Patrick Williams, MD
Radiation Oncology · Chattanooga, TNNPI 1164828869
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $505 of the $605 with a category attached, or 83.5%. It is spread thinly across 14 manufacturers, the largest accounting for just 16.5% — the pattern of someone who eats at a lot of different presentations. That places this record below the midpoint for radiation oncology clinicians in TN, where the typical reported total is $542.
Across 17 payments — averaging $35.58 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$100
- Sanofi$83
- Regeneron Healthcare Solutions, Inc.$75
- GT Medical Technologies, Inc$62
- Tactile Systems Technology Inc$49
- Novocure Inc.$41
- plus $195 from 8 others
What the payments were for
- Food & beverage$50583%
- Education$10017%
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 |
|---|---|---|
| Johnson & Johnson | 1 | $100 |
| Sanofi | 1 | $83 |
| Regeneron Healthcare Solutions, Inc. | 2 | $75 |
| GT Medical Technologies, Inc | 1 | $62 |
| Tactile Systems Technology Inc | 1 | $49 |
| Novocure Inc. | 2 | $41 |
| Bayer | 2 | $40 |
| Eisai Inc. | 1 | $35 |
| Boston Scientific | 1 | $31 |
| Pfizer | 1 | $26 |
| Novartis | 1 | $18 |
| E.r. Squibb & Sons, L.L.C. | 1 | $15 |
| Adaptive Biotechnologies Corporation | 1 | $15 |
| Merck | 1 | $15 |
How this compares
$605 in reported general payments places this provider in the 50th percentile of 115 radiation oncology providers in Tennessee.
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 |
|---|---|---|
| Betamethasone Dipropionate | 32 | $1,088 |
| Pentoxifylline | 32 | $762 |
| Tamsulosin Hcl | 11 | $137 |
| Gabapentin | 13 | $114 |
| Memantine Hcl | 11 | $104 |
| Alprazolam | 13 | $13 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Chattanooga
- Frank KimseyChattanooga$5K
- Austin DoveChattanooga$5K
- Ryan ClearyChattanooga$4K
- Jonathan WhaleyChattanooga$2K
- Nitesh RanaChattanooga$940
- John FortneyChattanooga$645
- Marcus WagnerChattanooga$626
- Han-Chih ChangNashville$66K
- Karen WinkfieldNashville$53K
- James GrayNashville$46K
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.