Healthcare provider profile · identity verified

Daniel Dung Truong, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · FOUNTAIN VALLEY, CA · NPI 1992720916

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 Daniel Dung Truong, M.D. received $8,313.58 in general payments during 2025 across 240 reported records.

Ipsen Innovation accounted for 22.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 42 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Crexont, Gocovri, Inbrija, Ingrezza, Linzess, Nourianz, Nuplazid, Ubrelvy.

ABBVIE 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 296 claims for Linzess by this doctor in 2024.

ABBVIE 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 UBRELVY as an associated drug or biological on 299803 records involving 61203 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Ubrelvy by this doctor in 2024.

ACADIA Pharmaceuticals 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 NUPLAZID as an associated drug or biological on 20845 records involving 6448 distinct recipient NPIs. Public Medicare Part D data also shows 176 claims for Nuplazid by this doctor in 2024.

Amneal Pharmaceuticals LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported CREXONT as an associated drug or biological on 11358 records involving 3581 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Crexont by this doctor in 2024.

Amneal Pharmaceuticals LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ONGENTYS as an associated drug or biological on 728 records involving 311 distinct recipient NPIs. Public Medicare Part D data also shows 54 claims for Ongentys by this doctor in 2024.

Amneal Pharmaceuticals LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported RYTARY as an associated drug or biological on 200 records involving 121 distinct recipient NPIs. Public Medicare Part D data also shows 1031 claims for Rytary by this doctor in 2024.

KYOWA KIRIN, 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 NOURIANZ as an associated drug or biological on 307 records involving 305 distinct recipient NPIs. Public Medicare Part D data also shows 63 claims for Nourianz by this doctor in 2024.

MDD US Operations, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Gocovri as an associated drug or biological on 3202 records involving 1029 distinct recipient NPIs. Public Medicare Part D data also shows 123 claims for Gocovri by this doctor in 2024.

MDD US Operations, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Xadago as an associated drug or biological on 139 records involving 79 distinct recipient NPIs. Public Medicare Part D data also shows 107 claims for Xadago by this doctor in 2024.

Merz Pharmaceuticals, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported INBRIJA as an associated drug or biological on 4307 records involving 2211 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Inbrija by this doctor in 2024.

Neurocrine BioSciences, 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 INGREZZA as an associated drug or biological on 126456 records involving 27390 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Ingrezza by this doctor in 2024.

Teva Pharmaceuticals USA, 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 AUSTEDO as an associated drug or biological on 28 records involving 15 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Austedo by this doctor in 2024.

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

Payment overview · 2025

General Payments

$8,313.58

240 reported records · 34 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
Ipsen Innovation Unresolved — no canonical attribution shown $1,887.8322.7%32025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $1,446.5717.4%132025
ABBVIE INC. Unresolved — no canonical attribution shown $1,110.1713.3%522025
UCB, Inc. Unresolved — no canonical attribution shown $630.777.6%272025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $428.035.2%182025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $321.413.9%132025
Merz Pharmaceuticals, LLC Unresolved — no canonical attribution shown $289.253.5%122025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $265.233.2%112025
SK Life Science, Inc. SK Life Science, Inc.
exact · evidence 2025-04-03
$239.132.9%112025
Eisai Inc. Unresolved — no canonical attribution shown $194.612.3%92025
MDD US Operations, LLC Unresolved — no canonical attribution shown $185.492.2%92025
Biogen, Inc. Unresolved — no canonical attribution shown $174.782.1%62025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $165.742.0%82025
TG Therapeutics, Inc. Unresolved — no canonical attribution shown $103.921.2%42025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $99.771.2%52025
PFIZER INC. Unresolved — no canonical attribution shown $81.621.0%52025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $61.050.7%32025
CSL Behring Unresolved — no canonical attribution shown $57.310.7%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $57.110.7%32025
GE HEALTHCARE Unresolved — no canonical attribution shown $55.100.7%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $53.510.6%22025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $46.710.6%22025
BioXcel Therapeutics, Inc. Unresolved — no canonical attribution shown $45.870.6%22025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $42.070.5%22025
CATALYST PHARMACEUTICALS, INC. Unresolved — no canonical attribution shown $38.800.5%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $38.140.5%22025
Celgene Corporation Unresolved — no canonical attribution shown $37.460.5%22025
Lundbeck LLC Unresolved — no canonical attribution shown $36.690.4%22025
Aucta Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $24.740.3%32025
Octapharma USA, Inc. Unresolved — no canonical attribution shown $22.090.3%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$21.900.3%12025
Amgen Inc. Unresolved — no canonical attribution shown $17.580.2%12025
KYOWA KIRIN, INC. Unresolved — no canonical attribution shown $16.870.2%12025
Neurelis, Inc. Neurelis, Inc.
exact · evidence 2025-02-20
$16.260.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$5,656.50237
Travel and Lodging$1,499.082
Honoraria$1,158.001

