Healthcare provider profile · identity verified

Keith Thomas Diaz, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease · STATEN ISLAND, NY · NPI 1073771556

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 Keith Thomas Diaz, M.D. received $843.55 in general payments during 2025 across 46 reported records.

Regeneron Healthcare Solutions, Inc. accounted for 21.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 16 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Tezspire, Trelegy Ellipta.

Amgen 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 TEZSPIRE as an associated drug or biological on 22824 records involving 7320 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Tezspire 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 BEVESPI AEROSPHERE as an associated drug or biological on 763 records involving 473 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Bevespi Aerosphere 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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Symbicort 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 TEZSPIRE as an associated drug or biological on 33983 records involving 10291 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Tezspire by this doctor in 2024.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 236 claims for Trelegy Ellipta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$843.55

46 reported records · 12 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
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $177.9121.1%62025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $163.6019.4%82025
Insmed, Inc. Unresolved — no canonical attribution shown $152.5718.1%162025
GENZYME CORPORATION Unresolved — no canonical attribution shown $98.3811.7%32025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $55.886.6%32025
Actelion Pharmaceuticals US, Inc. Unresolved — no canonical attribution shown $50.566.0%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $46.995.6%22025
Philips North America LLC Unresolved — no canonical attribution shown $36.764.4%22025
Vifor Pharma, Inc. Unresolved — no canonical attribution shown $16.161.9%12025
Viatris Specialty LLC Unresolved — no canonical attribution shown $15.461.8%12025
Amgen Inc. Unresolved — no canonical attribution shown $15.321.8%12025
ABBVIE INC. Unresolved — no canonical attribution shown $13.961.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$753.4945
Education$90.061

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
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $276.29 9 2025
Source payment records
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $152.57 16 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc., AstraZeneca Pharmaceuticals LP $104.39 5 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $54.22 3 2025
Source payment records
OPSUMIT
Normalized: opsumit
Drug Actelion Pharmaceuticals US, Inc. $50.56 2 2025
Source payment records
Vest Therapy Und
Normalized: vest therapy und
Device Philips North America LLC $36.76 2 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $33.74 2 2025
Source payment records
Brinsupri
Normalized: brinsupri
Drug Insmed, Inc. $33.51 3 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $24.01 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $22.98 1 2025
Source payment records
JASCAYD
Normalized: jascayd
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $22.14 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $20.31 1 2025
Source payment records
Zemaira
Normalized: zemaira
Biological Vifor Pharma, Inc. $16.16 1 2025
Source payment records
YUPELRI
Normalized: yupelri
Drug Viatris Specialty LLC $15.46 1 2025
Source payment records
AVYCAZ
Normalized: avycaz
Drug ABBVIE INC. $13.96 1 2025
Source payment records
EMBLAVEO
Normalized: emblaveo
Drug ABBVIE INC. $13.96 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
TEZSPIRE
tezspire
2025 Tezspire 2024 22
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 236 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
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 TEZSPIRE
open payments reported associated product
CMS Open Payments — General Payments
22824 supporting records · 7320 recipient NPIs · example record 1226871881
Tezspire · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BEVESPI AEROSPHERE
open payments reported associated product
CMS Open Payments — General Payments
763 supporting records · 473 recipient NPIs · example record 1206131384
Bevespi Aerosphere · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TEZSPIRE
open payments reported associated product
CMS Open Payments — General Payments
33983 supporting records · 10291 recipient NPIs · example record 1206131392
Tezspire · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
236 48

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
Albuterol Sulfate HfaAlbuterol Sulfate34279
Trelegy ElliptaFluticasone/Umeclidin/Vilanter23648
Breztri AerosphereBudesonide/Glycopyr/Formoterol11531
PrednisonePrednisone10938
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr9622
Breo ElliptaFluticasone/Vilanterol8624
Montelukast SodiumMontelukast Sodium8322
Fluticasone-SalmeterolFluticasone Propion/Salmeterol3814
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate3311
Wixela InhubFluticasone Propion/Salmeterol25suppressed
AzithromycinAzithromycin2312
TezspireTezepelumab-Ekko22suppressed
Varenicline TartrateVarenicline Tartrate22suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl21suppressed
Combivent RespimatIpratropium/Albuterol Sulfate19suppressed
Incruse ElliptaUmeclidinium Bromide17suppressed
Pantoprazole SodiumPantoprazole Sodium17suppressed
Azelastine HclAzelastine Hcl16suppressed
Bevespi AerosphereGlycopyrrolate/Formoterol Fum16suppressed
CefdinirCefdinir16suppressed
Fluticasone PropionateFluticasone Propionate16suppressed
RoflumilastRoflumilast16suppressed
SymbicortBudesonide/Formoterol Fumarate16suppressed
Doxycycline HyclateDoxycycline Hyclate1513
Ventolin HfaAlbuterol Sulfate15suppressed
Arnuity ElliptaFluticasone Furoate14suppressed
OmeprazoleOmeprazole13suppressed
Advair HfaFluticasone Propion/Salmeterol11suppressed
DuleraMometasone/Formoterol11suppressed
Ipratropium BromideIpratropium 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 $843.55 · 46 records Regeneron Healthcare Solutions, Inc. AIRSUPRA, AVYCAZ, Arikayce, BREZTRI, Brinsupri, DUPIXENT, EMBLAVEO, JASCAYD, OFEV, OPSUMIT, SHINGRIX, TEZSPIRE, TRELEGY ELLIPTA, Vest Therapy Und, YUPELRI, Zemaira 5
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