Thomas Dunn, DO
Nephrology · Columbus, MSNPI 1376584912
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $1,911 of the $2,352 with a category attached, or 81.2%. CSL Behring accounts for 87.4% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2024 at $2,100 and has fallen 98.9% since, to $24 in 2025.
Across 23 payments — averaging $102.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- CSL Behring$2K
- Fresenius USA Marketing, Inc.$220
- Nxstage Medical, Inc.$32
- Akebia Therapeutics Inc$25
- AstraZeneca$18
- Travere Therapeutics, Inc.$2
Across 50 payments — averaging $5852.34 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- CSL Behring$293K
What the payments were for
- Travel & lodging$1,91181%
- Food & beverage$41518%
- Education$261%
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 |
|---|---|---|
| CSL Behring | 6 | $2,056 |
| Fresenius USA Marketing, Inc. | 13 | $220 |
| Nxstage Medical, Inc. | 1 | $32 |
| Akebia Therapeutics Inc | 1 | $25 |
| AstraZeneca | 1 | $18 |
| Travere Therapeutics, Inc. | 1 | $2 |
How this compares
$2,352 in reported general payments places this provider in the 60th percentile of 105 nephrology providers in Mississippi.
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 |
|---|---|---|
| VelphoroSucroferric Oxyhydroxide | 106 | $331,590 |
| AuryxiaFerric Citrate | 103 | $202,114 |
| Sevelamer Carbonate | 356 | $39,413 |
| Lanthanum Carbonate | 25 | $17,785 |
| Tacrolimus | 11 | $3,241 |
| Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp | 13 | $1,783 |
| Midodrine Hcl | 35 | $1,522 |
| Clonidine | 12 | $1,342 |
| Nifedipine ErNifedipine | 28 | $536 |
| Mycophenolate Mofetil | 20 | $490 |
| Hydralazine Hcl | 56 | $435 |
| Labetalol Hcl | 13 | $316 |
| Amlodipine Besylate | 77 | $265 |
| Ondansetron OdtOndansetron | 11 | $251 |
| Losartan Potassium | 22 | $247 |
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 |
|---|---|---|
| Fresenius USA Marketing, Inc.Velphoro | $220 | $331,590106 claims |
| Akebia Therapeutics IncAuryxia | $25 | $202,114103 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 60th percentile of 105 nephrology providers in Mississippi.
Other nephrology in Columbus
- Mohit AhujaFlowood$427K
- Padam HirachanNatchez$29K
- Brian RifkinHattiesburg$23K
- Otis GowdyMeridian$12K
- Richard MillerBrookhaven$10K
- Thomas WooldridgeTupelo$8K
- Steven WagnerFlowood$6K
- John Martin LeeTupelo$6K
- Francis PhillippiFlowood$6K
- Son LamOxford$6K
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.