, CA
Physician Assistant, Surgical (PHYSICIAN ASSISTANT) with Permanente Medical Group Inc, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $16,631 for 555 claims, against $865.39 paid for services in 2024. Zimmer Biomet Holdings, Inc. reported $42.80 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1396833257 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHYSICIAN ASSISTANT |
| Sole proprietor | No |
| NPI issued | Oct 10, 2006 |
| Last updated in NPPES | Jan 23, 2023 |
| Certified by provider | Jan 23, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | PA15532 | 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 | 12 |
|---|---|
| Services billed | 44 across 8 procedure codes |
| Paid by Medicare | $865.39 |
Part D prescriptions in 2024
| Prescriptions (claims) | 555 · 558 30-day fills |
|---|---|
| Patients | 163 |
| Total drug cost | $16,631 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Industry payments (Open Payments)
- 2025$42.80 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $42.80 | 1 |
What the 2025 payments were for
- Food and Beverage$42.80 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 surgical physician assistants in Walnut Creek · All surgical physician assistants in California