RxDoctor Payments Data

Stuart Friedman, MD

Nephrology · Los Angeles, CANPI 1679585715

Payments from drug & device makers

$1,888in general payments, 2019–2025

Across 67 payments — averaging $28.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Vifor Pharma, Inc.$345
  • Otsuka America Pharmaceutical, Inc.$342
  • AstraZeneca$230
  • Travere Therapeutics, Inc.$151
  • Amgen$139
  • GSK$130
  • plus $551 from 11 others

What the payments were for

  • Consulting fees$1508%
  • Speaking & faculty fees$20011%
  • Food & beverage$1,53781%
  • Education$10%

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

$1,888 in reported general payments places this provider in the 55th percentile of 1,341 nephrology providers in California.

See all nephrology providers in California

Medicare billing

Part B allowed, 2024
$526,841
Medicare patients
573
Services billed
8,933

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
FarxigaDapagliflozin Propanediol138$138,764
JardianceEmpagliflozin56$63,534
LokelmaSodium Zirconium Cyclosilicate62$53,609
EliquisApixaban43$47,673
VeltassaPatiromer Calcium Sorbitex35$36,590
TrulicityDulaglutide31$33,453
TradjentaLinagliptin20$27,678
JanuviaSitagliptin Phosphate23$23,630
Sevelamer Carbonate86$18,803
RetacritEpoetin Alfa-Epbx11$12,219
Cinacalcet Hcl33$9,047
Mycophenolic AcidMycophenolate Sodium15$6,560
RenvelaSevelamer Carbonate12$6,319
TrintellixVortioxetine Hydrobromide12$6,128
Calcitriol290$5,145

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, Lokelma$230$192,373200 claims
Boehringer IngelheimJardiance, Tradjenta$115$91,21276 claims
AmgenEpogen$139$2,84511 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 55th percentile of 1,341 nephrology providers in California.

Other nephrology in Los Angeles

See the full list for California

Where these figures come from

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