Healthcare provider profile · identity verified

Nathan B Green, DO

Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology · LINCOLN, NE · NPI 1679563936

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 B Green, DO received $1,733.20 in general payments during 2025 across 92 reported records.

PFIZER INC. accounted for 14.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 59 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ibrance, Tagrisso, Venclexta.

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 VENCLEXTA as an associated drug or biological on 10417 records involving 4944 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Venclexta by this doctor in 2024.

ARRAY BIOPHARMA 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 IBRANCE as an associated drug or biological on 54 records involving 52 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Ibrance 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 TAGRISSO as an associated drug or biological on 5285 records involving 2776 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Tagrisso by this doctor in 2024.

Celgene 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 POMALYST as an associated drug or biological on 282 records involving 237 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Pomalyst by this doctor in 2024.

Genentech USA, 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 Venclexta as an associated drug or biological on 2896 records involving 2018 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Venclexta by this doctor in 2024.

Janssen Biotech, 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 XARELTO as an associated drug or biological on 24 records involving 23 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Xarelto 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 IBRANCE as an associated drug or biological on 11505 records involving 4934 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Ibrance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,733.20

92 reported records · 33 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
PFIZER INC. Unresolved — no canonical attribution shown $248.7914.3%172025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $216.8612.5%122025
ABBVIE INC. Unresolved — no canonical attribution shown $205.9611.9%102025
HISTOSONICS, INC. Unresolved — no canonical attribution shown $93.125.4%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $85.795.0%42025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $75.464.3%42025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $69.494.0%42025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $68.934.0%32025
Eisai Inc. Unresolved — no canonical attribution shown $65.313.8%42025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $50.862.9%32025
Genentech USA, Inc. Unresolved — no canonical attribution shown $46.642.7%22025
Genmab U.S., Inc. Unresolved — no canonical attribution shown $46.092.7%22025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $44.802.6%32025
Ferring Pharmaceuticals Inc. Unresolved — no canonical attribution shown $42.202.4%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $40.512.3%22025
Stemline Therapeutics Inc. Unresolved — no canonical attribution shown $29.251.7%22025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $26.671.5%12025
Kite Pharma, Inc. Unresolved — no canonical attribution shown $25.831.5%12025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $24.881.4%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $20.841.2%12025
Aveo Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.001.1%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $19.331.1%12025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $18.881.1%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $18.041.0%12025
TAIHO ONCOLOGY, INC. Unresolved — no canonical attribution shown $16.981.0%12025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $16.430.9%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $16.260.9%12025
Exelixis Inc. Unresolved — no canonical attribution shown $14.600.8%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $14.490.8%12025
Karyopharm Therapeutics Inc. Unresolved — no canonical attribution shown $14.090.8%12025
Celgene Corporation Unresolved — no canonical attribution shown $13.870.8%12025
PUMA BIOTECHNOLOGY, INC. Unresolved — no canonical attribution shown $13.670.8%12025
Iovance Biotherapeutics, Inc. Unresolved — no canonical attribution shown $8.280.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,688.2090
Education$45.002

