Healthcare provider profile · identity verified

Thang Duc Tran, MD

Allopathic & Osteopathic Physicians|Internal Medicine · SAN JOSE, CA · NPI 1275514069

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 Thang Duc Tran, MD received $1,146.52 in general payments during 2025 across 27 reported records.

ABBVIE INC. accounted for 40.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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

Gilead Sciences, 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 Vemlidy as an associated drug or biological on 782 records involving 554 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Vemlidy by this doctor in 2024.

IBSA Pharma 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 Licart as an associated drug or biological on 6755 records involving 4085 distinct recipient NPIs. Public Medicare Part D data also shows 39 claims for Licart by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,146.52

27 reported records · 7 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
ABBVIE INC. Unresolved — no canonical attribution shown $459.3040.1%122025
REVANCE THERAPEUTICS, INC. Unresolved — no canonical attribution shown $247.4421.6%42025
Eisai Inc. Unresolved — no canonical attribution shown $124.5510.9%12025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $121.0810.6%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $116.7410.2%62025
IBSA Pharma Inc. Unresolved — no canonical attribution shown $40.943.6%22025
MERZ NORTH AMERICA, INC. Unresolved — no canonical attribution shown $36.473.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,146.5227

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
DAXXIFY
Normalized: daxxify
Drug REVANCE THERAPEUTICS, INC. $247.44 4 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $246.19 7 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $124.55 1 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $121.08 1 2025
Source payment records
Flector
Normalized: flector
Drug IBSA Pharma Inc. $40.94 2 2025
Source payment records
Licart
Normalized: licart
Drug IBSA Pharma Inc. $40.94 2 2025
Source payment records
Tirosint
Normalized: tirosint
Drug IBSA Pharma Inc. $40.94 2 2025
Source payment records
Xeomin
Normalized: xeomin
Biological MERZ NORTH AMERICA, INC. $36.47 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
Licart
licart
2025 Licart 2024 39 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
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Vemlidy
open payments reported associated product
CMS Open Payments — General Payments
782 supporting records · 554 recipient NPIs · example record 1234350906
Vemlidy · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
IBSA Pharma Inc.
Exact reporting entity; no affiliate inference
2025 Licart
open payments reported associated product
CMS Open Payments — General Payments
6755 supporting records · 4085 recipient NPIs · example record 1211687357
Licart · 2024
Exact normalized brand match · 1 Part D row
39 16

