Healthcare provider profile · identity verified

Nathaniel Augustus Barber, MD

Allopathic & Osteopathic Physicians|Internal Medicine · JERSEY CITY, NJ · NPI 1093849630

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 Nathaniel Augustus Barber, MD received $156.26 in general payments during 2025 across 9 reported records.

Merck Sharp & Dohme LLC accounted for 23.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

Azurity 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 EDARBYCLOR as an associated drug or biological on 283 records involving 215 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Edarbyclor by this doctor in 2024.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Trelegy Ellipta 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 51 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 35 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$156.26

9 reported records · 7 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
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $36.1023.1%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $35.4022.6%22025
ViiV Healthcare Company Unresolved — no canonical attribution shown $20.4313.1%12025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $18.3311.7%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $16.7910.7%12025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $15.6310.0%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $13.588.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$156.269

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
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $36.10 2 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $36.10 2 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $35.40 2 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $35.40 2 2025
Source payment records
CABENUVA
Normalized: cabenuva
Drug ViiV Healthcare Company $20.43 1 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.33 1 2025
Source payment records
  • 2025-03-25 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.33 · Open Payments source
M-M-R II
Normalized: m m r ii
Biological Merck Sharp & Dohme LLC $17.10 1 2025
Source payment records
VAQTA
Normalized: vaqta
Biological Merck Sharp & Dohme LLC $17.10 1 2025
Source payment records
VAXNEUVANCE
Normalized: vaxneuvance
Biological Merck Sharp & Dohme LLC $17.10 1 2025
Source payment records
EDARBI
Normalized: edarbi
Drug Azurity Pharmaceuticals, Inc. $15.63 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $13.58 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 51 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
Azurity Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 EDARBYCLOR
open payments reported associated product
CMS Open Payments — General Payments
283 supporting records · 215 recipient NPIs · example record 1242666846
Edarbyclor · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
21 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
51 16
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
35 suppressed by CMS
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
26 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
Amlodipine BesylateAmlodipine Besylate31197
Atorvastatin CalciumAtorvastatin Calcium23784
Albuterol Sulfate HfaAlbuterol Sulfate16939
Metformin HclMetformin Hcl15156
LisinoprilLisinopril13842
Rosuvastatin CalciumRosuvastatin Calcium12739
GabapentinGabapentin12245
Losartan PotassiumLosartan Potassium12036
SimvastatinSimvastatin9429
Metoprolol TartrateMetoprolol Tartrate8929
CarvedilolCarvedilol8524
Diclofenac SodiumDiclofenac Sodium6626
OmeprazoleOmeprazole6621
Montelukast SodiumMontelukast Sodium6215
ChlorthalidoneChlorthalidone5920
HydrochlorothiazideHydrochlorothiazide5616
Zolpidem TartrateZolpidem Tartrate53suppressed
LinzessLinaclotide5213
Tamsulosin HclTamsulosin Hcl5219
FurosemideFurosemide5119
JardianceEmpagliflozin5116
Pravastatin SodiumPravastatin Sodium5114
Levothyroxine SodiumLevothyroxine Sodium5013
AzithromycinAzithromycin4942
Enalapril MaleateEnalapril Maleate4912
Metformin Hcl ErMetformin Hcl4917
Metoprolol SuccinateMetoprolol Succinate4917
ClopidogrelClopidogrel Bisulfate4818
EliquisApixaban4815
AllopurinolAllopurinol4414
Alendronate SodiumAlendronate Sodium4317
Pantoprazole SodiumPantoprazole Sodium4112
Lantus SolostarInsulin Glargine,hum.Rec.Anlog39suppressed
Meclizine HclMeclizine Hcl3911
Alcohol PadsAlcohol Antiseptic Pads36suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl3613
IbuprofenIbuprofen3514
TrulicityDulaglutide35suppressed
Hydralazine HclHydralazine Hcl34suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3412
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride32suppressed
LidocaineLidocaine31suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril28suppressed
JanuviaSitagliptin Phosphate2811
ColchicineColchicine27suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol27suppressed
OzempicSemaglutide26suppressed
AlprazolamAlprazolam24suppressed
Doxycycline HyclateDoxycycline Hyclate2419
GlimepirideGlimepiride24suppressed
Synjardy XrEmpagliflozin/Metformin Hcl24suppressed
Tizanidine HclTizanidine Hcl24suppressed
Trazodone HclTrazodone Hcl23suppressed
ValsartanValsartan2311
Ventolin HfaAlbuterol Sulfate23suppressed
FamotidineFamotidine22suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter21suppressed
Cyproheptadine HclCyproheptadine Hcl20suppressed
Donepezil HclDonepezil Hcl20suppressed
Labetalol HclLabetalol Hcl20suppressed
Nebivolol HclNebivolol Hcl20suppressed
AtenololAtenolol18suppressed
Duloxetine HclDuloxetine Hcl18suppressed
Amitriptyline HclAmitriptyline Hcl17suppressed
CefuroximeCefuroxime Axetil1716
MinoxidilMinoxidil17suppressed
Nifedipine ErNifedipine17suppressed
PregabalinPregabalin17suppressed
Clonidine HclClonidine Hcl16suppressed
ProliaDenosumab16suppressed
Warfarin SodiumWarfarin Sodium16suppressed
LorazepamLorazepam15suppressed
SpironolactoneSpironolactone15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
Easy Comfort Pen NeedlePen Needle, Diabetic14suppressed
Midodrine HclMidodrine Hcl14suppressed
NaproxenNaproxen14suppressed
VascepaIcosapent Ethyl14suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
TradjentaLinagliptin13suppressed
XareltoRivaroxaban13suppressed
Diltiazem 24hr ErDiltiazem Hcl12suppressed
Pioglitazone HclPioglitazone Hcl12suppressed
EdarbyclorAzilsartan Med/Chlorthalidone11suppressed
EntrestoSacubitril/Valsartan11suppressed
EzetimibeEzetimibe11suppressed
FarxigaDapagliflozin Propanediol11suppressed
Janumet XrSitagliptin Phos/Metformin Hcl11suppressed
LumiganBimatoprost11suppressed
Ondansetron OdtOndansetron11suppressed
PaxlovidNirmatrelvir/Ritonavir1111

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 $156.26 · 9 records Merck Sharp & Dohme LLC AREXVY, CABENUVA, CAPVAXIVE, EDARBI, GARDASIL 9, JARDIANCE, M-M-R II, SHINGRIX, VAQTA, VAXNEUVANCE, XIFAXAN 5
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

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