Charlene Sen-Yee Lee, MD
NPI 1831488337ActiveIndividual· Internal Medicine, Hematology & Oncology· San Jose, CA
Internal Medicine, Hematology & Oncology (MD) in San Jose, California, licensed in CA, with an NPI issued in April 2011. Their prescriptions cost Medicare Part D more than their services did: $7,128,028 for 1,962 claims, against $196,964 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 35 companies reporting payments in 2025, $3,714 in all, mostly food and beverage. Lists Good Samaritan Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1831488337 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2011 |
| Last updated in NPPES | May 11, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A128450 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 310 |
|---|---|
| Services billed | 55,832 across 49 procedure codes |
| Paid by Medicare | $196,964 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,962 · 3,347 30-day fills |
|---|---|
| Patients | 380 |
| Total drug cost | $7,128,028 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Hospital affiliations
- Good Samaritan HospitalSan Jose, CA
- Santa Clara Valley Medical CenterSan Jose, CA
Industry payments (Open Payments)
- 2025$3,714 · 143 payments from 35 companies
- 2024$2,911 · 124 payments from 32 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $588.20 | 31 |
| Janssen Biotech, Inc. | $372.93 | 13 |
| Novartis Pharmaceuticals Corporation | $254.31 | 10 |
| Beone Medicines USA, Inc. | $248.24 | 7 |
| Merck Sharp & Dohme LLC | $243.18 | 9 |
What the 2025 payments were for
- Food and Beverage$3,606 · 141 payments
- Education$108.10 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 hematologist-oncologists in San Jose · All hematologist-oncologists in California