Karen M. Yun, M.D.
NPI 1720519234ActiveIndividual· Internal Medicine, Medical Oncology· San Diego, CA
Internal Medicine, Medical Oncology (M.D.) with Regents of the University of California, practicing in San Diego, California. Their prescriptions cost Medicare Part D more than their services did: $560,525 for 446 claims, against $46,524 paid for services in 2024. E.R. Squibb & Sons, L.L.C. reported $114.98 in payments in 2024, mostly food and beverage. Lists Uc San Diego Health Hillcrest - Hillcrest Med Ctr as a hospital affiliation.
Overview
| NPI | 1720519234 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 26, 2017 |
| Last updated in NPPES | Nov 17, 2025 |
| Certified by provider | Nov 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | A158032 | 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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 94 |
|---|---|
| Services billed | 447 across 14 procedure codes |
| Paid by Medicare | $46,524 |
Part D prescriptions in 2024
| Prescriptions (claims) | 446 · 470 30-day fills |
|---|---|
| Patients | 64 |
| Total drug cost | $560,525 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of CaliforniaSan Diego, CA · 2,089 clinicians
Hospital affiliation
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Industry payments (Open Payments)
- 2024$114.98 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $114.98 | 1 |
What the 2024 payments were for
- Food and Beverage$114.98 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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