RxDoctor Payments Data

David Rosnack, MD

Nephrology · Georgetown, SCNPI 1215906771

Payments from drug & device makers

$1,533in general payments, 2019–2025

Across 65 payments — averaging $23.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Otsuka America Pharmaceutical, Inc.$335
  • AstraZeneca$274
  • Travere Therapeutics, Inc.$268
  • Calliditas Therapeutics US Inc.$162
  • Mallinckrodt Hospital Products Inc.$131
  • Vifor Pharma, Inc.$74
  • plus $290 from 12 others

What the payments were for

  • Food & beverage$1,48997%
  • Education$443%

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

19
20
21
22
23
24
25

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.

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.

How this compares

$1,533 in reported general payments places this provider in the 40th percentile of 180 nephrology providers in South Carolina.

See all nephrology providers in South Carolina

Medicare billing

Part B allowed, 2024
$162,153
Medicare patients
371
Services billed
1,066

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

DrugClaimsCost to plans & patients
VelphoroSucroferric Oxyhydroxide68$100,703
AuryxiaFerric Citrate38$62,988
Sevelamer Carbonate242$38,909
FarxigaDapagliflozin Propanediol50$36,164
EliquisApixaban15$15,353
VeltassaPatiromer Calcium Sorbitex17$11,620
Lanthanum Carbonate19$9,911
Calcitriol95$2,104
Cyclosporine ModifiedCyclosporine, Modified13$1,168
Midodrine Hcl17$951
Nifedipine ErNifedipine38$731
Hydralazine Hcl54$524
Amlodipine Besylate91$508
Furosemide111$469
Pantoprazole Sodium34$460

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.

CompanyPaid to this providerPart D cost of their drugs
Fresenius USA Marketing, Inc.Velphoro$18$100,70368 claims
Akebia Therapeutics IncAuryxia$47$62,98838 claims
AstraZenecaFarxiga$274$36,16450 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 180 nephrology providers in South Carolina.

Other nephrology in Georgetown

See the full list for South Carolina

Where these figures come from

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