Payment overview · 2025
General Payments
$406.41
16 reported records · 7 companies
Healthcare provider profile · identity verified
Gary Ross Sirken, DO
Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · LANGHORNE, PA · NPI 1164469334
Verified facts
What the public records show
CMS Open Payments records show Gary Ross Sirken, DO received $406.41 in general payments during 2025 across 16 reported records.
Novartis Pharmaceuticals Corporation accounted for 27.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 8 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Jynarque, Rayaldee, Veltassa.
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 ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Entresto by this doctor in 2024.
OPKO Pharmaceuticals, 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 RAYALDEE as an associated drug or biological on 5435 records involving 1739 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Rayaldee by this doctor in 2024.
Otsuka America Pharmaceutical, 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 JYNARQUE as an associated drug or biological on 11133 records involving 4164 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Jynarque by this doctor in 2024.
Vifor Pharma, 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 Veltassa as an associated drug or biological on 5970 records involving 2480 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Veltassa by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
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 company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $109.56 | 27.0% | 5 | 2025 |
| Travere Therapeutics, Inc. | Unresolved — no canonical attribution shown | $97.25 | 23.9% | 3 | 2025 |
| Calliditas Therapeutics US Inc. | Unresolved — no canonical attribution shown | $68.78 | 16.9% | 2 | 2025 |
| Vifor Pharma, Inc. | Unresolved — no canonical attribution shown | $58.94 | 14.5% | 3 | 2025 |
| Otsuka America Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $29.34 | 7.2% | 1 | 2025 |
| AKEBIA THERAPEUTICS INC | Unresolved — no canonical attribution shown | $25.40 | 6.2% | 1 | 2025 |
| OPKO Pharmaceuticals, LLC | Unresolved — no canonical attribution shown | $17.14 | 4.2% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $406.41 | 16 |
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 product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Fabhalta Normalized: fabhalta |
Drug | Novartis Pharmaceuticals Corporation | $109.56 | 5 | 2025 |
Source payment records
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| Vanrafia Normalized: vanrafia |
Drug | Novartis Pharmaceuticals Corporation | $109.56 | 5 | 2025 |
Source payment records
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| TARPEYO Normalized: tarpeyo |
Drug | Calliditas Therapeutics US Inc. | $68.78 | 2 | 2025 |
Source payment records
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| Veltassa Normalized: veltassa |
Drug | Vifor Pharma, Inc. | $58.94 | 3 | 2025 |
Source payment records
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| Filspari Normalized: filspari |
Drug | Travere Therapeutics, Inc. | $32.19 | 1 | 2025 |
Source payment records
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| JYNARQUE Normalized: jynarque |
Drug | Otsuka America Pharmaceutical, Inc. | $29.34 | 1 | 2025 |
Source payment records
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| Vafseo Normalized: vafseo |
Drug | AKEBIA THERAPEUTICS INC | $25.40 | 1 | 2025 |
Source payment records
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| RAYALDEE Normalized: rayaldee |
Drug | OPKO Pharmaceuticals, LLC | $17.14 | 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.
