Healthcare provider profile · identity verified

Steven D Nathan, MD

Allopathic & Osteopathic Physicians|Internal Medicine · FALLS CHURCH, VA · NPI 1891724134

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 Steven D Nathan, MD received $240,519.64 in general payments during 2025 across 248 reported records.

Boehringer Ingelheim Pharmaceuticals, Inc. accounted for 47.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 23 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Adempas, Ofev, Opsumit.

Actelion Pharmaceuticals US, 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 OPSUMIT as an associated drug or biological on 18955 records involving 8899 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Opsumit by this doctor in 2024.

Bayer Healthcare 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 Adempas as an associated drug or biological on 3385 records involving 1868 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Adempas by this doctor in 2024.

Boehringer Ingelheim International GmbH reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported OFEV as an associated drug or biological on 34 records involving 12 distinct recipient NPIs. Public Medicare Part D data also shows 199 claims for Ofev 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 OFEV as an associated drug or biological on 14236 records involving 6873 distinct recipient NPIs. Public Medicare Part D data also shows 199 claims for Ofev 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 11 claims for Eliquis by this doctor in 2024.

Merck Sharp & Dohme 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 Adempas as an associated drug or biological on 14 records involving 2 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Adempas by this doctor in 2024.

Takeda Pharmaceuticals U.S.A., 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 GLASSIA as an associated drug or biological on 7881 records involving 3215 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Glassia by this doctor in 2024.

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

Payment overview · 2025

General Payments

$240,519.64

248 reported records · 19 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
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $113,280.1447.1%632025
United Therapeutics Corporation Unresolved — no canonical attribution shown $104,656.4943.5%1342025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $10,706.004.5%52025
ABBVIE INC. Unresolved — no canonical attribution shown $5,848.742.4%102025
Boehringer Ingelheim International GmbH Unresolved — no canonical attribution shown $4,891.202.0%52025
ARGENX US, INC. Unresolved — no canonical attribution shown $337.500.1%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $174.300.1%72025
Insmed, Inc. Unresolved — no canonical attribution shown $145.660.1%72025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $124.210.1%12025
Actelion Pharmaceuticals US, Inc. Unresolved — no canonical attribution shown $118.570.1%42025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $59.660.0%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $33.940.0%22025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $33.420.0%12025
Paratek Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.670.0%12025
Verona Pharma, Inc. Unresolved — no canonical attribution shown $20.870.0%12025
Baxter Healthcare Unresolved — no canonical attribution shown $19.240.0%12025
Vifor Pharma, Inc. Unresolved — no canonical attribution shown $17.230.0%12025
Invivyd Inc Unresolved — no canonical attribution shown $14.690.0%12025
Melinta Therapeutics, LLC Unresolved — no canonical attribution shown $14.110.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$132,851.0032
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$81,670.0020
Travel and Lodging$20,219.0770
Food and Beverage$5,779.57126

