RxDoctor Payments Data

Kamyar Kamjoo, MD

Nephrology · Tarzana, CANPI 1558465708

Payments from drug & device makers

$79,039in general payments, 2019–2025

Across 505 payments — averaging $156.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • CSL Behring$69K
  • Amgen$2K
  • AstraZeneca$1K
  • Johnson & Johnson$667
  • Pfizer$499
  • Novo Nordisk$489
  • plus $5K from 40 others

What the payments were for

  • Food & beverage$9,48999%
  • Education$1361%

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

$79,039 in reported general payments places this provider in the 85th percentile of 1,341 nephrology providers in California.

See all nephrology providers in California

Medicare billing

Part B allowed, 2024
$517,825
Medicare patients
439
Services billed
12,386

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
Repatha SureclickEvolocumab205$157,277
JardianceEmpagliflozin154$125,220
MounjaroTirzepatide99$121,248
EliquisApixaban117$110,150
FarxigaDapagliflozin Propanediol61$67,678
OzempicSemaglutide40$58,470
TrulicityDulaglutide36$51,748
XareltoRivaroxaban41$39,349
LinzessLinaclotide43$33,747
Praluent PenAlirocumab38$24,636
CreonLipase/Protease/Amylase28$24,393
MyrbetriqMirabegron29$23,888
ProliaDenosumab13$22,179
ProcritEpoetin Alfa16$15,428
MultaqDronedarone Hcl19$13,633

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
Lilly USA, LLCMounjaro, Trulicity$470$172,996135 claims
Boehringer IngelheimJardiance, Tradjenta$354$131,033165 claims
PfizerEliquis, Premarin, Paxlovid$499$121,271165 claims
AstraZenecaFarxiga$1,036$67,67861 claims
AbbVieLinzess, Creon, Synthroid$340$62,552121 claims
Novo NordiskOzempic$489$58,47040 claims
Johnson & JohnsonXarelto, Procrit$667$54,77657 claims
Astellas Pharma US IncMyrbetriq$129$23,88829 claims
AmgenProlia$2,210$22,17913 claims
Sanofi-aventis U.S. LLCMultaq$47$13,63319 claims
GSKTrelegy Ellipta, Breo Ellipta$253$12,48523 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 85th percentile of 1,341 nephrology providers in California.

Other nephrology in Tarzana

See the full list for California

Where these figures come from

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