Healthcare provider profile · identity verified

Thai Nguyen, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · GARLAND, TX · NPI 1669555140

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Thai Nguyen, MD received $244.77 in general payments during 2025 across 12 reported records.

Fresenius USA Marketing, Inc. accounted for 35.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Velphoro.

AKEBIA THERAPEUTICS INC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Auryxia as an associated drug or biological on 494 records involving 327 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Auryxia by this doctor in 2024.

Fresenius USA Marketing, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported VELPHORO as an associated drug or biological on 8763 records involving 2642 distinct recipient NPIs. Public Medicare Part D data also shows 45 claims for Velphoro by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$244.77

12 reported records · 6 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $85.9635.1%42025
AKEBIA THERAPEUTICS INC Unresolved — no canonical attribution shown $43.2117.6%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $33.7313.8%22025
Amgen Inc. Unresolved — no canonical attribution shown $31.3412.8%22025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $28.2711.6%12025
Ardelyx, Inc. Unresolved — no canonical attribution shown $22.269.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$244.7712

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
VELPHORO
Normalized: velphoro
Drug Fresenius USA Marketing, Inc. $85.96 4 2025
Source payment records
Vafseo
Normalized: vafseo
Drug AKEBIA THERAPEUTICS INC $43.21 2 2025
Source payment records
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $33.73 2 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $28.27 1 2025
Source payment records
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $22.26 1 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $17.11 1 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $14.23 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
VELPHORO
velphoro
2025 Velphoro 2024 45 exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
AKEBIA THERAPEUTICS INC
Exact reporting entity; no affiliate inference
2025 Auryxia
open payments reported associated product
CMS Open Payments — General Payments
494 supporting records · 327 recipient NPIs · example record 1241812131
Auryxia · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Fresenius USA Marketing, Inc.
Exact reporting entity; no affiliate inference
2025 VELPHORO
open payments reported associated product
CMS Open Payments — General Payments
8763 supporting records · 2642 recipient NPIs · example record 1244803773
Velphoro · 2024
Exact normalized brand match · 1 Part D row
45 12

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
CalcitriolCalcitriol13040
FurosemideFurosemide8832
Amlodipine BesylateAmlodipine Besylate7527
Sevelamer CarbonateSevelamer Carbonate5318
TorsemideTorsemide4911
BumetanideBumetanide4815
Losartan PotassiumLosartan Potassium4516
VelphoroSucroferric Oxyhydroxide4512
Doxazosin MesylateDoxazosin Mesylate4211
Atorvastatin CalciumAtorvastatin Calcium3916
CarvedilolCarvedilol3714
Hydralazine HclHydralazine Hcl3315
GabapentinGabapentin32suppressed
Calcium AcetateCalcium Acetate3013
FarxigaDapagliflozin Propanediol29suppressed
Metoprolol SuccinateMetoprolol Succinate27suppressed
Olmesartan MedoxomilOlmesartan Medoxomil2411
SpironolactoneSpironolactone23suppressed
Lanthanum CarbonateLanthanum Carbonate22suppressed
Potassium Citrate ErPotassium Citrate22suppressed
AllopurinolAllopurinol19suppressed
Tamsulosin HclTamsulosin Hcl19suppressed
Trazodone HclTrazodone Hcl19suppressed
Vitamin D2Ergocalciferol (Vitamin D2)18suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan17suppressed
Nifedipine ErNifedipine17suppressed
Midodrine HclMidodrine Hcl16suppressed
Tramadol HclTramadol Hcl15suppressed
AuryxiaFerric Citrate13suppressed
Cinacalcet HclCinacalcet Hcl13suppressed
LevofloxacinLevofloxacin1313
Metoprolol TartrateMetoprolol Tartrate13suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip12suppressed
EliquisApixaban12suppressed
Tolterodine TartrateTolterodine Tartrate12suppressed
FinasterideFinasteride11suppressed
MethylprednisoloneMethylprednisolone11suppressed
Pantoprazole SodiumPantoprazole Sodium11suppressed
Rosuvastatin CalciumRosuvastatin Calcium11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $244.77 · 12 records Fresenius USA Marketing, Inc. BENLYSTA, IBSRELA, KRYSTEXXA, TAVNEOS, ULTOMIRIS, VELPHORO, Vafseo 2
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error