Chad Tang, MD
Radiation Oncology · Houston, TXNPI 1376899419
Payments from drug & device makers
Across 118 payments — averaging $65,528 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$7.1M
- Varian Medical Systems, Inc.$356K
- E.r. Squibb & Sons, L.L.C.$150K
- Myriad Genetic Laboratories, Inc.$71K
- Boston Scientific$9K
- Siemens Medical Solutions USA, Inc.$9K
- plus $15K from 18 others
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 |
|---|---|---|
| Merck | 3 | $7,121,579 |
| Varian Medical Systems, Inc. | 4 | $356,400 |
| E.r. Squibb & Sons, L.L.C. | 3 | $150,000 |
| Myriad Genetic Laboratories, Inc. | 1 | $71,328 |
| Boston Scientific | 34 | $9,108 |
| Siemens Medical Solutions USA, Inc. | 11 | $8,524 |
| Bayer | 8 | $4,055 |
| Elekta, Inc. | 7 | $3,602 |
| Telix Pharmaceuticals | 11 | $2,664 |
| Molli Surgical (US) Inc | 3 | $1,888 |
| AstraZeneca | 10 | $781 |
| Raysearch Laboratories AB (publ) | 1 | $485 |
| Pfizer | 5 | $392 |
| Reflexion Medical, Inc. | 2 | $238 |
| Exelixis Inc. | 2 | $232 |
| Visionrt, Inc. | 1 | $221 |
| Bioprotect Medical, Inc. | 2 | $172 |
| Johnson & Johnson | 1 | $150 |
| AVEO Pharmaceuticals, Inc. | 1 | $144 |
| Novartis | 2 | $131 |
| Sumitomo Pharma America, Inc. | 1 | $116 |
| Blue Earth Diagnostics | 2 | $55 |
| Ion Beam Applications S.A. | 1 | $51 |
| Shockwave Medical, Inc | 2 | $43 |
How this compares
$7,732,360 in reported general payments places this provider in the 95th percentile of 418 radiation oncology providers in Texas.
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.
Other radiation oncology in Houston
- Daniel GomezHouston$8.7M
- James WelshHouston$5.1M
- Caroline ChungHouston$3.7M
- Karen HoffmanHouston$2.6M
- Clifton FullerHouston$1.6M
- Steven LinHouston$1.5M
- Chenyang WangHouston$1.4M
- Joe ChangHouston$1.2M
- Lilie LinHouston$1.2M
- Phuoc TranHouston$966K
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.