RxDoctor Payments Data

Farid Osman, MD

Nephrology · Petaluma, CANPI 1962423103

Payments from drug & device makers

$751in general payments, 2019–2025

Across 34 payments — averaging $22.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Vifor Pharma, Inc.$333
  • AstraZeneca$284
  • Fresenius USA Marketing, Inc.$32
  • Amgen$30
  • Travere Therapeutics, Inc.$21
  • Bayer$20
  • plus $31 from 2 others

What the payments were for

  • Food & beverage$61682%
  • Education$13518%

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

$751 in reported general payments places this provider in the 40th percentile of 1,341 nephrology providers in California.

See all nephrology providers in California

Medicare billing

Part B allowed, 2024
$357,406
Medicare patients
458
Services billed
4,914

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 Oxyhydroxide45$179,663
FilspariSparsentan12$138,337
FarxigaDapagliflozin Propanediol98$73,750
AuryxiaFerric Citrate14$34,234
JardianceEmpagliflozin36$25,910
LokelmaSodium Zirconium Cyclosilicate17$24,805
Sevelamer Carbonate85$23,144
VeltassaPatiromer Calcium Sorbitex11$22,147
OzempicSemaglutide15$14,444
Bumetanide63$5,886
Potassium Citrate ErPotassium Citrate19$2,699
Hydralazine Hcl49$1,754
Tamsulosin Hcl111$1,675
Calcitriol73$1,653
Labetalol Hcl27$1,485

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$32$179,66345 claims
Travere Therapeutics, Inc.Filspari$21$138,33712 claims
AstraZenecaFarxiga, Lokelma$284$98,554115 claims
Akebia Therapeutics IncAuryxia$16$34,23414 claims
Boehringer IngelheimJardiance$15$25,91036 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 1,341 nephrology providers in California.

Other nephrology in Petaluma

See the full list for California

Where these figures come from

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