Healthcare provider profile · identity verified

Ralph Cahaly, M.D.

Allopathic & Osteopathic Physicians|Allergy & Immunology|Allergy · MILFORD, MA · NPI 1790778553

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 Ralph Cahaly, M.D. received $5,127.13 in general payments during 2025 across 207 reported records.

AstraZeneca Pharmaceuticals LP accounted for 19.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 45 associated products.

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

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 25 claims for Trelegy Ellipta 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 XOLAIR as an associated drug or biological on 5293 records involving 2861 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Xolair 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 TAKHZYRO as an associated drug or biological on 3355 records involving 1604 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Takhzyro by this doctor in 2024.

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

Payment overview · 2025

General Payments

$5,127.13

207 reported records · 25 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $1,015.8319.8%352025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $609.3711.9%202025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $518.8810.1%282025
CSL Behring Unresolved — no canonical attribution shown $298.455.8%162025
Grifols USA, LLC Unresolved — no canonical attribution shown $271.425.3%132025
BioCryst US Sales Co., LLC Unresolved — no canonical attribution shown $262.805.1%72025
Pharming Healthcare, Inc. Unresolved — no canonical attribution shown $249.874.9%132025
GENZYME CORPORATION Unresolved — no canonical attribution shown $228.304.5%72025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $219.254.3%72025
PFIZER INC. Unresolved — no canonical attribution shown $202.354.0%132025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $193.833.8%72025
ARS Pharmaceuticals Operations, Inc. Unresolved — no canonical attribution shown $164.423.2%72025
Amgen Inc. Unresolved — no canonical attribution shown $150.582.9%72025
LEO Pharma Inc. Unresolved — no canonical attribution shown $133.532.6%12025
Blueprint Medicines Corporation Unresolved — no canonical attribution shown $112.292.2%42025
GC Biopharma USA, Inc. Unresolved — no canonical attribution shown $94.551.8%42025
Galderma Laboratories, L.P. Unresolved — no canonical attribution shown $89.971.8%42025
Kedrion Biopharma, Inc. Unresolved — no canonical attribution shown $59.091.1%32025
Ionis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $57.731.1%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $47.880.9%22025
Pulmonx Corporation Unresolved — no canonical attribution shown $33.090.7%12025
Invivyd Inc Unresolved — no canonical attribution shown $32.250.6%12025
Cycle Pharmaceuticals Inc Unresolved — no canonical attribution shown $31.790.6%22025
Incyte Corporation Unresolved — no canonical attribution shown $26.430.5%12025
Optinose US, Inc. Unresolved — no canonical attribution shown $23.180.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$4,997.47204
Education$129.663

