Healthcare provider profile · identity verified

Jay Michael Kashkin, MD

Allopathic & Osteopathic Physicians|Allergy & Immunology|Allergy · FAIR LAWN, NJ · NPI 1235128497

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 Jay Michael Kashkin, MD received $48,186.54 in general payments during 2025 across 115 reported records.

Pharming Healthcare, Inc. accounted for 25.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ruconest, Sajazir.

Cycle 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 Sajazir as an associated drug or biological on 1335 records involving 818 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Sajazir by this doctor in 2024.

Pharming Healthcare, 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 RUCONEST as an associated drug or biological on 5086 records involving 1950 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Ruconest by this doctor in 2024.

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

Payment overview · 2025

General Payments

$48,186.54

115 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
Pharming Healthcare, Inc. Unresolved — no canonical attribution shown $12,396.3425.7%242025
CSL Behring Unresolved — no canonical attribution shown $10,605.9722.0%122025
Ionis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $9,999.1520.8%162025
BioCryst US Sales Co., LLC Unresolved — no canonical attribution shown $9,841.4720.4%112025
BioCryst Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $4,644.289.6%72025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $412.140.9%242025
GENZYME CORPORATION Unresolved — no canonical attribution shown $190.650.4%152025
Organon LLC Unresolved — no canonical attribution shown $29.720.1%22025
Blueprint Medicines Corporation Unresolved — no canonical attribution shown $18.850.0%12025
Cycle Pharmaceuticals Inc Unresolved — no canonical attribution shown $16.860.0%12025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $16.860.0%12025
ARS Pharmaceuticals Operations, Inc. Unresolved — no canonical attribution shown $14.250.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$30,070.0012
Consulting Fee$14,072.006
Food and Beverage$2,353.2386
Travel and Lodging$1,691.3111

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
ORLADEYO
Normalized: orladeyo
Drug BioCryst Pharmaceuticals, Inc., BioCryst US Sales Co., LLC $14,416.48 15 2025
Source payment records
RUCONEST
Normalized: ruconest
Biological Pharming Healthcare, Inc. $12,396.34 24 2025
Source payment records
Andembry
Normalized: andembry
Biological CSL Behring $10,549.88 9 2025
Source payment records
DAWNZERA
Normalized: dawnzera
Drug Ionis Pharmaceuticals, Inc. $9,979.22 15 2025
Source payment records
XOLAIR
Normalized: xolair
Drug Novartis Pharmaceuticals Corporation $328.98 16 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $190.09 15 2025
Source payment records
Rhapsido
Normalized: rhapsido
Drug Novartis Pharmaceuticals Corporation $47.44 3 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Biological, Drug Blueprint Medicines Corporation, GENZYME CORPORATION $36.27 2 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $32.11 2 2025
Source payment records
Haegarda
Normalized: haegarda
Biological CSL Behring $23.98 1 2025
Source payment records
Sajazir
Normalized: sajazir
Drug Cycle Pharmaceuticals Inc $16.86 1 2025
Source payment records
NEFFY
Normalized: neffy
Drug ARS Pharmaceuticals Operations, Inc. $14.25 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
RUCONEST
ruconest
2025 Ruconest 2024 22
Beneficiary count suppressed
exact normalized Medicare Part D
Sajazir
sajazir
2025 Sajazir 2024 18
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
Cycle Pharmaceuticals Inc
Exact reporting entity; no affiliate inference
2025 Sajazir
open payments reported associated product
CMS Open Payments — General Payments
1335 supporting records · 818 recipient NPIs · example record 1248898734
Sajazir · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
Pharming Healthcare, Inc.
Exact reporting entity; no affiliate inference
2025 RUCONEST
open payments reported associated product
CMS Open Payments — General Payments
5086 supporting records · 1950 recipient NPIs · example record 1200795269
Ruconest · 2024
Exact normalized brand match · 1 Part D row
22 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
Montelukast SodiumMontelukast Sodium9523
TakhzyroLanadelumab-Flyo58suppressed
Arnuity ElliptaFluticasone Furoate34suppressed
PrednisonePrednisone2614
Albuterol Sulfate HfaAlbuterol Sulfate2418
Breo ElliptaFluticasone/Vilanterol22suppressed
RuconestC1 Esterase Inhibitor, Recomb22suppressed
SajazirIcatibant Acetate18suppressed
Dupixent SyringeDupilumab13suppressed

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 $48,186.54 · 115 records Pharming Healthcare, Inc. AYVAKIT, Andembry, DAWNZERA, DUPIXENT, Haegarda, Hizentra, NEFFY, ORLADEYO, RUCONEST, Rhapsido, Sajazir, XOLAIR 2
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