Payment overview · 2025
General Payments
$1,556.12
51 reported records · 19 companies
Healthcare provider profile · identity verified
Karthik Kumar Challa, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · ELGIN, IL · NPI 1619293131
Verified facts
What the public records show
CMS Open Payments records show Karthik Kumar Challa, M.D. received $1,556.12 in general payments during 2025 across 51 reported records.
Amgen Inc. accounted for 16.1% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 23 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance.
Boehringer Ingelheim 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Jardiance by this doctor in 2024.
Janssen 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 XARELTO as an associated drug or biological on 28 records involving 28 distinct recipient NPIs. Public Medicare Part D data also shows 272 claims for Xarelto 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 ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 48 claims for Entresto 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 |
|---|---|---|---|---|---|
| Amgen Inc. | Unresolved — no canonical attribution shown | $250.99 | 16.1% | 12 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $248.65 | 16.0% | 3 | 2025 |
| Edwards Lifesciences Corporation | Unresolved — no canonical attribution shown | $208.04 | 13.4% | 2 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $171.06 | 11.0% | 5 | 2025 |
| ABIOMED | Unresolved — no canonical attribution shown | $154.33 | 9.9% | 6 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $84.75 | 5.5% | 3 | 2025 |
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $82.19 | 5.3% | 4 | 2025 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | Unresolved — no canonical attribution shown | $66.35 | 4.3% | 3 | 2025 |
| Stryker Corporation | Unresolved — no canonical attribution shown | $50.26 | 3.2% | 2 | 2025 |
| Inari Medical, Inc. | Unresolved — no canonical attribution shown | $50.25 | 3.2% | 2 | 2025 |
| HEARTFLOW, INC. | Unresolved — no canonical attribution shown | $24.51 | 1.6% | 1 | 2025 |
| Becton, Dickinson and Company | Unresolved — no canonical attribution shown | $23.87 | 1.5% | 1 | 2025 |
| CVRx, Inc. | Unresolved — no canonical attribution shown | $23.23 | 1.5% | 1 | 2025 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $22.64 | 1.4% | 1 | 2025 |
| Imperative Care, Inc | Unresolved — no canonical attribution shown | $20.26 | 1.3% | 1 | 2025 |
| Chiesi USA, Inc. | Unresolved — no canonical attribution shown | $20.03 | 1.3% | 1 | 2025 |
| ASAHI INTECC USA, INC. | Unresolved — no canonical attribution shown | $19.96 | 1.3% | 1 | 2025 |
| Medtronic, Inc. |
Medtronic, Inc. exact · evidence 2025-07-22 |
$18.03 | 1.2% | 1 | 2025 |
| Janssen Pharmaceuticals, Inc | Unresolved — no canonical attribution shown | $16.72 | 1.1% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,556.12 | 51 |
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 |
|---|---|---|---|---|---|
| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $228.66 | 2 | 2025 |
Source payment records
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| REPATHA Normalized: repatha |
Biological | Amgen Inc. | $182.99 | 9 | 2025 |
Source payment records
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| SAPIEN 3 Ultra RESILIA Normalized: sapien 3 ultra resilia |
Device | Edwards Lifesciences Corporation | $171.59 | 1 | 2025 |
Source payment records
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| CARDIOMEMS Normalized: cardiomems |
Device | Abbott Laboratories | $143.84 | 2 | 2025 |
Source payment records
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| CT THROMBECTOMY SYSTEM KIT Normalized: ct thrombectomy system kit |
Device | Inari Medical, Inc., Stryker Corporation | $100.51 | 4 | 2025 |
Source payment records
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| FLOWTRIEVER CATHETER, S Normalized: flowtriever catheter s |
Device | Inari Medical, Inc., Stryker Corporation | $100.51 | 4 | 2025 |
Source payment records
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| LEQVIO Normalized: leqvio |
Drug | Novartis Pharmaceuticals Corporation | $84.75 | 3 | 2025 |
Source payment records
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| LifeVest Normalized: lifevest |
Device | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $66.35 | 3 | 2025 |
Source payment records
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| AVVIGO Guidance System Normalized: avvigo guidance system |
Device | Boston Scientific Corporation | $55.82 | 3 | 2025 |
Source payment records
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| PASCAL Normalized: pascal |
Device | Edwards Lifesciences Corporation | $36.45 | 1 | 2025 |
Source payment records
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| WATCHMAN FLX Normalized: watchman flx |
Device | Boston Scientific Corporation | $26.37 | 1 | 2025 |
Source payment records
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| FFRct Normalized: ffrct |
Device | HEARTFLOW, INC. | $24.51 | 1 | 2025 |
Source payment records
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| RotarexS 6 F x 135 cm Normalized: rotarexs 6 f x 135 cm |
