Jimmy J.W. Pak, MD
NPI 1881819258ActiveIndividual· Surgery, Vascular Surgery· Oakland, CA
Surgery, Vascular Surgery (MD) in Oakland, California, trained at New York Medical College (class of 1999). 19 Medicare patients in 2024, $3,149 paid; nearly all of their 60 Part D prescriptions were generic (98%). W. L. Gore & Associates, Inc. reported $224.02 in payments in 2025, mostly education.
Overview
| NPI | 1881819258 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2007 |
| Last updated in NPPES | Dec 9, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | A77390 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 41 across 18 procedure codes |
| Paid by Medicare | $3,149 |
Part D prescriptions in 2024
| Prescriptions (claims) | 60 · 146 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $1,621 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Vascular Surgery |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$224.02 · 1 payment from 1 company
- 2024$241.43 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| W. L. Gore & Associates, Inc. | $224.02 | 1 |
What the 2025 payments were for
- Education$224.02 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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