Eric Tam, MD
Hematology & Oncology · Los Angeles, CANPI 1053739805
Payments from drug & device makers
Across 102 payments — averaging $306.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Syndax Pharmaceuticals, Inc.$18K
- Otsuka Pharmaceutical Co., Ltd.$7K
- Adaptive Biotechnologies Corporation$2K
- Daiichi Sankyo Inc.$920
- Jazz Pharmaceuticals Inc.$407
- Astellas Pharma US Inc$343
- plus $2K from 26 others
What the payments were for
- Consulting fees$65012%
- Travel & lodging$1,29624%
- Food & beverage$3,13158%
- Education$3366%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Syndax Pharmaceuticals, Inc. | 1 | $18,482 |
| Otsuka Pharmaceutical Co., Ltd. | 2 | $7,400 |
| Adaptive Biotechnologies Corporation | 11 | $1,531 |
| Daiichi Sankyo Inc. | 13 | $920 |
| Jazz Pharmaceuticals Inc. | 4 | $407 |
| Astellas Pharma US Inc | 6 | $343 |
| Takeda Pharmaceuticals U.S.A., Inc. | 8 | $273 |
| Blueprint Medicines Corporation | 4 | $190 |
| Bristol Myers Squibb | 8 | $189 |
| Incyte Corporation | 2 | $159 |
| E.r. Squibb & Sons, L.L.C. | 2 | $146 |
| Pfizer | 5 | $141 |
| AstraZeneca | 7 | $141 |
| Seagen Inc. | 1 | $125 |
| Sobi, Inc | 1 | $122 |
| Mallinckrodt Hospital Products Inc. | 1 | $118 |
| Novartis | 4 | $109 |
| AbbVie | 3 | $68 |
| Beone Medicines USA, Inc. | 3 | $66 |
| Sanofi | 2 | $53 |
| Johnson & Johnson | 2 | $51 |
| Servier Pharmaceuticals LLC | 2 | $47 |
| Alnylam Pharmaceuticals Inc. | 1 | $33 |
| Legend Biotech USA Inc. | 1 | $30 |
| Secura Bio, Inc. | 1 | $24 |
| GSK | 1 | $23 |
| EMD Serono, Inc. | 1 | $20 |
| ADC Therapeutics America, Inc. | 1 | $20 |
| Beigene USA, Inc. | 1 | $19 |
| Puma Biotechnology, Inc. | 1 | $18 |
| Taiho Oncology, Inc. | 1 | $17 |
| Kyowa Kirin, Inc. | 1 | $13 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$31,295 in reported general payments places this provider in the 65th percentile of 1,363 hematology & oncology providers in California.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| OnuregAzacitidine | 19 | $357,448 |
| BosulifBosutinib | 15 | $266,210 |
| IclusigPonatinib Hcl | 11 | $224,085 |
| CresembaIsavuconazonium Sulfate | 23 | $154,989 |
| PromactaEltrombopag Olamine | 12 | $148,280 |
| TasignaNilotinib Hcl | 11 | $132,935 |
| VenclextaVenetoclax | 34 | $111,823 |
| VemlidyTenofovir Alafenamide | 11 | $14,024 |
| Voriconazole | 19 | $9,402 |
| EliquisApixaban | 15 | $9,073 |
| Tacrolimus | 14 | $1,030 |
| Acyclovir | 49 | $643 |
| Ondansetron OdtOndansetron | 12 | $155 |
| Prednisone | 17 | $148 |
| Famotidine | 13 | $140 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| E.r. Squibb & Sons, L.L.C.Onureg | $146 | $357,44819 claims |
| NovartisPromacta, Tasigna | $109 | $281,21523 claims |
| PfizerBosulif, Eliquis | $141 | $275,28330 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Iclusig | $273 | $224,08511 claims |
| Astellas Pharma US IncCresemba | $343 | $154,98923 claims |
| AbbVieVenclexta | $68 | $111,82334 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 65th percentile of 1,363 hematology & oncology providers in California.
Other hematology & oncology in Los Angeles
- David BerzLos Angeles$43.3M
- Nicholas McAndrewLos Angeles$22.9M
- Antoni RibasLos Angeles$13M
- Gary SchillerLos Angeles$11.9M
- Matthew RettigLos Angeles$8.2M
- Lasika SeneviratneLos Angeles$8.1M
- Gary BuchschacherLos Angeles$7.9M
- Edward GaronLos Angeles$7.9M
- Gottfried KonecnyLos Angeles$7.6M
- Sven de VosLos Angeles$6.7M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.