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. $731.45 24 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc., AstraZeneca Pharmaceuticals LP $612.03 18 2025
Source payment records
FASENRA
Normalized: fasenra
Biological AstraZeneca Pharmaceuticals LP $363.18 11 2025
Source payment records
ORLADEYO
Normalized: orladeyo
Drug BioCryst US Sales Co., LLC $262.80 7 2025
Source payment records
RUCONEST
Normalized: ruconest
Biological Pharming Healthcare, Inc. $249.87 13 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $240.46 13 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $236.90 10 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $210.44 4 2025
Source payment records
Prolastin-C Liquid
Normalized: prolastin c liquid
Biological Grifols USA, LLC $196.41 8 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Biological, Drug Blueprint Medicines Corporation, GENZYME CORPORATION $187.03 6 2025
Source payment records
Rhapsido
Normalized: rhapsido
Drug Novartis Pharmaceuticals Corporation $174.56 12 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $169.86 6 2025
Source payment records
NEFFY
Normalized: neffy
Drug ARS Pharmaceuticals Operations, Inc. $164.42 7 2025
Source payment records
XOLAIR
Normalized: xolair
Drug Novartis Pharmaceuticals Corporation $133.78 3 2025
Source payment records
CUTAQUIG
Normalized: cutaquig
Biological PFIZER INC. $113.10 9 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Drug PFIZER INC. $113.10 9 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $113.10 9 2025
Source payment records
TAKHZYRO
Normalized: takhzyro
Biological Takeda Pharmaceuticals U.S.A., Inc. $112.70 2 2025
Source payment records
ALYGLO
Normalized: alyglo
Drug GC Biopharma USA, Inc. $94.55 4 2025
Source payment records
NEMLUVIO
Normalized: nemluvio
Drug Galderma Laboratories, L.P. $89.97 4 2025
Source payment records
CIBINQO
Normalized: cibinqo
Drug PFIZER INC. $89.25 4 2025
Source payment records
EUCRISA
Normalized: eucrisa
Drug PFIZER INC. $89.25 4 2025
Source payment records
Xembify
Normalized: xembify
Biological Grifols USA, LLC $75.01 5 2025
Source payment records
CUVITRU
Normalized: cuvitru
Biological Takeda Pharmaceuticals U.S.A., Inc. $61.70 3 2025
Source payment records
Albuked
Normalized: albuked
Biological Kedrion Biopharma, Inc. $59.09 3 2025
Source payment records
GAMMAKED
Normalized: gammaked
Biological Kedrion Biopharma, Inc. $59.09 3 2025
Source payment records
KEDRAB
Normalized: kedrab
Biological Kedrion Biopharma, Inc. $59.09 3 2025
Source payment records
KOATE
Normalized: koate
Biological Kedrion Biopharma, Inc. $59.09 3 2025
Source payment records
RhoGAM Ultra-Filtered PLUS
Normalized: rhogam ultra filtered plus
Biological Kedrion Biopharma, Inc. $59.09 3 2025
Source payment records
EBGLYSS
Normalized: ebglyss
Drug Lilly USA, LLC $47.88 2 2025
Source payment records
EOHILIA
Normalized: eohilia
Drug Takeda Pharmaceuticals U.S.A., Inc. $44.85 2 2025
Source payment records
Andembry
Normalized: andembry
Biological CSL Behring $35.41 2 2025
Source payment records
CHARTIS CATHETER
Normalized: chartis catheter
Device Pulmonx Corporation $33.09 1 2025
Source payment records
PULMONX CHARTIS TABLET CONSOLE
Normalized: pulmonx chartis tablet console
Device Pulmonx Corporation $33.09 1 2025
Source payment records
ZEPHYR DELIVERY CATHETER
Normalized: zephyr delivery catheter
Device Pulmonx Corporation $33.09 1 2025
Source payment records
ZEPHYR ENDOBRONCHIAL VALVE
Normalized: zephyr endobronchial valve
Device Pulmonx Corporation $33.09 1 2025
Source payment records
PEMGARDA
Normalized: pemgarda
Biological Invivyd Inc $32.25 1 2025
Source payment records
Sajazir
Normalized: sajazir
Drug Cycle Pharmaceuticals Inc $31.79 2 2025
Source payment records
DONIDALORSEN
Normalized: donidalorsen
Drug Ionis Pharmaceuticals, Inc. $30.16 1 2025
Source payment records
OPZELURA
Normalized: opzelura
Drug Incyte Corporation $26.43 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $23.97 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $23.97 1 2025
Source payment records
Xhance
Normalized: xhance
Drug Optinose US, Inc. $23.18 1 2025
Source payment records
Haegarda
Normalized: haegarda
Biological CSL Behring $22.58 1 2025
Source payment records
LITFULO
Normalized: litfulo
Drug PFIZER INC. $18.28 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
TAKHZYRO
takhzyro
2025 Takhzyro 2024 15
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 25
Beneficiary count suppressed
exact normalized Medicare Part D
XOLAIR
xolair
2025 Xolair 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
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
25 suppressed by CMS
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 XOLAIR
open payments reported associated product
CMS Open Payments — General Payments
5293 supporting records · 2861 recipient NPIs · example record 1200005083
Xolair · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Takeda Pharmaceuticals U.S.A., Inc.
Exact reporting entity; no affiliate inference
2025 TAKHZYRO
open payments reported associated product
CMS Open Payments — General Payments
3355 supporting records · 1604 recipient NPIs · example record 1223616316
Takhzyro · 2024
Exact normalized brand match · 1 Part D row
15 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
Albuterol Sulfate HfaAlbuterol Sulfate9235
Montelukast SodiumMontelukast Sodium8626
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride6722
Azelastine HclAzelastine Hcl6128
Arnuity ElliptaFluticasone Furoate6011
Advair HfaFluticasone Propion/Salmeterol51suppressed
Fluticasone PropionateFluticasone Propionate4622
XolairOmalizumab35suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol32suppressed
EpinephrineEpinephrine3219
Trelegy ElliptaFluticasone/Umeclidin/Vilanter25suppressed
Breo ElliptaFluticasone/Vilanterol24suppressed
Dupixent SyringeDupilumab22suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate18suppressed
PrednisonePrednisone1614
Incruse ElliptaUmeclidinium Bromide15suppressed
Ipratropium BromideIpratropium Bromide15suppressed
TakhzyroLanadelumab-Flyo15suppressed
AlvescoCiclesonide13suppressed
IcatibantIcatibant Acetate13suppressed
Ondansetron OdtOndansetron12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed

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 $5,127.13 · 207 records AstraZeneca Pharmaceuticals LP AIRSUPRA, ALYGLO, AREXVY, AYVAKIT, Albuked, Andembry, BREZTRI, CHARTIS CATHETER, CIBINQO, CUTAQUIG, CUVITRU, DONIDALORSEN, DUPIXENT, EBGLYSS, EOHILIA, EUCRISA, FASENRA, GAMMAKED, Haegarda, Hizentra, KEDRAB, KOATE, LITFULO, NEFFY, NEMLUVIO, NUCALA, OCTAGAM IMMUNE GLOBULIN (HUMAN), OPZELURA, ORLADEYO, PANZYGA, PEMGARDA, PULMONX CHARTIS TABLET CONSOLE, Prolastin-C Liquid, RUCONEST, Rhapsido, RhoGAM Ultra-Filtered PLUS, Sajazir, TAKHZYRO, TEZSPIRE, TRELEGY ELLIPTA, XOLAIR, Xembify, Xhance, ZEPHYR DELIVERY CATHETER, ZEPHYR ENDOBRONCHIAL VALVE 3
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