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
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $216.86 12 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug ARRAY BIOPHARMA INC, PFIZER INC. $202.12 12 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $157.32 9 2025
Source payment records
EPKINLY
Normalized: epkinly
Drug ABBVIE INC., Genmab U.S., Inc. $153.49 6 2025
Source payment records
ENHERTU
Normalized: enhertu
Biological, Drug AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. $96.08 4 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $65.78 3 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $65.31 4 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $51.68 3 2025
Source payment records
OPDUALAG
Normalized: opdualag
Drug E.R. Squibb & Sons, L.L.C. $51.10 3 2025
Source payment records
WELIREG
Normalized: welireg
Drug Merck Sharp & Dohme LLC $50.04 3 2025
Source payment records
Polivy
Normalized: polivy
Biological Genentech USA, Inc. $46.64 2 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $44.80 3 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $44.80 3 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Drug ABBVIE INC. $44.75 2 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological Merck Sharp & Dohme LLC $44.46 3 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $42.23 2 2025
Source payment records
ADSTILADRIN
Normalized: adstiladrin
Biological Ferring Pharmaceuticals Inc. $42.20 2 2025
Source payment records
TAGRISSO
Normalized: tagrisso
Drug AstraZeneca Pharmaceuticals LP $36.65 2 2025
Source payment records
SCEMBLIX
Normalized: scemblix
Drug Novartis Pharmaceuticals Corporation $35.41 2 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC., Sumitomo Pharma America, Inc. $30.23 2 2025
Source payment records
ADCETRIS
Normalized: adcetris
Biological PFIZER INC. $30.20 3 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $30.20 3 2025
Source payment records
Orserdu
Normalized: orserdu
Drug Stemline Therapeutics Inc. $29.25 2 2025
Source payment records
ZEPZELCA
Normalized: zepzelca
Drug JAZZ PHARMACEUTICALS INC. $26.67 1 2025
Source payment records
Yescarta
Normalized: yescarta
Drug Kite Pharma, Inc. $25.83 1 2025
Source payment records
Onivyde
Normalized: onivyde
Drug Ipsen Biopharmaceuticals, Inc $24.88 1 2025
Source payment records
TEVIMBRA
Normalized: tevimbra
Drug BeOne Medicines USA, Inc. $23.78 1 2025
Source payment records
ELAHERE
Normalized: elahere
Drug ABBVIE INC. $22.64 2 2025
Source payment records
PADCEV
Normalized: padcev
Biological PFIZER INC. $22.63 2 2025
Source payment records
DATROWAY
Normalized: datroway
Drug Daiichi Sankyo Inc. $21.99 1 2025
Source payment records
BOSULIF
Normalized: bosulif
Drug PFIZER INC. $21.84 2 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $21.24 1 2025
Source payment records
SARCLISA
Normalized: sarclisa
Biological GENZYME CORPORATION $20.84 1 2025
Source payment records
FOTIVDA
Normalized: fotivda
Drug Aveo Pharmaceuticals, Inc. $20.00 1 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $19.33 1 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $19.27 1 2025
Source payment records
TALVEY
Normalized: talvey
Biological Janssen Biotech, Inc. $19.27 1 2025
Source payment records
TECVAYLI
Normalized: tecvayli
Biological Janssen Biotech, Inc. $19.27 1 2025
Source payment records
ICLUSIG
Normalized: iclusig
Drug Takeda Pharmaceuticals U.S.A., Inc. $18.88 1 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $18.39 1 2025
Source payment records
JEMPERLI
Normalized: jemperli
Biological GlaxoSmithKline, LLC. $18.04 1 2025
Source payment records
OJJAARA
Normalized: ojjaara
Drug GlaxoSmithKline, LLC. $18.04 1 2025
Source payment records
INQOVI
Normalized: inqovi
Drug TAIHO ONCOLOGY, INC. $16.98 1 2025
Source payment records
LONSURF
Normalized: lonsurf
Drug TAIHO ONCOLOGY, INC. $16.98 1 2025
Source payment records
Vyloy
Normalized: vyloy
Drug Astellas Pharma US Inc $16.26 1 2025
Source payment records
KISQALI
Normalized: kisqali
Drug Novartis Pharmaceuticals Corporation $15.45 1 2025
Source payment records
CABOMETYX
Normalized: cabometyx
Drug Exelixis Inc. $14.60 1 2025
Source payment records
JAYPIRCA
Normalized: jaypirca
Drug Lilly USA, LLC $14.49 1 2025
Source payment records
VERZENIO
Normalized: verzenio
Drug Lilly USA, LLC $14.49 1 2025
Source payment records
XPOVIO
Normalized: xpovio
Drug Karyopharm Therapeutics Inc. $14.09 1 2025
Source payment records
REBLOZYL
Normalized: reblozyl
Biological Celgene Corporation $13.87 1 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $13.80 1 2025