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
Atorvastatin CalciumAtorvastatin Calcium698195
Losartan PotassiumLosartan Potassium587160
Amlodipine BesylateAmlodipine Besylate503150
OmeprazoleOmeprazole34595
Fluticasone PropionateFluticasone Propionate316107
Metformin HclMetformin Hcl30388
JardianceEmpagliflozin29654
SimvastatinSimvastatin25367
GabapentinGabapentin24879
Montelukast SodiumMontelukast Sodium24461
HydrochlorothiazideHydrochlorothiazide19461
Metoprolol SuccinateMetoprolol Succinate19355
Triamcinolone AcetonideTriamcinolone Acetonide18171
Tamsulosin HclTamsulosin Hcl17452
Levothyroxine SodiumLevothyroxine Sodium11030
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide10730
FarxigaDapagliflozin Propanediol10430
LisinoprilLisinopril10232
Albuterol Sulfate HfaAlbuterol Sulfate9728
Alendronate SodiumAlendronate Sodium9230
MirtazapineMirtazapine9121
VascepaIcosapent Ethyl8017
Pantoprazole SodiumPantoprazole Sodium7822
Diclofenac SodiumDiclofenac Sodium7737
Vitamin D2Ergocalciferol (Vitamin D2)7325
MeloxicamMeloxicam7134
Metoprolol TartrateMetoprolol Tartrate6418
FinasterideFinasteride6216
JanuviaSitagliptin Phosphate62suppressed
Rosuvastatin CalciumRosuvastatin Calcium5521
NaproxenNaproxen5319
PrednisonePrednisone5331
Icosapent EthylIcosapent Ethyl4821
Cromolyn SodiumCromolyn Sodium4617
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters4513
AllopurinolAllopurinol4314
Sertraline HclSertraline Hcl41suppressed
ClopidogrelClopidogrel Bisulfate4011
Fosinopril SodiumFosinopril Sodium4011
Ventolin HfaAlbuterol Sulfate40suppressed
LicartDiclofenac Epolamine3916
FamotidineFamotidine3715
Fluticasone-SalmeterolFluticasone Propion/Salmeterol37suppressed
Hydralazine HclHydralazine Hcl3714
AzithromycinAzithromycin3629
HydrocortisoneHydrocortisone3618
EliquisApixaban34suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter3311
Sildenafil CitrateSildenafil Citrate31suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril30suppressed
FurosemideFurosemide29suppressed
GlimepirideGlimepiride29suppressed
LoperamideLoperamide Hcl2926
TradjentaLinagliptin29suppressed
Advair HfaFluticasone Propion/Salmeterol27suppressed
Trazodone HclTrazodone Hcl27suppressed
VemlidyTenofovir Alafenamide26suppressed
AtenololAtenolol25suppressed
Donepezil HclDonepezil Hcl25suppressed
CarvedilolCarvedilol24suppressed
Ciprofloxacin HclCiprofloxacin Hcl2419
AmoxicillinAmoxicillin2321
Benazepril HclBenazepril Hcl22suppressed
Meclizine HclMeclizine Hcl22suppressed
Qvar RedihalerBeclomethasone Dipropionate22suppressed
Doxycycline MonohydrateDoxycycline Monohydrate2118
GlipizideGlipizide21suppressed
Hydroxyzine HclHydroxyzine Hcl21suppressed
IbuprofenIbuprofen2115
Oxybutynin ChlorideOxybutynin Chloride21suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2017
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip1915
Promethazine-DmPromethazine/Dextromethorphan1911
Fluoxetine HclFluoxetine Hcl18suppressed
LactuloseLactulose18suppressed
Doxycycline HyclateDoxycycline Hyclate1714
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
KetoconazoleKetoconazole17suppressed
Megestrol AcetateMegestrol Acetate17suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Potassium ChloridePotassium Chloride17suppressed
Azelastine HclAzelastine Hcl16suppressed
Dexlansoprazole DrDexlansoprazole16suppressed
EzetimibeEzetimibe16suppressed
Isosorbide DinitrateIsosorbide Dinitrate16suppressed
Memantine HclMemantine Hcl16suppressed
Wixela InhubFluticasone Propion/Salmeterol16suppressed
CelecoxibCelecoxib15suppressed
BenzonatateBenzonatate14suppressed
Chlorhexidine GluconateChlorhexidine Gluconate14suppressed
Metformin Hcl ErMetformin Hcl14suppressed
Pioglitazone HclPioglitazone Hcl14suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf14suppressed
ZenpepLipase/Protease/Amylase14suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads13suppressed
Diclofenac PotassiumDiclofenac Potassium13suppressed
Fluocinolone AcetonideFluocinolone Acetonide13suppressed
NitroglycerinNitroglycerin13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
TravoprostTravoprost13suppressed
BrilintaTicagrelor12suppressed
Proctozone-HcHydrocortisone12suppressed
ArexvyRsvpref3 Antigen/As01e/Pf1111
Betamethasone DipropionateBetamethasone Dipropionate11suppressed
InvokametCanagliflozin/Metformin Hcl11suppressed
Quetiapine FumarateQuetiapine Fumarate11suppressed
TwinrixHepatitis A And B Vaccine/Pf11suppressed

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 $1,146.52 · 27 records ABBVIE INC. BOTOX, DAXXIFY, Flector, Leqembi, Licart, PURIFIED CORTROPHIN GEL, Tirosint, Xeomin 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