Healthcare provider profile · identity verified

Melchor P Cardenas, MD

Allopathic & Osteopathic Physicians|Family Medicine · LAREDO, TX · NPI 1366423725

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 Melchor P Cardenas, MD received $887.30 in general payments during 2025 across 23 reported records.

AstraZeneca Pharmaceuticals LP accounted for 62.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Ozempic, Rexulti.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 104 claims for Farxiga by this doctor in 2024.

Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 88 claims for Jardiance by this doctor in 2024.

Lilly USA, 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Mounjaro by this doctor in 2024.

Lilly USA, 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Trulicity by this doctor in 2024.

Lundbeck 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 REXULTI as an associated drug or biological on 71829 records involving 25812 distinct recipient NPIs. Public Medicare Part D data also shows 84 claims for Rexulti by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 163 claims for Ozempic by this doctor in 2024.

Novo Nordisk 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 47 claims for Rybelsus by this doctor in 2024.

Otsuka America Pharmaceutical, 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 84 claims for Rexulti by this doctor in 2024.

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

Payment overview · 2025

General Payments

$887.30

23 reported records · 9 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $550.9262.1%82025
Novo Nordisk Inc Unresolved — no canonical attribution shown $143.1416.1%42025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $54.356.1%32025
Lundbeck LLC Unresolved — no canonical attribution shown $52.005.9%32025
Agios Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.152.4%12025
SANOFI PASTEUR INC. Unresolved — no canonical attribution shown $19.072.1%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $16.761.9%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $15.501.8%12025
Amgen Inc. Unresolved — no canonical attribution shown $14.411.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$887.3023

