Robert Clark, MD
Nephrology · Meridian, MSNPI 1518944198
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.6% of the total across 85 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 18 manufacturers, the largest accounting for just 19.4% — the pattern of someone who eats at a lot of different presentations. That places this record below the midpoint for nephrology clinicians in MS, where the typical reported total is $1,460.
Across 85 payments — averaging $18.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$305
- Aurinia Pharma U.S., Inc.$207
- Bayer$192
- Akebia Therapeutics Inc$187
- Vifor Pharma, Inc.$161
- Novartis$158
- plus $364 from 12 others
What the payments were for
- Food & beverage$1,50596%
- Education$694%
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 |
|---|---|---|
| AstraZeneca | 20 | $305 |
| Aurinia Pharma U.S., Inc. | 12 | $207 |
| Bayer | 9 | $192 |
| Akebia Therapeutics Inc | 9 | $187 |
| Vifor Pharma, Inc. | 10 | $161 |
| Novartis | 5 | $158 |
| Lilly USA, LLC | 6 | $111 |
| Otsuka America Pharmaceutical, Inc. | 2 | $42 |
| GSK | 2 | $36 |
| Travere Therapeutics, Inc. | 2 | $26 |
| Ardelyx, Inc. | 1 | $26 |
| Calliditas Therapeutics US Inc. | 1 | $23 |
| Novo Nordisk | 1 | $20 |
| Daiichi Sankyo Inc. | 1 | $19 |
| Bard Peripheral Vascular, Inc. | 1 | $17 |
| Mallinckrodt Hospital Products Inc. | 1 | $15 |
| Siemens Medical Solutions USA, Inc. | 1 | $15 |
| Boehringer Ingelheim | 1 | $14 |
How this compares
$1,574 in reported general payments places this provider in the 50th 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 | 67 | $179,169 |
| AuryxiaFerric Citrate | 41 | $86,715 |
| Lanthanum Carbonate | 53 | $46,058 |
| RenvelaSevelamer Carbonate | 16 | $33,226 |
| Sevelamer Carbonate | 157 | $27,882 |
| JardianceEmpagliflozin | 36 | $25,082 |
| OzempicSemaglutide | 18 | $17,561 |
| FarxigaDapagliflozin Propanediol | 20 | $10,898 |
| EliquisApixaban | 12 | $6,708 |
| Calcium Acetate | 26 | $2,350 |
| Potassium Citrate ErPotassium Citrate | 11 | $788 |
| Potassium Chloride | 29 | $642 |
| Midodrine Hcl | 18 | $588 |
| Metolazone | 20 | $544 |
| Allopurinol | 50 | $471 |
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 |
|---|---|---|
| Akebia Therapeutics IncAuryxia | $187 | $86,71541 claims |
| Boehringer IngelheimJardiance | $14 | $25,08236 claims |
| Novo NordiskOzempic | $20 | $17,56118 claims |
| AstraZenecaFarxiga | $305 | $10,89820 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 50th percentile of 105 nephrology providers in Mississippi.
Other nephrology in Meridian
- Otis GowdyMeridian$12K
- John AndyMeridian$2K
- Alisha ParkerMeridian$2K
- Mohit AhujaFlowood$427K
- Padam HirachanNatchez$29K
- Brian RifkinHattiesburg$23K
- Richard MillerBrookhaven$10K
- Thomas WooldridgeTupelo$8K
- Steven WagnerFlowood$6K
- John Martin LeeTupelo$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.