Healthcare provider profile · identity verified

Marc Vanderleeden, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · SPRINGFIELD, MA · NPI 1801883194

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 Marc Vanderleeden, M.D. received $989.35 in general payments during 2025 across 47 reported records.

Novo Nordisk Inc accounted for 19.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 22 associated products.

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

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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 82 claims for Synthroid 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 210 claims for Jardiance by this doctor in 2024.

Chiesi 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 MYCAPSSA as an associated drug or biological on 1594 records involving 919 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Mycapssa 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 210 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 530 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 118 claims for Trulicity 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 Fiasp as an associated drug or biological on 15 records involving 15 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Fiasp by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Paxlovid by this doctor in 2024.

SANOFI-AVENTIS U.S. 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 LANTUS as an associated drug or biological on 12 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Lantus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$989.35

47 reported records · 18 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $194.9619.7%92025
Lilly USA, LLC Unresolved — no canonical attribution shown $180.6518.3%92025
Amgen Inc. Unresolved — no canonical attribution shown $108.1210.9%52025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $107.1410.8%52025
ABBVIE INC. Unresolved — no canonical attribution shown $61.246.2%32025
Chiesi USA, Inc. Unresolved — no canonical attribution shown $58.305.9%32025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $44.974.5%22025
Dexcom, Inc. Unresolved — no canonical attribution shown $33.083.3%12025
Antares Pharma, Inc. Unresolved — no canonical attribution shown $24.972.5%12025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $24.482.5%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $24.262.5%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $21.452.2%12025
Radius Health, Inc. Unresolved — no canonical attribution shown $21.402.2%12025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $19.071.9%12025
Rhythm Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.441.8%12025
PFIZER INC. Unresolved — no canonical attribution shown $17.391.8%12025
Ascendis Pharma Endocrinology Inc Unresolved — no canonical attribution shown $15.461.6%12025
Abbott Laboratories Unresolved — no canonical attribution shown $14.971.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$989.3547

