RxDoctor Payments Data

Linh Thong, MD

Nephrology · Orange, CANPI 1154510386

Payments from drug & device makers

$257in general payments, 2019–2025

Across 14 payments — averaging $18.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AstraZeneca$62
  • Otsuka America Pharmaceutical, Inc.$50
  • Akebia Therapeutics Inc$29
  • OPKO Pharmaceuticals, LLC$29
  • Daiichi Sankyo Inc.$29
  • Amgen$26
  • plus $33 from 2 others

What the payments were for

  • Food & beverage$24395%
  • Education$145%

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
22
23

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

$257 in reported general payments places this provider in the 25th percentile of 1,341 nephrology providers in California.

See all nephrology providers in California

Medicare billing

Part B allowed, 2024
$168,060
Medicare patients
364
Services billed
1,245

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
Sevelamer Carbonate43$16,087
FarxigaDapagliflozin Propanediol12$10,144
Cyclosporine ModifiedCyclosporine, Modified17$3,050
Potassium Citrate ErPotassium Citrate32$3,044
Calcium Acetate11$1,431
Hydralazine Hcl53$989
Calcitriol46$922
Metoprolol Succinate56$749
Losartan Potassium74$733
Mycophenolate Mofetil19$703
Amlodipine Besylate92$622
Nifedipine ErNifedipine20$584
Prednisone89$548
Carvedilol49$482
Midodrine Hcl14$459

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$62$10,14412 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 25th percentile of 1,341 nephrology providers in California.

Other nephrology in Orange

See the full list for California

Where these figures come from

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