Device | Becton, Dickinson and Company | $23.87 | 1 | 2025 |
Source payment records
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| Barostim Neo System Normalized: barostim neo system |
Device | CVRx, Inc. | $23.23 | 1 | 2025 |
Source payment records
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| JARDIANCE Normalized: jardiance |
Drug | Boehringer Ingelheim Pharmaceuticals, Inc. | $22.64 | 1 | 2025 |
Source payment records
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| ESPRIT Normalized: esprit |
Device | Abbott Laboratories | $22.07 | 2 | 2025 |
Source payment records
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| SYMPHONY CATHETER Normalized: symphony catheter |
Device | Imperative Care, Inc | $20.26 | 1 | 2025 |
Source payment records
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| KENGREAL Normalized: kengreal |
Drug | Chiesi USA, Inc. | $20.03 | 1 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $19.99 | 1 | 2025 |
Source payment records
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| Asahi Coronary Wires Normalized: asahi coronary wires |
Device | ASAHI INTECC USA, INC. | $19.96 | 1 | 2025 |
Source payment records
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| COREVALVE EVOLUT R Normalized: corevalve evolut r |
Device | Medtronic, Inc. | $18.03 | 1 | 2025 |
Source payment records
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| UPTRAVI Normalized: uptravi |
Drug | Janssen Pharmaceuticals, Inc | $16.72 | 1 | 2025 |
Source payment records
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| PERCLOSE PROSTYLE Normalized: perclose prostyle |
Device | Abbott Laboratories | $5.15 | 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 |
|---|---|---|---|---|---|---|
| JARDIANCE jardiance |
2025 | Jardiance | 2024 | 74 | 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 |
|---|---|---|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. Exact reporting entity; no affiliate inference |
2025 | JARDIANCE open payments reported associated product |
CMS Open Payments — General Payments 123636 supporting records · 49438 recipient NPIs · example record 1221811583 |
Jardiance · 2024 Exact normalized brand match · 1 Part D row |
74 | 22 |
| Janssen Pharmaceuticals, Inc Exact reporting entity; no affiliate inference |
2025 | XARELTO open payments reported associated product |
CMS Open Payments — General Payments 28 supporting records · 28 recipient NPIs · example record 1174296970 |
Xarelto · 2024 Exact normalized brand match · 1 Part D row |
272 | 60 |
| 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 |
48 | 12 |
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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 376 | 120 |
| Metoprolol Succinate | Metoprolol Succinate | 295 | 95 |
| Carvedilol | Carvedilol | 289 | 93 |
| Xarelto | Rivaroxaban | 272 | 60 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 233 | 71 |
| Amlodipine Besylate | Amlodipine Besylate | 152 | 46 |
| Losartan Potassium | Losartan Potassium | 152 | 52 |
| Furosemide | Furosemide | 135 | 45 |
| Nifedipine Er | Nifedipine | 122 | 46 |
| Clopidogrel | Clopidogrel Bisulfate | 110 | 40 |
| Eliquis | Apixaban | 105 | 29 |
| Lisinopril | Lisinopril | 104 | 35 |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 84 | 26 |
| Repatha Sureclick | Evolocumab | 82 | 11 |
| Bumetanide | Bumetanide | 81 | 30 |
| Metoprolol Tartrate | Metoprolol Tartrate | 81 | 24 |
| Jardiance | Empagliflozin | 74 | 22 |
| Potassium Chloride | Potassium Chloride | 55 | 18 |
| Ezetimibe | Ezetimibe | 52 | 15 |
| Spironolactone | Spironolactone | 52 | 21 |
| Entresto | Sacubitril/Valsartan | 48 | 12 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 42 | 15 |
| Cilostazol | Cilostazol | 37 | 11 |
| Hydrochlorothiazide | Hydrochlorothiazide | 34 | suppressed |
| Simvastatin | Simvastatin | 31 | suppressed |
| Praluent Pen | Alirocumab | 22 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 21 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 17 | suppressed |
| Irbesartan | Irbesartan | 16 | suppressed |
| Atenolol | Atenolol | 14 | suppressed |
| Diltiazem 12hr Er | Diltiazem Hcl | 14 | suppressed |
| Fenofibrate | Fenofibrate | 14 | suppressed |
| Valsartan | Valsartan | 14 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 13 | suppressed |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 12 | suppressed |
| Enalapril Maleate | Enalapril Maleate | 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 | $1,556.12 · 51 records | Amgen Inc. | AVVIGO Guidance System, Asahi Coronary Wires, Barostim Neo System, CARDIOMEMS, COREVALVE EVOLUT R, CT THROMBECTOMY SYSTEM KIT, ESPRIT, FFRct, FLOWTRIEVER CATHETER, S, JARDIANCE, KENGREAL, LEQVIO, LifeVest, Ozempic, PASCAL, PERCLOSE PROSTYLE, REPATHA, RotarexS 6 F x 135 cm, SAPIEN 3 Ultra RESILIA, SYMPHONY CATHETER, UPTRAVI, WATCHMAN FLX, Wegovy | 3 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Jardiance play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Boehringer Ingelheim Pharmaceuticals, Inc.?
- 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