Dumitru Rotaru, MD
Nephrology · Fort Smith, ARNPI 1407042252
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 96.1% of the total across 16 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 10 manufacturers reported payments, led by Baxter Healthcare at 39.2% of the total. Reporting peaked in 2021 at $232 and has fallen 57.8% since, to $98 in 2025. That places this record below the midpoint for nephrology clinicians in AR, where the typical reported total is $925.
Across 16 payments — averaging $34.54 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Baxter Healthcare$216
- AstraZeneca$148
- Fresenius USA Marketing, Inc.$67
- Novartis$27
- Vantive US Healthcare LLC$24
- Aurinia Pharma U.S., Inc.$20
- plus $50 from 4 others
Across 1 payment — averaging $98,695 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.
- Baxter Healthcare$99K
What the payments were for
- Food & beverage$53196%
- Education$214%
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 |
|---|---|---|
| Baxter Healthcare | 5 | $216 |
| AstraZeneca | 3 | $148 |
| Fresenius USA Marketing, Inc. | 1 | $67 |
| Novartis | 1 | $27 |
| Vantive US Healthcare LLC | 1 | $24 |
| Aurinia Pharma U.S., Inc. | 1 | $20 |
| Bayer | 1 | $18 |
| Nxstage Medical, Inc. | 1 | $16 |
| Amgen | 1 | $14 |
| Travere Therapeutics, Inc. | 1 | $2 |
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.
- LOKELMA$114
How this compares
$553 in reported general payments places this provider in the 40th percentile of 85 nephrology providers in Arkansas.
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 |
|---|---|---|
| LokelmaSodium Zirconium Cyclosilicate | 29 | $34,020 |
| KerendiaFinerenone | 27 | $32,176 |
| Sevelamer Carbonate | 102 | $18,096 |
| Calcium Acetate | 239 | $14,901 |
| FarxigaDapagliflozin Propanediol | 15 | $13,327 |
| Midodrine Hcl | 84 | $1,942 |
| Furosemide | 190 | $1,014 |
| Potassium Chloride | 89 | $1,010 |
| Losartan Potassium | 147 | $947 |
| Doxazosin Mesylate | 79 | $889 |
| Nifedipine ErNifedipine | 87 | $778 |
| Metoprolol Succinate | 83 | $697 |
| Carvedilol | 139 | $659 |
| Amlodipine Besylate | 136 | $658 |
| Calcitriol | 60 | $655 |
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 |
|---|---|---|
| AstraZenecaLokelma, Farxiga | $148 | $47,34744 claims |
| BayerKerendia | $18 | $32,17627 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 40th percentile of 85 nephrology providers in Arkansas.
Other nephrology in Fort Smith
- Hania Al-ShahrouriFort Smith$8K
- Charles MoussallemFort Smith$5K
- James HenryFort Smith$5K
- James BrutonFort Smith$5K
- Muhammad Zatmar KhanFort Smith$2K
- Divine RibakareFort Smith$2K
- Alex Eduardo Calderon RodriguezFort Smith$1K
- Andres Pirela AraqueFort Smith$558
- Drew HeipleRussellville$236K
- Luis JuncosLittle Rock$66K
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.