Healthcare provider profile · identity verified

Warren Marc Ross, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · ELLICOTT CITY, MD · NPI 1770568891

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 Warren Marc Ross, M.D. received $1,139.16 in general payments during 2025 across 53 reported records.

Amgen Inc. accounted for 17.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 31 associated products.

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

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 59 claims for Synthroid 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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 56 claims for Farxiga 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 90 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 90 claims for Jardiance 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 90 claims for Ozempic 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 48 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

$1,139.16

53 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
Amgen Inc. Unresolved — no canonical attribution shown $197.4217.3%112025
Lilly USA, LLC Unresolved — no canonical attribution shown $192.4616.9%92025
Novo Nordisk Inc Unresolved — no canonical attribution shown $103.629.1%52025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $102.739.0%42025
PFIZER INC. Unresolved — no canonical attribution shown $65.945.8%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $59.735.2%32025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $52.484.6%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $52.144.6%22025
Dexcom, Inc. Unresolved — no canonical attribution shown $51.804.5%22025
Inspire Medical Systems, Inc. Unresolved — no canonical attribution shown $44.153.9%22025
Antares Pharma, Inc. Unresolved — no canonical attribution shown $35.833.1%22025
TOLMAR, INC. Unresolved — no canonical attribution shown $35.673.1%22025
ABBVIE INC. Unresolved — no canonical attribution shown $30.472.7%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $28.732.5%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $28.302.5%12025
Abbott Laboratories Unresolved — no canonical attribution shown $19.971.8%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $19.201.7%12025
HARMONY BIOSCIENCES LLC Unresolved — no canonical attribution shown $18.521.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,121.4752
Education$17.691

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
EVENITY
Normalized: evenity
Biological Amgen Inc. $158.13 9 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $117.20 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $117.20 5 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $102.73 4 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $62.02 3 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $52.48 2 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $52.42 3 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $52.14 2 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $52.14 2 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $51.80 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $47.27 2 2025
Source payment records
INSPIRE
Normalized: inspire
Device Inspire Medical Systems, Inc. $44.15 2 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $41.54 2 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $39.65 2 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $39.65 2 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $39.29 2 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $39.29 2 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $36.15 2 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $36.15 2 2025
Source payment records
XYOSTED
Normalized: xyosted
Drug Antares Pharma, Inc. $35.83 2 2025
Source payment records
JATENZO
Normalized: jatenzo
Drug TOLMAR, INC. $35.67 2 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $35.37 2 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $30.47 1 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $28.73 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $26.29 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $26.29 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $26.29 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $24.36 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $19.97 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $19.20 1 2025
Source payment records
WAKIX
Normalized: wakix
Drug HARMONY BIOSCIENCES LLC $18.52 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 48 exact normalized Medicare Part D
FARXIGA
farxiga
2025 Farxiga 2024 56 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 90 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 90 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
59 20
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
56 12
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
90 30
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
90 30
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
90 15
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
48 19

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
Rosuvastatin CalciumRosuvastatin Calcium555169
Amlodipine BesylateAmlodipine Besylate359115
Atorvastatin CalciumAtorvastatin Calcium26378
Levothyroxine SodiumLevothyroxine Sodium25473
Olmesartan MedoxomilOlmesartan Medoxomil22161
TelmisartanTelmisartan16650
IndapamideIndapamide14651
Nebivolol HclNebivolol Hcl14449
EzetimibeEzetimibe12545
Tamsulosin HclTamsulosin Hcl11842
ValsartanValsartan10735
Metformin HclMetformin Hcl10233
SimvastatinSimvastatin10230
Candesartan CilexetilCandesartan Cilexetil9229
JardianceEmpagliflozin9030
OzempicSemaglutide9015
Metformin Hcl ErMetformin Hcl8527
FurosemideFurosemide8128
AllopurinolAllopurinol8024
Duloxetine HclDuloxetine Hcl7926
Pantoprazole SodiumPantoprazole Sodium6622
Metoprolol SuccinateMetoprolol Succinate6223
SynthroidLevothyroxine Sodium5920
FarxigaDapagliflozin Propanediol5612
LisinoprilLisinopril5520
SpironolactoneSpironolactone5519
CarvedilolCarvedilol5320
FinasterideFinasteride5319
FamotidineFamotidine5021
Liothyronine SodiumLiothyronine Sodium5019
EliquisApixaban4819
Potassium ChloridePotassium Chloride4715
Escitalopram OxalateEscitalopram Oxalate4617
SirolimusSirolimus4216
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide4213
GabapentinGabapentin4111
HydrochlorothiazideHydrochlorothiazide4115
Zolpidem TartrateZolpidem Tartrate3816
AlprazolamAlprazolam3514
Pravastatin SodiumPravastatin Sodium3511
AzithromycinAzithromycin3419
GlimepirideGlimepiride34suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide3411
ClopidogrelClopidogrel Bisulfate33suppressed
CelecoxibCelecoxib3112
Breo ElliptaFluticasone/Vilanterol29suppressed
FluconazoleFluconazole28suppressed
LorazepamLorazepam28suppressed
IrbesartanIrbesartan27suppressed
Losartan PotassiumLosartan Potassium27suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2719
OmeprazoleOmeprazole27suppressed
MeloxicamMeloxicam2611
Montelukast SodiumMontelukast Sodium26suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter26suppressed
Fluticasone PropionateFluticasone Propionate25suppressed
Metoprolol TartrateMetoprolol Tartrate25suppressed
Doxepin HclDoxepin Hcl22suppressed
Bupropion XlBupropion Hcl21suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
HydrocortisoneHydrocortisone20suppressed
Sertraline HclSertraline Hcl20suppressed
TestosteroneTestosterone20suppressed
Trazodone HclTrazodone Hcl2011
Cyclobenzaprine HclCyclobenzaprine Hcl19suppressed
Donepezil HclDonepezil Hcl19suppressed
EstradiolEstradiol19suppressed
FenofibrateFenofibrate19suppressed
PrednisonePrednisone19suppressed
Risedronate SodiumRisedronate Sodium17suppressed
Testosterone CypionateTestosterone Cypionate1711
Ciprofloxacin HclCiprofloxacin Hcl15suppressed
FenofibrateFenofibrate Nanocrystallized15suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15suppressed
Memantine HclMemantine Hcl15suppressed
ValacyclovirValacyclovir Hcl15suppressed
Citalopram HbrCitalopram Hydrobromide14suppressed
FenofibrateFenofibrate,micronized14suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip13suppressed
EplerenoneEplerenone13suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol13suppressed
Alendronate SodiumAlendronate Sodium12suppressed
LovastatinLovastatin12suppressed
Tramadol HclTramadol Hcl12suppressed
XareltoRivaroxaban12suppressed
ColchicineColchicine11suppressed
LansoprazoleLansoprazole11suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed
Metformin Er OsmoticMetformin 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 $1,139.16 · 53 records Amgen Inc. ABRYSVO, BREZTRI, CAPVAXIVE, COMIRNATY, Dexcom G6 Transmitter, ELIQUIS, EVENITY, FARXIGA, FREESTYLE LIBRE 3, GARDASIL 9, INSPIRE, JARDIANCE, JATENZO, KISUNLA, LEQVIO, MOUNJARO, NURTEC ODT, OTEZLA, Ozempic, PREVNAR 20, PROLIA, REPATHA, REXULTI, Rybelsus, TZIELD, The Cologuard Plus Collection Kit, UBRELVY, WAKIX, Wegovy, XYOSTED, ZEPBOUND 6
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