Healthcare provider profile · identity verified

Nathaniel T Ross, MD

Allopathic & Osteopathic Physicians|Family Medicine · GARY, IN · NPI 1417942707

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 T Ross, MD received $182.71 in general payments during 2025 across 8 reported records.

AstraZeneca Pharmaceuticals LP accounted for 65.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

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

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 45 claims for Farxiga by this doctor in 2024.

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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Symbicort 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 33 claims for Jardiance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$182.71

8 reported records · 4 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 $118.6865.0%52025
Exact Sciences Corporation Unresolved — no canonical attribution shown $23.2312.7%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $23.0312.6%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $17.779.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$182.718

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 $99.42 4 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $23.23 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $23.03 1 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $19.26 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $17.77 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $17.77 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 45 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
45 20
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
12 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
33 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 Besylate420152
Atorvastatin CalciumAtorvastatin Calcium321116
Rosuvastatin CalciumRosuvastatin Calcium16154
Albuterol Sulfate HfaAlbuterol Sulfate14241
Metformin HclMetformin Hcl12844
Metoprolol SuccinateMetoprolol Succinate12740
Fluticasone PropionateFluticasone Propionate12548
HydrochlorothiazideHydrochlorothiazide12351
Pantoprazole SodiumPantoprazole Sodium9541
FurosemideFurosemide8942
Potassium ChloridePotassium Chloride8936
JanuviaSitagliptin Phosphate8223
Tamsulosin HclTamsulosin Hcl8232
Losartan PotassiumLosartan Potassium7630
Diclofenac Sodium ErDiclofenac Sodium7334
LisinoprilLisinopril7026
IbuprofenIbuprofen6625
Levothyroxine SodiumLevothyroxine Sodium6420
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6121
GabapentinGabapentin5725
SimvastatinSimvastatin5719
GlimepirideGlimepiride5617
CarvedilolCarvedilol5424
Metoprolol TartrateMetoprolol Tartrate5214
FarxigaDapagliflozin Propanediol4520
Hydralazine HclHydralazine Hcl4418
OzempicSemaglutide4215
Zolpidem TartrateZolpidem Tartrate42suppressed
AllopurinolAllopurinol4115
ClonazepamClonazepam41suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter4116
Pioglitazone HclPioglitazone Hcl4012
Tramadol HclTramadol Hcl4011
ClopidogrelClopidogrel Bisulfate3911
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3817
XareltoRivaroxaban3812
Meclizine HclMeclizine Hcl3716
ValsartanValsartan3711
LovastatinLovastatin35suppressed
OmeprazoleOmeprazole3518
Breo ElliptaFluticasone/Vilanterol3413
Klor-Con M20Potassium Chloride3414
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide3414
JardianceEmpagliflozin33suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril32suppressed
Escitalopram OxalateEscitalopram Oxalate3111
EliquisApixaban30suppressed
Labetalol HclLabetalol Hcl2911
MeloxicamMeloxicam2918
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid2813
Diclofenac SodiumDiclofenac Sodium27suppressed
Ventolin HfaAlbuterol Sulfate24suppressed
Alendronate SodiumAlendronate Sodium23suppressed
Montelukast SodiumMontelukast Sodium23suppressed
Sertraline HclSertraline Hcl23suppressed
Novolog FlexpenInsulin Aspart22suppressed
RybelsusSemaglutide22suppressed
FinasterideFinasteride21suppressed
Donepezil HclDonepezil Hcl20suppressed
FamotidineFamotidine20suppressed
Oxybutynin ChlorideOxybutynin Chloride20suppressed
TradjentaLinagliptin20suppressed
Memantine HclMemantine Hcl19suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim19suppressed
CilostazolCilostazol18suppressed
Fludrocortisone AcetateFludrocortisone Acetate18suppressed
LidocaineLidocaine18suppressed
Tolterodine Tartrate ErTolterodine Tartrate18suppressed
RisperidoneRisperidone17suppressed
Terazosin HclTerazosin Hcl17suppressed
GlipizideGlipizide16suppressed
NaproxenNaproxen16suppressed
SpironolactoneSpironolactone16suppressed
Candesartan CilexetilCandesartan Cilexetil15suppressed
IrbesartanIrbesartan15suppressed
Oxybutynin Chloride ErOxybutynin Chloride15suppressed
PrednisonePrednisone1514
Spiriva RespimatTiotropium Bromide15suppressed
AcyclovirAcyclovir14suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone14suppressed
HumalogInsulin Lispro14suppressed
Nifedipine ErNifedipine14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Glipizide ErGlipizide13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan12suppressed
AzithromycinAzithromycin1212
Candesartan-HydrochlorothiazidCandesartan/Hydrochlorothiazid12suppressed
EntrestoSacubitril/Valsartan12suppressed
Olmesartan MedoxomilOlmesartan Medoxomil12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
CephalexinCephalexin11suppressed
Clobetasol PropionateClobetasol Propionate11suppressed

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 $182.71 · 8 records AstraZeneca Pharmaceuticals LP AIRSUPRA, FARXIGA, MOUNJARO, REXULTI, The Cologuard Plus Collection Kit, ZEPBOUND 3
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