RxDoctor Payments Data

Danny Issa, MD

Gastroenterology · West Hills, CANPI 1750631396

Payments from drug & device makers

$187,845in general payments, 2019–2025

Across 219 payments — averaging $857.74 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Lilly USA, LLC$140K
  • Boston Scientific$43K
  • Cook Incorporated$3K
  • Cook Medical LLC$783
  • Olympus America Inc.$323
  • Apollo Endosurgery US Inc$240
  • plus $591 from 7 others

What the payments were for

  • Consulting fees$9,3655%
  • Speaking & faculty fees$128,00068%
  • Grants$25,00013%
  • Travel & lodging$18,05410%
  • Food & beverage$7,3374%
  • Education$890%

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

$187,845 in reported general payments places this provider in the 90th percentile of 1,885 gastroenterology providers in California.

See all gastroenterology providers in California

Medicare billing

Part B allowed, 2024
$165,488
Medicare patients
423
Services billed
1,005

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
CreonLipase/Protease/Amylase18$38,469
LinzessLinaclotide11$9,728
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates87$5,528
Esomeprazole Magnesium13$3,589
Sucralfate11$1,895
Pantoprazole Sodium96$1,232
Omeprazole96$1,209
Ursodiol14$689
Ondansetron OdtOndansetron16$301
Dicyclomine Hcl22$249
Famotidine17$184

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
AbbVieCreon, Linzess$16$48,19729 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 90th percentile of 1,885 gastroenterology providers in California.

Other gastroenterology in West Hills

See the full list for California

Where these figures come from

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