Public prescribing for products named in payments
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| JYNARQUE jynarque |
2025 | Jynarque | 2024 | 13 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| RAYALDEE rayaldee |
2025 | Rayaldee | 2024 | 32 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Veltassa veltassa |
2025 | Veltassa | 2024 | 15 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 company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| Novartis Pharmaceuticals Corporation Exact reporting entity; no affiliate inference |
2025 | ENTRESTO open payments reported associated product |
CMS Open Payments — General Payments 9346 supporting records · 6254 recipient NPIs · example record 1200004797 |
Entresto · 2024 Exact normalized brand match · 1 Part D row |
15 | suppressed by CMS |
| OPKO Pharmaceuticals, LLC Exact reporting entity; no affiliate inference |
2025 | RAYALDEE open payments reported associated product |
CMS Open Payments — General Payments 5435 supporting records · 1739 recipient NPIs · example record 1222072234 |
Rayaldee · 2024 Exact normalized brand match · 1 Part D row |
32 | suppressed by CMS |
| Otsuka America Pharmaceutical, Inc. Exact reporting entity; no affiliate inference |
2025 | JYNARQUE open payments reported associated product |
CMS Open Payments — General Payments 11133 supporting records · 4164 recipient NPIs · example record 1227267725 |
Jynarque · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
| Vifor Pharma, Inc. Exact reporting entity; no affiliate inference |
2025 | Veltassa open payments reported associated product |
CMS Open Payments — General Payments 5970 supporting records · 2480 recipient NPIs · example record 1172020739 |
Veltassa · 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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Allopurinol | Allopurinol | 255 | 75 |
| Amlodipine Besylate | Amlodipine Besylate | 184 | 63 |
| Losartan Potassium | Losartan Potassium | 138 | 44 |
| Furosemide | Furosemide | 130 | 46 |
| Torsemide | Torsemide | 124 | 36 |
| Farxiga | Dapagliflozin Propanediol | 97 | 28 |
| Lisinopril | Lisinopril | 82 | 33 |
| Famotidine | Famotidine | 79 | 19 |
| Carvedilol | Carvedilol | 77 | 27 |
| Calcitriol | Calcitriol | 76 | 25 |
| Hydralazine Hcl | Hydralazine Hcl | 71 | 20 |
| Hydrochlorothiazide | Hydrochlorothiazide | 58 | 21 |
| Metoprolol Succinate | Metoprolol Succinate | 54 | 23 |
| Tamsulosin Hcl | Tamsulosin Hcl | 48 | 16 |
| Atorvastatin Calcium | Atorvastatin Calcium | 46 | 17 |
| Sevelamer Carbonate | Sevelamer Carbonate | 45 | 19 |
| Potassium Chloride | Potassium Chloride | 41 | 12 |
| Doxazosin Mesylate | Doxazosin Mesylate | 36 | suppressed |
| Spironolactone | Spironolactone | 36 | suppressed |
| Lokelma | Sodium Zirconium Cyclosilicate | 35 | 15 |
| Rayaldee | Calcifediol | 32 | suppressed |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 31 | suppressed |
| Prednisone | Prednisone | 29 | suppressed |
| Valsartan | Valsartan | 26 | suppressed |
| Kerendia | Finerenone | 25 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 23 | 11 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 18 | suppressed |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 17 | suppressed |
| Entresto | Sacubitril/Valsartan | 15 | suppressed |
| Jardiance | Empagliflozin | 15 | suppressed |
| Metolazone | Metolazone | 15 | suppressed |
| Veltassa | Patiromer Calcium Sorbitex | 15 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 14 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 14 | suppressed |
| Azathioprine | Azathioprine | 13 | suppressed |
| Icosapent Ethyl | Icosapent Ethyl | 13 | suppressed |
| Jynarque | Tolvaptan | 13 | suppressed |
| Krystexxa | Pegloticase | 13 | suppressed |
| Levofloxacin | Levofloxacin | 13 | 11 |
| Methylprednisolone | Methylprednisolone | 13 | suppressed |
| Methylprednisolone Sodium Succ | Methylprednisolone Sod Succ | 13 | suppressed |
| Nifedipine Er | Nifedipine | 13 | suppressed |
| Oxcarbazepine | Oxcarbazepine | 13 | suppressed |
| Azithromycin | Azithromycin | 12 | suppressed |
| Colchicine | Colchicine | 12 | suppressed |
| Levothyroxine Sodium | Levothyroxine Sodium | 12 | suppressed |
| Potassium Citrate Er | Potassium Citrate | 12 | suppressed |
| Bumetanide | Bumetanide | 11 | suppressed |
| Chlorthalidone | Chlorthalidone | 11 | suppressed |
| Ezetimibe | Ezetimibe | 11 | suppressed |
| Omeprazole | Omeprazole | 11 | suppressed |
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.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $406.41 · 16 records | Novartis Pharmaceuticals Corporation | Fabhalta, Filspari, JYNARQUE, RAYALDEE, TARPEYO, Vafseo, Vanrafia, Veltassa | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Jynarque play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Novartis Pharmaceuticals Corporation?
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| 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