Karen Chee, M.D.
NPI 1487637310ActiveIndividual· Internal Medicine, Hematology & Oncology· San Mateo, CA
Internal Medicine, Hematology & Oncology (M.D.) in San Mateo, California, trained at University of California, Davis School of Medicine (class of 2001). In 2024 Medicare paid $2,804,787 for 455 patients, and Part D covered 806 of their prescriptions, 64% of them generic. Abbvie Inc. was the largest of 4 companies reporting payments in 2024, $478.29 in all, mostly food and beverage.
Overview
| NPI | 1487637310 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 23, 2005 |
| Last updated in NPPES | Jun 2, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A81314 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 455 |
|---|---|
| Services billed | 159,065 across 111 procedure codes |
| Paid by Medicare | $2,804,787 |
Part D prescriptions in 2024
| Prescriptions (claims) | 806 · 1,071 30-day fills |
|---|---|
| Patients | 144 |
| Total drug cost | $2,865,791 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology |
| Telehealth | Offers telehealth |
Medical group
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
Hospital affiliations
- Peninsula Medical CenterBurlingame, CA
- Sequoia HospitalRedwood City, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2024$478.29 · 5 payments from 4 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $151.34 | 2 |
| Ipsen Biopharmaceuticals, Inc | $150.38 | 1 |
| Celgene Corporation | $100.87 | 1 |
| Secura Bio, Inc. | $75.70 | 1 |
What the 2024 payments were for
- Food and Beverage$478.29 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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