Healthcare provider profile · identity verified

Nathan Ritter, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · ROCHESTER, NY · NPI 1417095076

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 Nathan Ritter, MD received $774.24 in general payments during 2025 across 22 reported records.

Boston Scientific Corporation accounted for 26.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 14 associated products.

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

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 BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Brilinta 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 66 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 139 claims for Jardiance by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. 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 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 403 claims for Eliquis by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 76 claims for Entresto 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 403 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

$774.24

22 reported records · 9 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
Boston Scientific Corporation Unresolved — no canonical attribution shown $201.7326.1%32025
Amgen Inc. Unresolved — no canonical attribution shown $196.8025.4%52025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $134.1617.3%62025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $126.7416.4%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $33.584.3%22025
PFIZER INC. Unresolved — no canonical attribution shown $26.923.5%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.602.8%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $18.042.3%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $14.671.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$774.2422

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
WATCHMAN
Normalized: watchman
Device Boston Scientific Corporation $201.73 3 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $196.80 5 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $134.16 6 2025
Source payment records
AMVUTTRA
Normalized: amvuttra
Drug Alnylam Pharmaceuticals Inc. $97.85 1 2025
Source payment records
ONPATTRO
Normalized: onpattro
Drug Alnylam Pharmaceuticals Inc. $28.89 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $26.92 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $26.92 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $26.92 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $21.60 1 2025
Source payment records
ENTRESTO
Normalized: entresto
Drug Novartis Pharmaceuticals Corporation $21.00 1 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $20.11 1 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $18.04 1 2025
Source payment records
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $14.67 1 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $13.47 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 403 exact normalized Medicare Part D
ENTRESTO
entresto
2025 Entresto 2024 76 exact normalized Medicare Part D
FARXIGA
farxiga
2025 Farxiga 2024 66 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 139 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 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
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
66 15
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
139 51
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
403 119
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
76 23
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
403 119

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
Metoprolol SuccinateMetoprolol Succinate472173
Atorvastatin CalciumAtorvastatin Calcium407135
EliquisApixaban403119
SpironolactoneSpironolactone394134
Amlodipine BesylateAmlodipine Besylate23388
Rosuvastatin CalciumRosuvastatin Calcium21373
CarvedilolCarvedilol20866
FurosemideFurosemide20571
ClopidogrelClopidogrel Bisulfate19760
LisinoprilLisinopril17768
Metoprolol TartrateMetoprolol Tartrate16763
JardianceEmpagliflozin13951
TorsemideTorsemide9941
DigoxinDigoxin9427
EzetimibeEzetimibe9333
Losartan PotassiumLosartan Potassium9338
HydrochlorothiazideHydrochlorothiazide9235
Isosorbide Mononitrate ErIsosorbide Mononitrate9028
Warfarin SodiumWarfarin Sodium8424
EplerenoneEplerenone8331
Diltiazem 24hr Er (Cd)Diltiazem Hcl8231
IrbesartanIrbesartan7821
EntrestoSacubitril/Valsartan7623
XareltoRivaroxaban7020
NitroglycerinNitroglycerin6946
FarxigaDapagliflozin Propanediol6615
Hydralazine HclHydralazine Hcl5516
Amiodarone HclAmiodarone Hcl4918
Terazosin HclTerazosin Hcl4915
AtenololAtenolol4412
SimvastatinSimvastatin4416
Repatha SureclickEvolocumab4212
ValsartanValsartan3511
Potassium ChloridePotassium Chloride3212
Pravastatin SodiumPravastatin Sodium28suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl27suppressed
BrilintaTicagrelor26suppressed
OzempicSemaglutide25suppressed
DofetilideDofetilide24suppressed
Midodrine HclMidodrine Hcl23suppressed
ChlorthalidoneChlorthalidone21suppressed
Praluent PenAlirocumab21suppressed
AmoxicillinAmoxicillin2011
Dilt-XrDiltiazem Hcl19suppressed
Candesartan CilexetilCandesartan Cilexetil15suppressed
Felodipine ErFelodipine14suppressed
Ranolazine ErRanolazine14suppressed
VascepaIcosapent Ethyl14suppressed
Bisoprolol FumarateBisoprolol Fumarate13suppressed
Cartia XtDiltiazem Hcl13suppressed
MultaqDronedarone Hcl13suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril12suppressed
Prasugrel HclPrasugrel Hcl12suppressed
IndapamideIndapamide11suppressed
Labetalol HclLabetalol Hcl11suppressed
RamiprilRamipril11suppressed

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 $774.24 · 22 records Boston Scientific Corporation AMVUTTRA, CAMZYOS, ELIQUIS, ENTRESTO, FARXIGA, JARDIANCE, LEQVIO, NURTEC ODT, ONPATTRO, PAXLOVID, REPATHA, VERQUVO, WAINUA, WATCHMAN 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