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
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $241.21 2 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $167.17 4 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $143.14 4 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $142.54 2 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $68.76 4 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $54.35 3 2025
Source payment records
PYRUKYND
Normalized: pyrukynd
Drug Agios Pharmaceuticals, Inc. $21.15 1 2025
Source payment records
BEYFORTUS
Normalized: beyfortus
Biological SANOFI PASTEUR INC. $19.07 1 2025
Source payment records
MENQUADFI
Normalized: menquadfi
Biological SANOFI PASTEUR INC. $19.07 1 2025
Source payment records
VAXELIS
Normalized: vaxelis
Biological SANOFI PASTEUR INC. $19.07 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $15.50 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $14.41 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $14.41 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
FARXIGA
farxiga
2025 Farxiga 2024 104 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 163 exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 84 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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
104 44
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
88 32
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
31 11
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
23 suppressed by CMS
Lundbeck LLC
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
71829 supporting records · 25812 recipient NPIs · example record 1251759986
Rexulti · 2024
Exact normalized brand match · 1 Part D row
84 16
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
163 45
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
47 24
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
84 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 Calcium1510572
Enalapril MaleateEnalapril Maleate656245
Metformin HclMetformin Hcl567206
Amlodipine BesylateAmlodipine Besylate476172
GabapentinGabapentin439156
Levothyroxine SodiumLevothyroxine Sodium424140
Losartan PotassiumLosartan Potassium366129
NaproxenNaproxen340113
Alendronate SodiumAlendronate Sodium331125
Pantoprazole SodiumPantoprazole Sodium31798
ClopidogrelClopidogrel Bisulfate305134
Tamsulosin HclTamsulosin Hcl298107
FurosemideFurosemide29084
Fluticasone PropionateFluticasone Propionate274119
SimvastatinSimvastatin27383
LisinoprilLisinopril248102
Montelukast SodiumMontelukast Sodium24283
Zolpidem TartrateZolpidem Tartrate24237
FamotidineFamotidine23795
Metoprolol SuccinateMetoprolol Succinate21882
Sertraline HclSertraline Hcl21175
Tramadol HclTramadol Hcl21040
Trazodone HclTrazodone Hcl20776
Donepezil HclDonepezil Hcl19750
OmeprazoleOmeprazole19176
Pioglitazone HclPioglitazone Hcl19076
HydrochlorothiazideHydrochlorothiazide17166
OzempicSemaglutide16345
Glipizide ErGlipizide15968
AlprazolamAlprazolam15626
Rosuvastatin CalciumRosuvastatin Calcium14260
Acetaminophen-CodeineAcetaminophen With Codeine13724
MeloxicamMeloxicam13034
GlipizideGlipizide12455
Diclofenac SodiumDiclofenac Sodium12247
Metoprolol TartrateMetoprolol Tartrate11838
LorazepamLorazepam11420
JanuviaSitagliptin Phosphate11148
Meclizine HclMeclizine Hcl10550
FarxigaDapagliflozin Propanediol10444
EliquisApixaban10127
PregabalinPregabalin10021
FinasterideFinasteride9841
Pravastatin SodiumPravastatin Sodium9837
ClonazepamClonazepam9413
IbuprofenIbuprofen9048
Lantus SolostarInsulin Glargine,hum.Rec.Anlog9033
Albuterol Sulfate HfaAlbuterol Sulfate8929
JardianceEmpagliflozin8832
MirtazapineMirtazapine8837
CarvedilolCarvedilol8736
RexultiBrexpiprazole8416
Clonidine HclClonidine Hcl8120
Nifedipine ErNifedipine7425
Potassium ChloridePotassium Chloride7420
LevetiracetamLevetiracetam7121
Hydroxyzine HclHydroxyzine Hcl6620
FanaptIloperidone64suppressed
Ammonium LactateAmmonium Lactate6134
MyrbetriqMirabegron5924
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip5725
LactuloseLactulose5621
Ondansetron HclOndansetron Hcl5633
GlimepirideGlimepiride5422
TelmisartanTelmisartan5423
TradjentaLinagliptin5219
Divalproex SodiumDivalproex Sodium51suppressed
Buspirone HclBuspirone Hcl4817
Quetiapine FumarateQuetiapine Fumarate4714
RybelsusSemaglutide4724
Duloxetine HclDuloxetine Hcl46suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog45suppressed
CilostazolCilostazol4414
Tresiba Flextouch U-100Insulin Degludec4415
JanumetSitagliptin Phos/Metformin Hcl4313
EzetimibeEzetimibe4118
Labetalol HclLabetalol Hcl4116
Candesartan CilexetilCandesartan Cilexetil4011
CephalexinCephalexin4034
Citalopram HbrCitalopram Hydrobromide3915
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen3917
AllopurinolAllopurinol3816
ClotrimazoleClotrimazole3813
Esomeprazole MagnesiumEsomeprazole Magnesium3814
LinzessLinaclotide38suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3716
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3631
Solifenacin SuccinateSolifenacin Succinate3611
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic3515
Memantine HclMemantine Hcl3415
Oxybutynin ChlorideOxybutynin Chloride34suppressed
BelsomraSuvorexant3315
RamiprilRamipril3312
Tresiba Flextouch U-200Insulin Degludec33suppressed
Benazepril HclBenazepril Hcl3217
SpironolactoneSpironolactone32suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3127
MounjaroTirzepatide3111
Paroxetine HclParoxetine Hcl31suppressed
Alcohol PadsAlcohol Antiseptic Pads3012
AtenololAtenolol3011
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid30suppressed
Escitalopram OxalateEscitalopram Oxalate2914
BaclofenBaclofen28suppressed
Hydralazine HclHydralazine Hcl28suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide27suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter2612
Amiodarone HclAmiodarone Hcl2511
Dicyclomine HclDicyclomine Hcl25suppressed
FenofibrateFenofibrate Nanocrystallized2512
KetoconazoleKetoconazole25suppressed
Diltiazem HclDiltiazem Hcl24suppressed
Oxybutynin Chloride ErOxybutynin Chloride2414
Timolol MaleateTimolol Maleate24suppressed
Valproic AcidValproic Acid (As Sodium Salt)24suppressed
Fluoxetine HclFluoxetine Hcl23suppressed
Midodrine HclMidodrine Hcl23suppressed
TrulicityDulaglutide23suppressed
VascepaIcosapent Ethyl23suppressed
TemazepamTemazepam22suppressed
HaloperidolHaloperidol21suppressed
LantusInsulin Glargine,hum.Rec.Anlog21suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters2111
Propranolol HclPropranolol Hcl21suppressed
XifaxanRifaximin21suppressed
Benztropine MesylateBenztropine Mesylate20suppressed
MisoprostolMisoprostol20suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate1912
Levemir FlexpenInsulin Detemir19suppressed
LevofloxacinLevofloxacin1914
RisperidoneRisperidone19suppressed
PrimidonePrimidone18suppressed
SucralfateSucralfate18suppressed
ChlorthalidoneChlorthalidone1711
LovastatinLovastatin17suppressed
NitroglycerinNitroglycerin1711
OlanzapineOlanzapine17suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads16suppressed
ConstuloseLactulose16suppressed
EntrestoSacubitril/Valsartan16suppressed
Glipizide-MetforminGlipizide/Metformin Hcl16suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic16suppressed
PaxlovidNirmatrelvir/Ritonavir1616
Verapamil ErVerapamil Hcl16suppressed
Verapamil SrVerapamil Hcl16suppressed
Vitamin D2Ergocalciferol (Vitamin D2)16suppressed
AnastrozoleAnastrozole15suppressed
CefdinirCefdinir1512
IrbesartanIrbesartan15suppressed
Metformin Hcl ErMetformin Hcl15suppressed
Albuterol SulfateAlbuterol Sulfate14suppressed
AzithromycinAzithromycin1411
CholestyramineCholestyramine (With Sugar)14suppressed
PhenytoinPhenytoin14suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac1313
CalcitriolCalcitriol13suppressed
FluconazoleFluconazole13suppressed
Glucagon Emergency KitGlucagon13suppressed
HydrocortisoneHydrocortisone1313
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate13suppressed
Loteprednol EtabonateLoteprednol Etabonate13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
Nebivolol HclNebivolol Hcl13suppressed
Nitroglycerin PatchNitroglycerin13suppressed
ValsartanValsartan13suppressed
Bupropion HclBupropion Hcl12suppressed
Carbidopa-LevodopaCarbidopa/Levodopa12suppressed
Ciprofloxacin HclCiprofloxacin Hcl1212
Desmopressin AcetateDesmopressin Acetate12suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
Incontrol Pen NeedlePen Needle, Diabetic12suppressed
LacosamideLacosamide12suppressed
LatanoprostLatanoprost12suppressed
LoperamideLoperamide Hcl1211
LumiganBimatoprost12suppressed
Prenatal Vitamin Plus Low IronPnv,calcium 72/Iron/Folic Acid12suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1212
Single Use SwabAlcohol Antiseptic Pads12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
AbrysvoRsv Vacc, Pref A And Pref B/Pf1111
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
Icosapent EthylIcosapent Ethyl11suppressed
Novolin RInsulin Regular, Human11suppressed
Novolog FlexpenInsulin Aspart11suppressed
Olmesartan MedoxomilOlmesartan Medoxomil11suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended11suppressed
Verapamil Er PmVerapamil 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 $887.30 · 23 records AstraZeneca Pharmaceuticals LP AIRSUPRA, BEYFORTUS, BREZTRI, FARXIGA, GEMTESA, MENQUADFI, OTEZLA, Ozempic, PYRUKYND, REPATHA, REXULTI, VAXELIS, ZEPBOUND 8
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