RxDoctor Payments Data

Thuan Nguyen, MD

Internal Medicine · Houston, TXNPI 1659421535

Payments from drug & device makers

$78,010in general payments, 2019–2025

Across 319 payments — averaging $244.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Gilead$74K
  • Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$531
  • Mentor Worldwide LLC$442
  • AbbVie$440
  • Redhill Biopharma Inc.$400
  • Ironwood Pharmaceuticals, Inc$371
  • plus $1K from 19 others

What the payments were for

  • Speaking & faculty fees$65,21384%
  • Travel & lodging$5,7737%
  • Food & beverage$7,0239%

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

$78,010 in reported general payments places this provider in the 95th percentile of 7,675 internal medicine providers in Texas.

See all internal medicine providers in Texas

Medicare billing

Part B allowed, 2024
$66,228
Medicare patients
92
Services billed
525

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
VemlidyTenofovir Alafenamide96$144,604
LinzessLinaclotide69$83,119
Dexlansoprazole DrDexlansoprazole28$8,383
Lubiprostone21$3,909
Famotidine100$2,071
Esomeprazole Magnesium24$776
Dicyclomine Hcl19$656
Omeprazole31$544
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl16$272
Pantoprazole Sodium40$259
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl12$202
Metoclopramide Hcl29$155

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
GileadVemlidy$74,389$144,60496 claims
AbbVieLinzess$440$83,11969 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 95th percentile of 7,675 internal medicine providers in Texas.

Other internal medicine in Houston

See the full list for Texas

Where these figures come from

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