Source payment records
XTANDI
Normalized: xtandi
Drug PFIZER INC. $13.80 1 2025
Source payment records
TIVDAK
Normalized: tivdak
Biological PFIZER INC. $13.70 1 2025
Source payment records
NERLYNX
Normalized: nerlynx
Drug PUMA BIOTECHNOLOGY, INC. $13.67 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $11.14 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $11.14 1 2025
Source payment records
EMRELIS
Normalized: emrelis
Drug ABBVIE INC. $9.22 1 2025
Source payment records
Amtagvi
Normalized: amtagvi
Drug Iovance Biotherapeutics, Inc. $8.28 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
IBRANCE
ibrance
2025 Ibrance 2024 21
Beneficiary count suppressed
exact normalized Medicare Part D
TAGRISSO
tagrisso
2025 Tagrisso 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
VENCLEXTA
venclexta
2025 Venclexta 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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 VENCLEXTA
open payments reported associated product
CMS Open Payments — General Payments
10417 supporting records · 4944 recipient NPIs · example record 1201353144
Venclexta · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
ARRAY BIOPHARMA INC
Exact reporting entity; no affiliate inference
2025 IBRANCE
open payments reported associated product
CMS Open Payments — General Payments
54 supporting records · 52 recipient NPIs · example record 1228804288
Ibrance · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TAGRISSO
open payments reported associated product
CMS Open Payments — General Payments
5285 supporting records · 2776 recipient NPIs · example record 1206131546
Tagrisso · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Celgene Corporation
Exact reporting entity; no affiliate inference
2025 POMALYST
open payments reported associated product
CMS Open Payments — General Payments
282 supporting records · 237 recipient NPIs · example record 1184378437
Pomalyst · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Genentech USA, Inc.
Exact reporting entity; no affiliate inference
2025 Venclexta
open payments reported associated product
CMS Open Payments — General Payments
2896 supporting records · 2018 recipient NPIs · example record 1211488584
Venclexta · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 XARELTO
open payments reported associated product
CMS Open Payments — General Payments
24 supporting records · 23 recipient NPIs · example record 1174259978
Xarelto · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 IBRANCE
open payments reported associated product
CMS Open Payments — General Payments
11505 supporting records · 4934 recipient NPIs · example record 1228794164
Ibrance · 2024
Exact normalized brand match · 1 Part D row
21 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
AnastrozoleAnastrozole31268
Tamoxifen CitrateTamoxifen Citrate10121
LetrozoleLetrozole7616
Ondansetron HclOndansetron Hcl6038
Prochlorperazine MaleateProchlorperazine Maleate4431
Levothyroxine SodiumLevothyroxine Sodium35suppressed
VenclextaVenetoclax35suppressed
Potassium ChloridePotassium Chloride3312
AcyclovirAcyclovir25suppressed
Amlodipine BesylateAmlodipine Besylate24suppressed
RevlimidLenalidomide22suppressed
XareltoRivaroxaban22suppressed
Citalopram HbrCitalopram Hydrobromide21suppressed
IbrancePalbociclib21suppressed
GabapentinGabapentin18suppressed
Alendronate SodiumAlendronate Sodium17suppressed
DexamethasoneDexamethasone1615
HydroxyureaHydroxyurea16suppressed
FluconazoleFluconazole14suppressed
Abiraterone AcetateAbiraterone Acetate13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
OmeprazoleOmeprazole13suppressed
PrednisonePrednisone13suppressed
EverolimusEverolimus11suppressed
FurosemideFurosemide11suppressed
PomalystPomalidomide11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim11suppressed
TagrissoOsimertinib Mesylate11suppressed

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 $1,733.20 · 92 records PFIZER INC. ADCETRIS, ADSTILADRIN, Amtagvi, BOSULIF, BRAFTOVI, BRUKINSA, CABOMETYX, DARZALEX, DATROWAY, ELAHERE, ELIQUIS, ELREXFIO, EMRELIS, ENHERTU, EPKINLY, FOTIVDA, IBRANCE, ICLUSIG, IMBRUVICA, INQOVI, JAYPIRCA, JEMPERLI, KEYTRUDA, KEYTRUDA QLEX, KISQALI, LONSURF, LYNPARZA, Lenvima, MEKTOVI, NERLYNX, OJJAARA, OPDIVO, OPDUALAG, ORGOVYX, Onivyde, Orserdu, PADCEV, PAXLOVID, Polivy, REBLOZYL, RYBREVANT, SARCLISA, SCEMBLIX, TAGRISSO, TALVEY, TALZENNA, TECVAYLI, TEVIMBRA, TIVDAK, TUKYSA, Trodelvy, VENCLEXTA, VERZENIO, Vyloy, WELIREG, XPOVIO, XTANDI, Yescarta, ZEPZELCA 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