Thomas Chambliss, MD
Internal Medicine · Greenville, SCNPI 1578586202
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 9 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Sunovion Pharmaceuticals Inc. accounts for 73.1% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2019 at $88 and has fallen 76.4% since, to $21 in 2021. That places this record below the midpoint for internal medicine clinicians in SC, where the typical reported total is $298.
Across 9 payments — averaging $13.34 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sunovion Pharmaceuticals Inc.$88
- Novartis$21
- Esperion Therapeutics, Inc.$12
What the payments were for
- Food & beverage$120100%
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 |
|---|---|---|
| Sunovion Pharmaceuticals Inc. | 7 | $88 |
| Novartis | 1 | $21 |
| Esperion Therapeutics, Inc. | 1 | $12 |
How this compares
$120 in reported general payments places this provider in the 30th percentile of 1,498 internal medicine providers in South Carolina.
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 |
|---|---|---|
| EliquisApixaban | 131 | $109,169 |
| OzempicSemaglutide | 68 | $65,287 |
| JardianceEmpagliflozin | 56 | $60,633 |
| XareltoRivaroxaban | 43 | $35,782 |
| Advair HfaFluticasone Propion/Salmeterol | 21 | $8,299 |
| Atorvastatin Calcium | 715 | $6,928 |
| SynthroidLevothyroxine Sodium | 78 | $4,423 |
| Losartan Potassium | 308 | $3,457 |
| Levothyroxine Sodium | 346 | $3,437 |
| Pantoprazole Sodium | 275 | $3,432 |
| Fentanyl | 20 | $3,395 |
| Metoprolol Succinate | 182 | $2,879 |
| Ezetimibe | 102 | $2,718 |
| Omeprazole | 196 | $2,527 |
| Tamsulosin Hcl | 119 | $2,391 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Greenville
- Mark PurcellGreenville$165K
- Zion LammGreenville$118K
- Bruce GrayGreenville$111K
- Lisa DarbyGreenville$43K
- Siddesha ArashinagundiGreenville$13K
- Jill SullivanGreenville$12K
- Sudhhirkumar PatelGreenville$12K
- Brent EganGreenville$11K
- Walter PughGreenville$10K
- Jerry BackNorth Charleston$322K
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.