RxDoctor Payments Data

Christopher Farmakis, MD

Nephrology · Fredericksburg, VANPI 1619405552

Payments from drug & device makers

$2,044in general payments, 2019–2025

Across 115 payments — averaging $17.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AstraZeneca$2K
  • Novartis$65
  • E.r. Squibb & Sons, L.L.C.$61
  • Nxstage Medical, Inc.$43
  • Vifor Pharma, Inc.$42
  • Travere Therapeutics, Inc.$32
  • plus $167 from 9 others

What the payments were for

  • Food & beverage$1,99498%
  • Education$502%

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
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.

How this compares

$2,044 in reported general payments places this provider in the 60th percentile of 298 nephrology providers in Virginia.

See all nephrology providers in Virginia

Medicare billing

Part B allowed, 2024
$236,166
Medicare patients
618
Services billed
1,907

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 Oxyhydroxide18$48,126
FarxigaDapagliflozin Propanediol26$24,213
Sevelamer Carbonate54$10,046
Calcitriol130$1,545
Potassium Citrate ErPotassium Citrate19$1,009
Lisinopril32$501
Losartan Potassium37$319
Amlodipine Besylate43$249
Torsemide14$205
Carvedilol16$163
Spironolactone24$150
Furosemide12$56

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
AstraZenecaFarxiga$1,635$24,21326 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 298 nephrology providers in Virginia.

Other nephrology in Fredericksburg

See the full list for Virginia

Where these figures come from

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