Payment overview · 2025
General Payments
115 reported records · 12 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Allergy & Immunology|Allergy · FAIR LAWN, NJ · NPI 1235128497
Verified facts
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
115 reported records · 12 companies
Separate record types
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?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Pharming Healthcare, Inc. | Unresolved — no canonical attribution shown | $12,396.34 | 25.7% | 24 | 2025 |
| CSL Behring | Unresolved — no canonical attribution shown | $10,605.97 | 22.0% | 12 | 2025 |
| Ionis Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $9,999.15 | 20.8% | 16 | 2025 |
| BioCryst US Sales Co., LLC | Unresolved — no canonical attribution shown | $9,841.47 | 20.4% | 11 | 2025 |
| BioCryst Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $4,644.28 | 9.6% | 7 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $412.14 | 0.9% | 24 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $190.65 | 0.4% | 15 | 2025 |
| Organon LLC | Unresolved — no canonical attribution shown | $29.72 | 0.1% | 2 | 2025 |
| Blueprint Medicines Corporation | Unresolved — no canonical attribution shown | $18.85 | 0.0% | 1 | 2025 |
| Cycle Pharmaceuticals Inc | Unresolved — no canonical attribution shown | $16.86 | 0.0% | 1 | 2025 |
| Regeneron Healthcare Solutions, Inc. | Unresolved — no canonical attribution shown | $16.86 | 0.0% | 1 | 2025 |
| ARS Pharmaceuticals Operations, Inc. | Unresolved — no canonical attribution shown | $14.25 | 0.0% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $30,070.00 | 12 |
| Consulting Fee | $14,072.00 | 6 |
| Food and Beverage | $2,353.23 | 86 |
| Travel and Lodging | $1,691.31 | 11 |
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
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| ORLADEYO Normalized: orladeyo |
Drug | BioCryst Pharmaceuticals, Inc., BioCryst US Sales Co., LLC | $14,416.48 | 15 | 2025 |
Source payment records
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| RUCONEST Normalized: ruconest |
Biological | Pharming Healthcare, Inc. | $12,396.34 | 24 | 2025 |
Source payment records
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| Andembry Normalized: andembry |
Biological | CSL Behring | $10,549.88 | 9 | 2025 |
Source payment records
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| DAWNZERA Normalized: dawnzera |
Drug | Ionis Pharmaceuticals, Inc. | $9,979.22 | 15 | 2025 |
Source payment records
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| XOLAIR Normalized: xolair |
Drug | Novartis Pharmaceuticals Corporation | $328.98 | 16 | 2025 |
Source payment records
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| DUPIXENT Normalized: dupixent |
Biological | GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. | $190.09 | 15 | 2025 |
Source payment records
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| Rhapsido Normalized: rhapsido |
Drug | Novartis Pharmaceuticals Corporation | $47.44 | 3 | 2025 |
Source payment records
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| AYVAKIT Normalized: ayvakit |
Biological, Drug | Blueprint Medicines Corporation, GENZYME CORPORATION | $36.27 | 2 | 2025 |
Source payment records
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| Hizentra Normalized: hizentra |
Biological | CSL Behring | $32.11 | 2 | 2025 |
Source payment records
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| Haegarda Normalized: haegarda |
Biological | CSL Behring | $23.98 | 1 | 2025 |
Source payment records
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| Sajazir Normalized: sajazir |
Drug | Cycle Pharmaceuticals Inc | $16.86 | 1 | 2025 |
Source payment records
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| NEFFY Normalized: neffy |
Drug | ARS Pharmaceuticals Operations, Inc. | $14.25 | 1 | 2025 |
Source payment records
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* 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.
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| 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
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 company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| 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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Montelukast Sodium | Montelukast Sodium | 95 | 23 |
| Takhzyro | Lanadelumab-Flyo | 58 | suppressed |
| Arnuity Ellipta | Fluticasone Furoate | 34 | suppressed |
| Prednisone | Prednisone | 26 | 14 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 24 | 18 |
| Breo Ellipta | Fluticasone/Vilanterol | 22 | suppressed |
| Ruconest | C1 Esterase Inhibitor, Recomb | 22 | suppressed |
| Sajazir | Icatibant Acetate | 18 | suppressed |
| Dupixent Syringe | Dupilumab | 13 | suppressed |
Timeline
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.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part 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
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| Dataset | Year | Publication | Source |
|---|---|---|---|
| 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 |
Full methodology · Questions & answers · Report a possible error