Susan Guo, MD
Radiation Oncology · Tacoma, WANPI 1932375805
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $11,454 of the $17,810 with a category attached, or 64.3%. Sanofi accounts for 85.5% of it on its own, with 26 other manufacturers making up the rest. Reporting peaked in 2021 at $12,207 and has fallen 98.8% since, to $148 in 2025. Among radiation oncology clinicians in WA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 55 payments — averaging $323.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi$15K
- Regeneron Healthcare Solutions, Inc.$957
- Regeneron$526
- Nxstage Medical, Inc.$222
- Tempus AI, Inc$134
- Merit Medical Systems Inc$83
- plus $665 from 21 others
What the payments were for
- Consulting fees$2,67315%
- Speaking & faculty fees$11,45464%
- Travel & lodging$1,4998%
- Food & beverage$2,01811%
- Education$1661%
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 |
|---|---|---|
| Sanofi | 15 | $15,223 |
| Regeneron Healthcare Solutions, Inc. | 4 | $957 |
| Regeneron | 2 | $526 |
| Nxstage Medical, Inc. | 2 | $222 |
| Tempus AI, Inc | 2 | $134 |
| Merit Medical Systems Inc | 1 | $83 |
| Elekta, Inc. | 1 | $70 |
| Travere Therapeutics, Inc. | 3 | $68 |
| Johnson & Johnson | 1 | $65 |
| Novocure Inc. | 3 | $65 |
| Veloxis Pharmaceuticals, Inc. | 3 | $61 |
| Sanofi-aventis U.S. LLC | 2 | $44 |
| Sensus Healthcare, Inc. | 2 | $38 |
| Q Biomed Inc. | 1 | $29 |
| Seagen Inc. | 1 | $26 |
| Intuitive Surgical | 1 | $22 |
| Puma Biotechnology, Inc. | 1 | $20 |
| Palette Life Sciences, Inc. | 1 | $19 |
| Novartis | 1 | $19 |
| Bayer | 1 | $19 |
| La Jolla Pharmaceutical Company | 1 | $17 |
| Myriad Genetic Laboratories, Inc. | 1 | $17 |
| Gilead | 1 | $15 |
| Chiesi USA, Inc. | 1 | $14 |
| AstraZeneca | 1 | $13 |
| Boston Scientific | 1 | $13 |
| Karyopharm Therapeutics Inc. | 1 | $12 |
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.
- LIBTAYO$14,985
- Concentrates$148
- LIBERTY SELECT CYCLER$148
How this compares
$17,810 in reported general payments places this provider in the 95th percentile of 168 radiation oncology providers in Washington.
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 |
|---|---|---|
| Triamcinolone Acetonide | 12 | $48 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Tacoma
- Herbert WangTacoma$5K
- Wendy GaoTacoma$857
- Ann PittierTacoma$672
- Christopher LeeSpokane Valley$138K
- Vivek MehtaSeattle$120K
- Christopher LoiselleSeattle$63K
- Ramesh RenganSeattle$57K
- Jing ZengSeattle$37K
- Omar MianSeattle$22K
- Richard HsiSeattle$18K
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.