Jaewoo Pak, M.D.
NPI 1962567321ActiveIndividual· Pain Medicine, Pain Medicine· Irvine, CA
Pain Medicine, Pain Medicine (M.D.) in Irvine, California, trained at University of Southern California Keck School of Medicine (class of 1992). 225 Medicare patients in 2024, $1,776,517 paid; nearly all of their 384 Part D prescriptions were generic (91%). Lilly USA, LLC reported $19.51 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1962567321 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 26, 2006 |
| Last updated in NPPES | Jun 17, 2021 |
| Certified by provider | Jun 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pain Medicine, Pain Medicine Primary | 208VP0000X | G077617 | CA |
| Internal Medicine | 207R00000X | G077617 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 225 |
|---|---|
| Services billed | 49,167 across 12 procedure codes |
| Paid by Medicare | $1,776,517 |
Part D prescriptions in 2024
| Prescriptions (claims) | 384 · 496 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $33,290 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pain Management |
Industry payments (Open Payments)
- 2025$19.51 · 1 payment from 1 company
- 2024$66.87 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $19.51 | 1 |
What the 2025 payments were for
- Food and Beverage$19.51 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Pain Medicine, Pain Medicine providers in Irvine
- 1902177231
- 1619797263
- 1316320864
- 1467522664