Healthcare provider profile · identity verified

Narain D Mandhan, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · MONTICELLO, IL · NPI 1730170655

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 Narain D Mandhan, M.D. received $52.13 in general payments during 2025 across 3 reported records.

Amgen Inc. accounted for 57.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

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

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 122 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$52.13

3 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
Amgen Inc. Unresolved — no canonical attribution shown $30.0557.6%22025
PFIZER INC. Unresolved — no canonical attribution shown $22.0842.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$52.133

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
OTEZLA
Normalized: otezla
Drug Amgen Inc. $30.05 2 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $30.05 2 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $22.08 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $22.08 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
ELIQUIS
eliquis
2025 Eliquis 2024 122 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
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
122 23

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 Calcium374103
Pantoprazole SodiumPantoprazole Sodium32283
Metoprolol SuccinateMetoprolol Succinate26472
Levothyroxine SodiumLevothyroxine Sodium25060
Amlodipine BesylateAmlodipine Besylate22562
Losartan PotassiumLosartan Potassium22559
Tamsulosin HclTamsulosin Hcl21649
GabapentinGabapentin19139
Duloxetine HclDuloxetine Hcl18623
Rosuvastatin CalciumRosuvastatin Calcium16343
Metformin Hcl ErMetformin Hcl13032
EliquisApixaban12223
Warfarin SodiumWarfarin Sodium12013
MounjaroTirzepatide11918
Potassium ChloridePotassium Chloride11723
ArexvyRsvpref3 Antigen/As01e/Pf116116
Sertraline HclSertraline Hcl11322
LisinoprilLisinopril11229
Metoprolol TartrateMetoprolol Tartrate10322
Montelukast SodiumMontelukast Sodium10334
CarvedilolCarvedilol10025
OmeprazoleOmeprazole9825
TelmisartanTelmisartan9827
FurosemideFurosemide9527
AllopurinolAllopurinol9424
Pravastatin SodiumPravastatin Sodium9423
FinasterideFinasteride9317
Quetiapine FumarateQuetiapine Fumarate92suppressed
SpironolactoneSpironolactone9123
JardianceEmpagliflozin8819
Trazodone HclTrazodone Hcl8817
Escitalopram OxalateEscitalopram Oxalate8516
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8121
Albuterol Sulfate HfaAlbuterol Sulfate8031
Ibandronate SodiumIbandronate Sodium8024
PregabalinPregabalin8017
AlprazolamAlprazolam74suppressed
HydrochlorothiazideHydrochlorothiazide6819
SimvastatinSimvastatin6720
Trelegy ElliptaFluticasone/Umeclidin/Vilanter6612
Ropinirole HclRopinirole Hcl6516
Bupropion XlBupropion Hcl6413
GlimepirideGlimepiride6317
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid6317
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide6015
ShingrixVaricella-Zoster Ge/As01b/Pf5941
ClonazepamClonazepam58suppressed
FamotidineFamotidine5713
Venlafaxine Hcl ErVenlafaxine Hcl57suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl54suppressed
Buspirone HclBuspirone Hcl5415
Diltiazem 24hr Er (Cd)Diltiazem Hcl5017
Breo ElliptaFluticasone/Vilanterol4911
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen49suppressed
MeloxicamMeloxicam4917
Clonidine HclClonidine Hcl4812
FenofibrateFenofibrate46suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac4443
TrulicityDulaglutide44suppressed
Colestipol HclColestipol Hcl4312
ClopidogrelClopidogrel Bisulfate4213
Cyclobenzaprine HclCyclobenzaprine Hcl4211
OzempicSemaglutide42suppressed
LorazepamLorazepam41suppressed
Tramadol HclTramadol Hcl4114
Metformin HclMetformin Hcl4011
Propranolol Hcl ErPropranolol Hcl39suppressed
TorsemideTorsemide38suppressed
TradjentaLinagliptin38suppressed
EzetimibeEzetimibe3712
Pramipexole DihydrochloridePramipexole Di-Hcl37suppressed
Repatha SureclickEvolocumab37suppressed
Zolpidem TartrateZolpidem Tartrate34suppressed
Diltiazem 24hr ErDiltiazem Hcl32suppressed
Donepezil HclDonepezil Hcl3211
Solifenacin SuccinateSolifenacin Succinate32suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog31suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic31suppressed
PrednisonePrednisone3115
Humalog Kwikpen U-100Insulin Lispro30suppressed
LamotrigineLamotrigine30suppressed
Tizanidine HclTizanidine Hcl28suppressed
AripiprazoleAripiprazole27suppressed
Fluticasone PropionateFluticasone Propionate2713
JanuviaSitagliptin Phosphate27suppressed
SilodosinSilodosin27suppressed
XareltoRivaroxaban27suppressed
Carbidopa-LevodopaCarbidopa/Levodopa26suppressed
Novolog FlexpenInsulin Aspart25suppressed
Testosterone CypionateTestosterone Cypionate25suppressed
BumetanideBumetanide24suppressed
RisperidoneRisperidone24suppressed
TopiramateTopiramate24suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2416
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr23suppressed
Ciprofloxacin HclCiprofloxacin Hcl2320
Fluoxetine HclFluoxetine Hcl22suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic21suppressed
Paroxetine HclParoxetine Hcl20suppressed
PrimidonePrimidone20suppressed
Spiriva RespimatTiotropium Bromide20suppressed
SynthroidLevothyroxine Sodium20suppressed
TemazepamTemazepam20suppressed
BreynaBudesonide/Formoterol Fumarate19suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended19suppressed
BaclofenBaclofen18suppressed
EntrestoSacubitril/Valsartan18suppressed
Divalproex SodiumDivalproex Sodium17suppressed
LantusInsulin Glargine,hum.Rec.Anlog17suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic17suppressed
ColchicineColchicine16suppressed
DiazepamDiazepam16suppressed
GemfibrozilGemfibrozil16suppressed
GlipizideGlipizide15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
LatanoprostLatanoprost15suppressed
AzithromycinAzithromycin1414
Ondansetron OdtOndansetron14suppressed
Alendronate SodiumAlendronate Sodium13suppressed
CephalexinCephalexin1313
EstradiolEstradiol13suppressed
HydrocortisoneHydrocortisone13suppressed
LevetiracetamLevetiracetam13suppressed
NabumetoneNabumetone13suppressed
ValacyclovirValacyclovir Hcl13suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate12suppressed
CelecoxibCelecoxib12suppressed
FenofibrateFenofibrate Nanocrystallized12suppressed
Rabeprazole SodiumRabeprazole Sodium12suppressed
RoflumilastRoflumilast12suppressed
Spironolactone-HctzSpironolact/Hydrochlorothiazid12suppressed
VascepaIcosapent Ethyl12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
Xtampza ErOxycodone Myristate12suppressed
Ipratropium BromideIpratropium Bromide11suppressed
Oxycodone HclOxycodone Hcl11suppressed
TrimethoprimTrimethoprim11suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed

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 $52.13 · 3 records Amgen Inc. ELIQUIS, NURTEC ODT, OTEZLA, REPATHA 1
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