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
BOTOX
Normalized: botox
Biological ABBVIE INC. $487.32 22 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $428.03 18 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $410.35 20 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $349.06 17 2025
Source payment records
Dysport
Normalized: dysport
Drug Ipsen Biopharmaceuticals, Inc $321.41 13 2025
Source payment records
Rystiggo
Normalized: rystiggo
Drug UCB, Inc. $301.93 15 2025
Source payment records
CREXONT
Normalized: crexont
Drug Amneal Pharmaceuticals LLC $288.57 12 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $265.23 11 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $194.61 9 2025
Source payment records
Nayzilam
Normalized: nayzilam
Drug UCB, Inc. $193.06 7 2025
Source payment records
Xeomin
Normalized: xeomin
Biological Merz Pharmaceuticals, LLC $191.80 8 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $174.78 6 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $165.74 8 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $154.43 8 2025
Source payment records
INBRIJA
Normalized: inbrija
Drug Merz Pharmaceuticals, LLC $150.65 6 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $135.78 5 2025
Source payment records
BRIUMVI
Normalized: briumvi
Drug TG Therapeutics, Inc. $103.92 4 2025
Source payment records
VYALEV
Normalized: vyalev
Drug ABBVIE INC. $100.81 4 2025
Source payment records
HYQVIA
Normalized: hyqvia
Biological Takeda Pharmaceuticals U.S.A., Inc. $99.77 5 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $81.62 5 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $81.62 5 2025
Source payment records
Qelbree
Normalized: qelbree
Drug MDD US Operations, LLC $76.38 4 2025
Source payment records
Gocovri
Normalized: gocovri
Drug MDD US Operations, LLC $76.16 4 2025
Source payment records
TYSABRI
Normalized: tysabri
Biological Biogen, Inc. $57.79 2 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $57.31 2 2025
Source payment records
AMYVID
Normalized: amyvid
Drug Lilly USA, LLC $57.11 3 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $57.11 3 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $53.51 2 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $46.71 2 2025
Source payment records
IGALMI
Normalized: igalmi
Drug BioXcel Therapeutics, Inc. $45.87 2 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $42.07 2 2025
Source payment records
FYCOMPA
Normalized: fycompa
Drug CATALYST PHARMACEUTICALS, INC. $38.80 2 2025
Source payment records
ZEPOSIA
Normalized: zeposia
Drug Celgene Corporation $37.46 2 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC $36.69 2 2025
Source payment records
EPIDIOLEX
Normalized: epidiolex
Drug JAZZ PHARMACEUTICALS INC. $36.25 2 2025
Source payment records
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $24.80 1 2025
Source payment records
Motpoly XR
Normalized: motpoly xr
Drug Aucta Pharmaceuticals, Inc. $24.74 3 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological Octapharma USA, Inc. $22.09 1 2025
Source payment records
NEXFRAME
Normalized: nexframe
Device Medtronic, Inc. $21.90 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $17.58 1 2025
Source payment records
NOURIANZ
Normalized: nourianz
Drug KYOWA KIRIN, INC. $16.87 1 2025
Source payment records
VALTOCO
Normalized: valtoco
Drug Neurelis, Inc. $16.26 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
CREXONT
crexont
2025 Crexont 2024 61 exact normalized Medicare Part D
Gocovri
gocovri
2025 Gocovri 2024 123 exact normalized Medicare Part D
INBRIJA
inbrija
2025 Inbrija 2024 16
Beneficiary count suppressed
exact normalized Medicare Part D
INGREZZA
ingrezza
2025 Ingrezza 2024 22
Beneficiary count suppressed
exact normalized Medicare Part D
LINZESS
linzess
2025 Linzess 2024 296 exact normalized Medicare Part D
NOURIANZ
nourianz
2025 Nourianz 2024 63 exact normalized Medicare Part D
NUPLAZID
nuplazid
2025 Nuplazid 2024 176 exact normalized Medicare Part D
UBRELVY
ubrelvy
2025 Ubrelvy 2024 16
Beneficiary count suppressed
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
296 72
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 UBRELVY
open payments reported associated product
CMS Open Payments — General Payments
299803 supporting records · 61203 recipient NPIs · example record 1201352530
Ubrelvy · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
ACADIA Pharmaceuticals Inc
Exact reporting entity; no affiliate inference
2025 NUPLAZID
open payments reported associated product
CMS Open Payments — General Payments
20845 supporting records · 6448 recipient NPIs · example record 1247763852
Nuplazid · 2024
Exact normalized brand match · 1 Part D row
176 24
Amneal Pharmaceuticals LLC
Exact reporting entity; no affiliate inference
2025 CREXONT
open payments reported associated product
CMS Open Payments — General Payments
11358 supporting records · 3581 recipient NPIs · example record 1220525531
Crexont · 2024
Exact normalized brand match · 1 Part D row
61 22
Amneal Pharmaceuticals LLC
Exact reporting entity; no affiliate inference
2025 ONGENTYS
open payments reported associated product
CMS Open Payments — General Payments
728 supporting records · 311 recipient NPIs · example record 1220525547
Ongentys · 2024
Exact normalized brand match · 1 Part D row
54 12
Amneal Pharmaceuticals LLC
Exact reporting entity; no affiliate inference
2025 RYTARY
open payments reported associated product
CMS Open Payments — General Payments
200 supporting records · 121 recipient NPIs · example record 1220526035
Rytary · 2024
Exact normalized brand match · 1 Part D row
1031 103
KYOWA KIRIN, INC.
Exact reporting entity; no affiliate inference
2025 NOURIANZ
open payments reported associated product
CMS Open Payments — General Payments
307 supporting records · 305 recipient NPIs · example record 1222071383
Nourianz · 2024
Exact normalized brand match · 1 Part D row
63 11
MDD US Operations, LLC
Exact reporting entity; no affiliate inference
2025 Gocovri
open payments reported associated product
CMS Open Payments — General Payments
3202 supporting records · 1029 recipient NPIs · example record 1241843637
Gocovri · 2024
Exact normalized brand match · 1 Part D row
123 18
MDD US Operations, LLC
Exact reporting entity; no affiliate inference
2025 Xadago
open payments reported associated product
CMS Open Payments — General Payments
139 supporting records · 79 recipient NPIs · example record 1241843808
Xadago · 2024
Exact normalized brand match · 1 Part D row
107 19
Merz Pharmaceuticals, LLC
Exact reporting entity; no affiliate inference
2025 INBRIJA
open payments reported associated product
CMS Open Payments — General Payments
4307 supporting records · 2211 recipient NPIs · example record 1232555387
Inbrija · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
Neurocrine BioSciences, Inc.
Exact reporting entity; no affiliate inference
2025 INGREZZA
open payments reported associated product
CMS Open Payments — General Payments
126456 supporting records · 27390 recipient NPIs · example record 1242766729
Ingrezza · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
Teva Pharmaceuticals USA, Inc.
Exact reporting entity; no affiliate inference
2025 AUSTEDO
open payments reported associated product
CMS Open Payments — General Payments
28 supporting records · 15 recipient NPIs · example record 1247249192
Austedo · 2024
Exact normalized brand match · 1 Part D row
20 suppressed by CMS

