Healthcare provider profile · identity verified

Atul T. Roy, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · MERCED, CA · NPI 1467496505

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 Atul T. Roy, M.D. received $366.73 in general payments during 2025 across 12 reported records.

Novo Nordisk Inc accounted for 40.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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

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 48 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

$366.73

12 reported records · 6 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 $147.9240.3%62025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $124.2333.9%22025
Vantive US Healthcare LLC Unresolved — no canonical attribution shown $38.7010.6%12025
AKEBIA THERAPEUTICS INC Unresolved — no canonical attribution shown $22.436.1%12025
Apellis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.424.8%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $16.034.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$366.7312

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $147.92 6 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $109.01 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $51.45 5 2025
Source payment records
Renal - PD
Normalized: renal pd
Device Vantive US Healthcare LLC $38.70 1 2025
Source payment records
Vafseo
Normalized: vafseo
Drug AKEBIA THERAPEUTICS INC $22.43 1 2025
Source payment records
Empaveli
Normalized: empaveli
Drug Apellis Pharmaceuticals, Inc. $17.42 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $15.22 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
Ozempic
ozempic
2025 Ozempic 2024 48 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
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
48 16

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
XphozahTenapanor Hcl20031
Losartan PotassiumLosartan Potassium19468
JardianceEmpagliflozin18571
FarxigaDapagliflozin Propanediol18057
Amlodipine BesylateAmlodipine Besylate13852
ProsolParenteral Amino Acid 20% No.1123suppressed
LisinoprilLisinopril9439
Hydralazine HclHydralazine Hcl8732
Sevelamer CarbonateSevelamer Carbonate8534
Calcium AcetateCalcium Acetate7232
Atorvastatin CalciumAtorvastatin Calcium6630
FurosemideFurosemide5921
CalcitriolCalcitriol5319
CarvedilolCarvedilol5225
KerendiaFinerenone5112
OzempicSemaglutide4816
Cinacalcet HclCinacalcet Hcl4615
Tamsulosin HclTamsulosin Hcl4415
TrulicityDulaglutide4411
BumetanideBumetanide4319
AllopurinolAllopurinol4011
LokelmaSodium Zirconium Cyclosilicate2814
Pioglitazone HclPioglitazone Hcl27suppressed
Levothyroxine SodiumLevothyroxine Sodium2611
Potassium Citrate ErPotassium Citrate25suppressed
Metoprolol TartrateMetoprolol Tartrate24suppressed
Sertraline HclSertraline Hcl24suppressed
Vitamin D2Ergocalciferol (Vitamin D2)2111
FamotidineFamotidine20suppressed
Metformin HclMetformin Hcl20suppressed
Nifedipine ErNifedipine19suppressed
SpironolactoneSpironolactone19suppressed
TacrolimusTacrolimus19suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
Potassium ChloridePotassium Chloride16suppressed
Terazosin HclTerazosin Hcl16suppressed
SimvastatinSimvastatin15suppressed
GabapentinGabapentin14suppressed
JanuviaSitagliptin Phosphate13suppressed
RayaldeeCalcifediol13suppressed
Metoprolol SuccinateMetoprolol Succinate12suppressed
VelphoroSucroferric Oxyhydroxide12suppressed
CholestyramineCholestyramine (With Sugar)11suppressed
HydrochlorothiazideHydrochlorothiazide11suppressed

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 $366.73 · 12 records Novo Nordisk Inc AREXVY, Empaveli, Ozempic, Renal - PD, Rybelsus, SHINGRIX, Vafseo 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