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., Lilly USA, LLC $175.51 8 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $112.28 6 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $108.46 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $91.59 5 2025
Source payment records
Repatha
Normalized: repatha
Biological Amgen Inc. $69.50 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $63.44 3 2025
Source payment records
MYCAPSSA
Normalized: mycapssa
Drug Chiesi USA, Inc. $58.30 3 2025
Source payment records
RECORLEV
Normalized: recorlev
Drug Xeris Pharmaceuticals, Inc. $44.97 2 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $38.62 2 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $35.53 2 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $33.08 1 2025
Source payment records
XYOSTED
Normalized: xyosted
Drug Antares Pharma, Inc. $24.97 1 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $24.48 1 2025
Source payment records
CRENESSITY
Normalized: crenessity
Drug Neurocrine BioSciences, Inc. $24.26 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $21.45 1 2025
Source payment records
Tymlos
Normalized: tymlos
Drug Radius Health, Inc. $21.40 1 2025
Source payment records
ISTURISA
Normalized: isturisa
Drug RECORDATI_RARE_DISEASES_INC. $19.07 1 2025
Source payment records
IMCIVREE
Normalized: imcivree
Drug Rhythm Pharmaceuticals, Inc. $17.44 1 2025
Source payment records
GENOTROPIN
Normalized: genotropin
Drug PFIZER INC. $17.39 1 2025
Source payment records
SOMAVERT
Normalized: somavert
Drug PFIZER INC. $17.39 1 2025
Source payment records
Yorvipath
Normalized: yorvipath
Drug Ascendis Pharma Endocrinology Inc $15.46 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $14.97 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 210 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 530 exact normalized Medicare Part D
MYCAPSSA
mycapssa
2025 Mycapssa 2024 17
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 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
82 22
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
210 57
Chiesi USA, Inc.
Exact reporting entity; no affiliate inference
2025 MYCAPSSA
open payments reported associated product
CMS Open Payments — General Payments
1594 supporting records · 919 recipient NPIs · example record 1242155545
Mycapssa · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
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
210 57
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
530 95
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
118 28
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Fiasp
open payments reported associated product
CMS Open Payments — General Payments
15 supporting records · 15 recipient NPIs · example record 1188262936
Fiasp · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
42 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
14 14
SANOFI-AVENTIS U.S. LLC
Exact reporting entity; no affiliate inference
2025 LANTUS
open payments reported associated product
CMS Open Payments — General Payments
12 supporting records · 11 recipient NPIs · example record 1233196856
Lantus · 2024
Exact normalized brand match · 1 Part D row
35 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
MounjaroTirzepatide53095
Levothyroxine SodiumLevothyroxine Sodium431114
Atorvastatin CalciumAtorvastatin Calcium32589
JardianceEmpagliflozin21057
Amlodipine BesylateAmlodipine Besylate19648
GlipizideGlipizide16442
LisinoprilLisinopril15142
Metformin HclMetformin Hcl14850
SimvastatinSimvastatin14839
LorazepamLorazepam14729
Rosuvastatin CalciumRosuvastatin Calcium14041
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12233
HydrochlorothiazideHydrochlorothiazide11837
TrulicityDulaglutide11828
OmeprazoleOmeprazole11135
Alendronate SodiumAlendronate Sodium8930
GabapentinGabapentin8728
Sertraline HclSertraline Hcl8525
SynthroidLevothyroxine Sodium8222
EzetimibeEzetimibe8122
Pioglitazone HclPioglitazone Hcl7922
Metoprolol SuccinateMetoprolol Succinate7823
Tamsulosin HclTamsulosin Hcl7618
Tramadol HclTramadol Hcl7414
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog7323
Trazodone HclTrazodone Hcl7218
Glipizide-MetforminGlipizide/Metformin Hcl7122
FarxigaDapagliflozin Propanediol6822
TestosteroneTestosterone62suppressed
Labetalol HclLabetalol Hcl5415
IrbesartanIrbesartan5214
Ultra-Fine Short Pen NeedlePen Needle, Diabetic4916
Citalopram HbrCitalopram Hydrobromide4812
Losartan PotassiumLosartan Potassium4512
EliquisApixaban42suppressed
ClonazepamClonazepam41suppressed
HydrocortisoneHydrocortisone4012
Potassium ChloridePotassium Chloride37suppressed
FurosemideFurosemide3612
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3611
LantusInsulin Glargine,hum.Rec.Anlog35suppressed
Enalapril MaleateEnalapril Maleate34suppressed
HumalogInsulin Lispro3411
AlprazolamAlprazolam33suppressed
Oxycodone HclOxycodone Hcl32suppressed
AllopurinolAllopurinol30suppressed
Humalog Kwikpen U-100Insulin Lispro3011
Testosterone CypionateTestosterone Cypionate30suppressed
Venlafaxine Hcl ErVenlafaxine Hcl30suppressed
Novolog FlexpenInsulin Aspart2913
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen29suppressed
FenofibrateFenofibrate27suppressed
AtenololAtenolol26suppressed
Cinacalcet HclCinacalcet Hcl26suppressed
Metformin Hcl ErMetformin Hcl26suppressed
CarvedilolCarvedilol25suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic2513
Pantoprazole SodiumPantoprazole Sodium25suppressed
Pravastatin SodiumPravastatin Sodium25suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid25suppressed
FamotidineFamotidine23suppressed
Doxycycline MonohydrateDoxycycline Monohydrate2219
Metoprolol TartrateMetoprolol Tartrate22suppressed
Albuterol Sulfate HfaAlbuterol Sulfate21suppressed
Duloxetine HclDuloxetine Hcl21suppressed
MethimazoleMethimazole21suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)18suppressed
Paroxetine HclParoxetine Hcl18suppressed
Repatha SyringeEvolocumab18suppressed
MycapssaOctreotide Acetate17suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
Fluticasone PropionateFluticasone Propionate16suppressed
Donepezil HclDonepezil Hcl15suppressed
Glipizide ErGlipizide15suppressed
MirtazapineMirtazapine15suppressed
Ondansetron HclOndansetron Hcl15suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic15suppressed
ValsartanValsartan15suppressed
FenofibrateFenofibrate Nanocrystallized14suppressed
JanuviaSitagliptin Phosphate14suppressed
Levemir FlexpenInsulin Detemir14suppressed
Nifedipine ErNifedipine14suppressed
PaxlovidNirmatrelvir/Ritonavir1414
TirosintLevothyroxine Sodium14suppressed
AnastrozoleAnastrozole13suppressed
CarisoprodolCarisoprodol13suppressed
Doxepin HclDoxepin Hcl13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav12suppressed
Insulin SyringeSyringe And Needle,insulin,1ml12suppressed
Montelukast SodiumMontelukast Sodium12suppressed
Sildenafil CitrateSildenafil Citrate12suppressed
Wixela InhubFluticasone Propion/Salmeterol12suppressed
CelecoxibCelecoxib11suppressed
FentanylFentanyl11suppressed
FiaspInsulin Aspart (Niacinamide)11suppressed
GlimepirideGlimepiride11suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro11suppressed
Insulin SyringeSyringe-Needle,insulin,0.5 Ml11suppressed
LevoxylLevothyroxine Sodium11suppressed
Methylphenidate ErMethylphenidate Hcl11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
Oxybutynin Chloride ErOxybutynin Chloride11suppressed
TorsemideTorsemide11suppressed

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 $989.35 · 47 records Novo Nordisk Inc CRENESSITY, Dexcom G6 Transmitter, EVENITY, FREESTYLE LIBRE 3, GENOTROPIN, IMCIVREE, ISTURISA, JARDIANCE, Kerendia, MOUNJARO, MYCAPSSA, Ozempic, RECORLEV, Repatha, Rybelsus, SOMAVERT, TZIELD, Tymlos, Wegovy, XYOSTED, Yorvipath, ZEPBOUND 10
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