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
RytaryCarbidopa/Levodopa1031103
Carbidopa-LevodopaCarbidopa/Levodopa697150
ClonazepamClonazepam530111
Rasagiline MesylateRasagiline Mesylate33667
LinzessLinaclotide29672
EntacaponeEntacapone20444
NuplazidPimavanserin Tartrate17624
LactuloseLactulose15747
GocovriAmantadine Hcl12318
DhivyCarbidopa/Levodopa11320
NeuproRotigotine10722
XadagoSafinamide Mesylate10719
Donepezil HclDonepezil Hcl8815
DroxidopaDroxidopa72suppressed
NourianzIstradefylline6311
DiazepamDiazepam62suppressed
CrexontCarbidopa/Levodopa6122
Megestrol AcetateMegestrol Acetate6012
OngentysOpicapone5412
AmantadineAmantadine Hcl4816
Quetiapine FumarateQuetiapine Fumarate44suppressed
GabapentinGabapentin4311
TrulancePlecanatide37suppressed
Carbidopa-Levodopa-EntacaponeCarbidopa/Levodopa/Entacapone36suppressed
PrimidonePrimidone32suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl30suppressed
MotegrityPrucalopride Succinate29suppressed
MirtazapineMirtazapine26suppressed
Sertraline HclSertraline Hcl25suppressed
CarbidopaCarbidopa2412
PregabalinPregabalin23suppressed
IngrezzaValbenazine Tosylate22suppressed
Dexlansoprazole DrDexlansoprazole21suppressed
AustedoDeutetrabenazine20suppressed
InbrijaLevodopa16suppressed
Memantine HclMemantine Hcl16suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl16suppressed
UbrelvyUbrogepant16suppressed
Escitalopram OxalateEscitalopram Oxalate13suppressed
NortheraDroxidopa13suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
NamzaricMemantine Hcl/Donepezil Hcl12suppressed
NuedextaDextromethorphan Hbr/Quinidine12suppressed
Midodrine HclMidodrine Hcl11suppressed
Propranolol HclPropranolol Hcl11suppressed

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 $8,313.58 · 240 records Ipsen Innovation AMYVID, AUSTEDO XR, BOTOX, BRIUMVI, Briviact, CREXONT, Dysport, EPIDIOLEX, FYCOMPA, Gocovri, HYQVIA, Hizentra, IGALMI, INBRIJA, INGREZZA, KESIMPTA, KISUNLA, LINZESS, Leqembi, Motpoly XR, NEXFRAME, NOURIANZ, NUPLAZID, NURTEC ODT, Nayzilam, PANZYGA, QULIPTA, Qelbree, REXULTI, Rystiggo, Symbravo, TYSABRI, UBRELVY, ULTOMIRIS, UPLIZNA, VALTOCO, VUMERITY, VYALEV, XYWAV, Xeomin, ZAVZPRET, ZEPOSIA 12
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