Healthcare provider profile · identity verified

Man Vuong-Dac, MD

Allopathic & Osteopathic Physicians|Family Medicine · BELL, CA · NPI 1396929147

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 Man Vuong-Dac, MD received $114.63 in general payments during 2025 across 4 reported records.

Boehringer Ingelheim Pharmaceuticals, Inc. accounted for 76.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Boehringer Ingelheim 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 126 claims for Jardiance by this doctor in 2024.

Boehringer Ingelheim 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 SYNJARDY as an associated drug or biological on 33 records involving 33 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Synjardy by this doctor in 2024.

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

Payment overview · 2025

General Payments

$114.63

4 reported records · 2 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
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $87.7276.5%32025
Madrigal Pharmaceuticals Unresolved — no canonical attribution shown $26.9123.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$114.634

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
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $87.72 3 2025
Source payment records
REZDIFFRA
Normalized: rezdiffra
Drug Madrigal Pharmaceuticals $26.91 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
JARDIANCE
jardiance
2025 Jardiance 2024 126 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
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
126 29
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 SYNJARDY
open payments reported associated product
CMS Open Payments — General Payments
33 supporting records · 33 recipient NPIs · example record 1222725005
Synjardy · 2024
Exact normalized brand match · 1 Part D row
25 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
Atorvastatin CalciumAtorvastatin Calcium29195
Rosuvastatin CalciumRosuvastatin Calcium16754
Alendronate SodiumAlendronate Sodium16348
Metformin HclMetformin Hcl15745
Tamsulosin HclTamsulosin Hcl12741
JardianceEmpagliflozin12629
Amlodipine BesylateAmlodipine Besylate12241
Levothyroxine SodiumLevothyroxine Sodium9828
Losartan PotassiumLosartan Potassium9529
LisinoprilLisinopril9228
OmeprazoleOmeprazole8726
Pantoprazole SodiumPantoprazole Sodium7425
HydrochlorothiazideHydrochlorothiazide7121
Fluticasone PropionateFluticasone Propionate6524
FurosemideFurosemide6321
GabapentinGabapentin6025
Metoprolol SuccinateMetoprolol Succinate6016
VascepaIcosapent Ethyl6012
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5921
Benazepril HclBenazepril Hcl5717
EzetimibeEzetimibe5119
Metformin Hcl ErMetformin Hcl5118
Albuterol Sulfate HfaAlbuterol Sulfate4823
IbuprofenIbuprofen4820
FinasterideFinasteride4615
GlipizideGlipizide4614
JanuviaSitagliptin Phosphate45suppressed
CelecoxibCelecoxib4214
Sertraline HclSertraline Hcl4216
Metoprolol TartrateMetoprolol Tartrate4013
SimvastatinSimvastatin3914
Pravastatin SodiumPravastatin Sodium37suppressed
EliquisApixaban36suppressed
Solifenacin SuccinateSolifenacin Succinate3412
Diclofenac SodiumDiclofenac Sodium3116
NaproxenNaproxen3116
Pioglitazone HclPioglitazone Hcl2911
Enalapril MaleateEnalapril Maleate28suppressed
Warfarin SodiumWarfarin Sodium28suppressed
GlimepirideGlimepiride27suppressed
LorazepamLorazepam27suppressed
Montelukast SodiumMontelukast Sodium2612
SynjardyEmpagliflozin/Metformin Hcl25suppressed
CarvedilolCarvedilol23suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide23suppressed
MyrbetriqMirabegron23suppressed
Ondansetron HclOndansetron Hcl23suppressed
AtenololAtenolol22suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads19suppressed
AzithromycinAzithromycin1918
Trazodone HclTrazodone Hcl19suppressed
Icosapent EthylIcosapent Ethyl18suppressed
MeloxicamMeloxicam18suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1813
ColchicineColchicine17suppressed
Oxybutynin Chloride ErOxybutynin Chloride17suppressed
Sildenafil CitrateSildenafil Citrate17suppressed
LevofloxacinLevofloxacin1613
Meclizine HclMeclizine Hcl1611
Benazepril-HydrochlorothiazideBenazepril/Hydrochlorothiazide15suppressed
Candesartan CilexetilCandesartan Cilexetil15suppressed
Glipizide ErGlipizide15suppressed
AcarboseAcarbose14suppressed
ClopidogrelClopidogrel Bisulfate14suppressed
FamotidineFamotidine14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1312
Sumatriptan SuccinateSumatriptan Succinate13suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip12suppressed
Ciprofloxacin HclCiprofloxacin Hcl11suppressed
Tizanidine HclTizanidine Hcl11suppressed
Tramadol HclTramadol Hcl11suppressed
XareltoRivaroxaban11suppressed

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 $114.63 · 4 records Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE, REZDIFFRA 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