RxDoctor Payments Data

Jeffrey Kahn, MD

Transplant Hepatology · Los Angeles, CANPI 1639194822

Payments from drug & device makers

What this record shows

The money is spread across several categories — speaking fees (58.0%), food and beverage and consulting fees — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Orphalan Inc at 33.3% of the total. Reporting peaked in 2023 at $3,234 and has fallen 63.4% since, to $1,184 in 2025.

$8,756in general payments, 2019–2025

Across 45 payments — averaging $194.57 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Orphalan Inc$3K
  • Mallinckrodt Hospital Products Inc.$2K
  • AbbVie$1K
  • Gilead$781
  • Intercept Pharmaceuticals, Inc.$741
  • Madrigal Pharmaceuticals$433
  • plus $873 from 7 others
$116,801in research payments, 2019–2025

Across 6 payments — averaging $19,467 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

  • Intercept Pharmaceuticals, Inc.$117K

What the payments were for

  • Consulting fees$4005%
  • Speaking & faculty fees$5,08058%
  • Food & beverage$3,27637%

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

$8,756 in reported general payments places this provider in the 65th percentile of 39 transplant hepatology providers in California.

See all transplant hepatology providers in California

Medicare billing

Part B allowed, 2024
$64,967
Medicare patients
257
Services billed
577

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
XifaxanRifaximin103$335,246
VemlidyTenofovir Alafenamide77$105,839
Tacrolimus339$26,854
Ursodiol77$16,540
Entecavir33$10,830
Mycophenolate Mofetil126$9,552
Sirolimus35$6,260
Cyclosporine ModifiedCyclosporine, Modified17$2,200
GengrafCyclosporine, Modified12$1,362
Lactulose14$971
Prednisone120$793
Pantoprazole Sodium84$728
Tenofovir Disoproxil Fumarate14$430
Naltrexone Hcl11$356
Spironolactone25$356

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
Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan$13$335,246103 claims
GileadVemlidy$781$105,83977 claims
AbbVieGengraf$1,151$1,36212 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 65th percentile of 39 transplant hepatology providers in California.

Other transplant hepatology in Los Angeles

See the full list for California

Where these figures come from

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