Eric Leon Tam, MD
NPI 1053739805ActiveIndividual· Internal Medicine, Hematology & Oncology· Los Angeles, CA
Internal Medicine, Hematology & Oncology (MD) with Usc Care Medical Group Inc, practicing in Los Angeles, California. Their prescriptions cost Medicare Part D more than their services did: $2,621,770 for 603 claims, against $57,767 paid for services in 2024. Daiichi Sankyo Inc. was the largest of 16 companies reporting payments in 2025, $1,492 in all, mostly food and beverage. Lists Keck Hospital of Usc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1053739805 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2014 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Aug 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A139987 | CA |
| Internal Medicine | 207R00000X | A139987 | 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 | 111 |
|---|---|
| Services billed | 857 across 17 procedure codes |
| Paid by Medicare | $57,767 |
Part D prescriptions in 2024
| Prescriptions (claims) | 603 · 696 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $2,621,770 |
| Generic share | 60% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliations
- Keck Hospital of UscLos Angeles, CA
- Los Angeles General Medical CenterLos Angeles, CA
Other facilities
- Bounteous Home Health, Inc.Home health agency · Glendale, CA
Industry payments (Open Payments)
- 2025$1,492 · 37 payments from 16 companies
- 2024$364.65 · 16 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Daiichi Sankyo Inc. | $857.52 | 10 |
| Novartis Pharmaceuticals Corporation | $109.32 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $69.41 | 3 |
| Beone Medicines USA, Inc. | $65.72 | 3 |
| Astellas Pharma US Inc | $63.53 | 2 |
What the 2025 payments were for
- Food and Beverage$842.33 · 36 payments
- Consulting Fee$650.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other hematologist-oncologists in Los Angeles
- 1023043189
- 1023243748
- 1023371515
- 1043233760
- 1093074106
- 1093963712
- 1104039197
- 1114977071
- 1124462486
- 1134153745
- 1134159775
- 1144607904
All 178 hematologist-oncologists in Los Angeles · All hematologist-oncologists in California