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
TYVASO
Normalized: tyvaso
Drug United Therapeutics Corporation $61,100.92 70 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $25,094.16 20 2025
Source payment records
REMODULIN
Normalized: remodulin
Drug United Therapeutics Corporation $9,601.10 21 2025
Source payment records
Orenitram
Normalized: orenitram
Drug United Therapeutics Corporation $212.16 7 2025
Source payment records
Adempas
Normalized: adempas
Drug Bayer Healthcare Pharmaceuticals Inc. $174.30 7 2025
Source payment records
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $145.66 7 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $124.21 1 2025
Source payment records
UPTRAVI
Normalized: uptravi
Drug Actelion Pharmaceuticals US, Inc. $118.57 4 2025
Source payment records
OPSYNVI
Normalized: opsynvi
Drug Actelion Pharmaceuticals US, Inc. $87.70 3 2025
Source payment records
EMBLAVEO
Normalized: emblaveo
Drug ABBVIE INC. $73.74 6 2025
Source payment records
LIVTENCITY
Normalized: livtencity
Drug Takeda Pharmaceuticals U.S.A., Inc. $59.66 2 2025
Source payment records
AVYCAZ
Normalized: avycaz
Drug ABBVIE INC. $48.17 5 2025
Source payment records
WINREVAIR
Normalized: winrevair
Biological Merck Sharp & Dohme LLC $33.94 2 2025
Source payment records
Cresemba
Normalized: cresemba
Drug Astellas Pharma US Inc $33.42 1 2025
Source payment records
OPSUMIT
Normalized: opsumit
Drug Actelion Pharmaceuticals US, Inc. $30.87 1 2025
Source payment records
NUZYRA
Normalized: nuzyra
Drug Paratek Pharmaceuticals, Inc. $23.67 1 2025
Source payment records
Ohtuvayre
Normalized: ohtuvayre
Drug Verona Pharma, Inc. $20.87 1 2025
Source payment records
TEFLARO
Normalized: teflaro
Drug ABBVIE INC. $19.98 3 2025
Source payment records
Hillrom - Monarch Airway Clearance System
Normalized: hillrom monarch airway clearance system
Device Baxter Healthcare $19.24 1 2025
Source payment records
Brinsupri
Normalized: brinsupri
Drug Insmed, Inc. $18.84 1 2025
Source payment records
Zemaira
Normalized: zemaira
Biological Vifor Pharma, Inc. $17.23 1 2025
Source payment records
PEMGARDA
Normalized: pemgarda
Biological Invivyd Inc $14.69 1 2025
Source payment records
Rezzayo
Normalized: rezzayo
Drug Melinta Therapeutics, LLC $14.11 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
Adempas
adempas
2025 Adempas 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
OFEV
ofev
2025 Ofev 2024 199 exact normalized Medicare Part D
OPSUMIT
opsumit
2025 Opsumit 2024 35
Beneficiary count suppressed
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
Actelion Pharmaceuticals US, Inc.
Exact reporting entity; no affiliate inference
2025 OPSUMIT
open payments reported associated product
CMS Open Payments — General Payments
18955 supporting records · 8899 recipient NPIs · example record 1174163978
Opsumit · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Adempas
open payments reported associated product
CMS Open Payments — General Payments
3385 supporting records · 1868 recipient NPIs · example record 1225434673
Adempas · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Boehringer Ingelheim International GmbH
Exact reporting entity; no affiliate inference
2025 OFEV
open payments reported associated product
CMS Open Payments — General Payments
34 supporting records · 12 recipient NPIs · example record 1215867378
Ofev · 2024
Exact normalized brand match · 1 Part D row
199 28
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 OFEV
open payments reported associated product
CMS Open Payments — General Payments
14236 supporting records · 6873 recipient NPIs · example record 1221811762
Ofev · 2024
Exact normalized brand match · 1 Part D row
199 28
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
11 suppressed by CMS
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 Adempas
open payments reported associated product
CMS Open Payments — General Payments
14 supporting records · 2 recipient NPIs · example record 1237996458
Adempas · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Takeda Pharmaceuticals U.S.A., Inc.
Exact reporting entity; no affiliate inference
2025 GLASSIA
open payments reported associated product
CMS Open Payments — General Payments
7881 supporting records · 3215 recipient NPIs · example record 1223616286
Glassia · 2024
Exact normalized brand match · 1 Part D row
11 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
OfevNintedanib Esylate19928
PrednisonePrednisone6414
PirfenidonePirfenidone45suppressed
Tyvaso DpiTreprostinil37suppressed
OpsumitMacitentan35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate26suppressed
FurosemideFurosemide21suppressed
Mycophenolate MofetilMycophenolate Mofetil20suppressed
Fluticasone PropionateFluticasone Propionate18suppressed
TadalafilTadalafil15suppressed
Midodrine HclMidodrine Hcl13suppressed
AdempasRiociguat12suppressed
LetairisAmbrisentan12suppressed
AzithromycinAzithromycin11suppressed
Breo ElliptaFluticasone/Vilanterol11suppressed
EliquisApixaban11suppressed
GlassiaAlpha-1-Proteinase Inhibitor11suppressed
OmeprazoleOmeprazole11suppressed
Spiriva HandihalerTiotropium Bromide11suppressed

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 $240,519.64 · 248 records Boehringer Ingelheim Pharmaceuticals, Inc. AVYCAZ, Adempas, Arikayce, Brinsupri, Cresemba, EMBLAVEO, Hillrom - Monarch Airway Clearance System, LIVTENCITY, NUCALA, NUZYRA, OFEV, OPSUMIT, OPSYNVI, Ohtuvayre, Orenitram, PEMGARDA, REMODULIN, Rezzayo, TEFLARO, TYVASO, UPTRAVI, WINREVAIR, Zemaira 7
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