Payment overview · 2025
General Payments
$1,269.56
50 reported records · 23 companies
Healthcare provider profile · identity verified
Brian N Walker, DO
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · JACKSON, TN · NPI 1144290032
Verified facts
What the public records show
CMS Open Payments records show Brian N Walker, DO received $1,269.56 in general payments during 2025 across 50 reported records.
SANOFI-AVENTIS U.S. LLC accounted for 17.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 30 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Imbruvica, Jakafi.
ABBVIE 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 IMBRUVICA as an associated drug or biological on 15599 records involving 6881 distinct recipient NPIs. Public Medicare Part D data also shows 111 claims for Imbruvica by this doctor in 2024.
AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TAGRISSO as an associated drug or biological on 5285 records involving 2776 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Tagrisso by this doctor in 2024.
Celgene 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 ELIQUIS as an associated drug or biological on 25 records involving 24 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Eliquis by this doctor in 2024.
E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Eliquis by this doctor in 2024.
Incyte 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 JAKAFI as an associated drug or biological on 14854 records involving 6477 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Jakafi by this doctor in 2024.
Janssen Biotech, 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 IMBRUVICA as an associated drug or biological on 47 records involving 33 distinct recipient NPIs. Public Medicare Part D data also shows 111 claims for Imbruvica by this doctor in 2024.
Janssen Biotech, 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 24 records involving 23 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Xarelto by this doctor in 2024.
PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Eliquis by this doctor in 2024.
PFIZER 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 IBRANCE as an associated drug or biological on 11505 records involving 4934 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Ibrance by this doctor in 2024.
PFIZER 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 66 claims for Xtandi 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 |
|---|---|---|---|---|---|
| SANOFI-AVENTIS U.S. LLC | Unresolved — no canonical attribution shown | $224.95 | 17.7% | 2 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $149.65 | 11.8% | 7 | 2025 |
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $116.15 | 9.2% | 6 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $104.18 | 8.2% | 4 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $88.87 | 7.0% | 4 | 2025 |
| Daiichi Sankyo Inc. | Unresolved — no canonical attribution shown | $81.53 | 6.4% | 3 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $74.53 | 5.9% | 4 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $62.71 | 4.9% | 3 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $43.61 | 3.4% | 2 | 2025 |
| Aveo Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $31.50 | 2.5% | 1 | 2025 |
| Exelixis Inc. | Unresolved — no canonical attribution shown | $31.06 | 2.5% | 2 | 2025 |
| SOBI, INC | Unresolved — no canonical attribution shown | $30.16 | 2.4% | 1 | 2025 |
| Tempus AI, Inc | Unresolved — no canonical attribution shown | $26.26 | 2.1% | 1 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $26.18 | 2.1% | 1 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $22.91 | 1.8% | 1 | 2025 |
| Karyopharm Therapeutics Inc. | Unresolved — no canonical attribution shown | $22.77 | 1.8% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $22.44 | 1.8% | 1 | 2025 |
| Genmab U.S., Inc. | Unresolved — no canonical attribution shown | $20.13 | 1.6% | 1 | 2025 |
| Incyte Corporation | Unresolved — no canonical attribution shown | $19.02 | 1.5% | 1 | 2025 |
| Celgene Corporation | Unresolved — no canonical attribution shown | $19.00 | 1.5% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $18.08 | 1.4% | 1 | 2025 |
| Pharmacosmos Therapeutics Inc. | Unresolved — no canonical attribution shown | $17.00 | 1.3% | 1 | 2025 |
| PUMA BIOTECHNOLOGY, INC. | Unresolved — no canonical attribution shown | $16.87 | 1.3% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,146.51 | 48 |
| Education | $123.05 | 2 |
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 |
|---|---|---|---|---|---|
| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $149.65 | 7 | 2025 |
Source payment records
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| SARCLISA Normalized: sarclisa |
Biological | GENZYME CORPORATION, SANOFI-AVENTIS U.S. LLC | $126.13 | 2 | 2025 |
Source payment records
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| REZUROCK Normalized: rezurock |
Drug | SANOFI-AVENTIS U.S. LLC | $125.00 | 1 | 2025 |
Source payment records
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| ENHERTU Normalized: enhertu |
Biological, Drug | AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. | $102.04 | 4 | 2025 |
Source payment records
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| LYNPARZA Normalized: lynparza |
Biological | Merck Sharp & Dohme LLC | $100.32 | 4 | 2025 |
Source payment records
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| OPDIVO Normalized: opdivo |
Biological | Celgene Corporation, E.R. Squibb & Sons, L.L.C. | $93.23 | 5 | 2025 |
Source payment records
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| IMBRUVICA Normalized: imbruvica |
Drug | ABBVIE INC. | $71.06 | 3 | 2025 |
Source payment records
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| EPKINLY Normalized: epkinly |
Drug | ABBVIE INC., Genmab U.S., Inc. | $67.51 | 3 | 2025 |
Source payment records
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| KISQALI Normalized: kisqali |
Drug | Novartis Pharmaceuticals Corporation | $57.15 | 2 | 2025 |
Source payment records
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| OJJAARA Normalized: ojjaara |
Drug | GlaxoSmithKline, LLC. | $41.66 | 2 | 2025 |
Source payment records
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| VENCLEXTA Normalized: venclexta |
Biological, Drug | ABBVIE INC., Genentech USA, Inc. | $40.72 | 2 | 2025 |
Source payment records
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| FOTIVDA Normalized: fotivda |
Drug | Aveo Pharmaceuticals, Inc. | $31.50 | 1 | 2025 |
Source payment records
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| CABOMETYX Normalized: cabometyx |
Drug | Exelixis Inc. | $31.06 | 2 | 2025 |
Source payment records
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| Vonjo Normalized: vonjo |
Drug | SOBI, INC | $30.16 | 1 | 2025 |
Source payment records
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| TALVEY Normalized: talvey |
Biological | Janssen Biotech, Inc. | $29.83 | 2 | 2025 |
Source payment records
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| SCEMBLIX Normalized: scemblix |
Drug | Novartis Pharmaceuticals Corporation | $26.75 | 1 | 2025 |
Source payment records
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| XT CDX Normalized: xt cdx |
Device | Tempus AI, Inc | $26.26 | 1 | 2025 |
Source payment records
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| CARVYKTI Normalized: carvykti |
Drug | Janssen Biotech, Inc. | $23.18 | 1 | 2025 |
Source payment records
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| XPOVIO Normalized: xpovio |
Drug | Karyopharm Therapeutics Inc. | $22.77 | 1 | 2025 |
Source payment records
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| JAYPIRCA Normalized: jaypirca |
Drug | Lilly USA, LLC | $22.44 | 1 | 2025 |
Source payment records
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| VERZENIO Normalized: verzenio |
Drug | Lilly USA, LLC | $22.44 | 1 | 2025 |
Source payment records
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| AKEEGA Normalized: akeega |
Drug | Janssen Biotech, Inc. | $21.52 | 1 | 2025 |
Source payment records
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| BALVERSA Normalized: balversa |
Drug | Janssen Biotech, Inc. | $21.52 | 1 | 2025 |
Source payment records
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| ERLEADA Normalized: erleada |
Drug | Janssen Biotech, Inc. | $21.52 | 1 | 2025 |
Source payment records
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| JEMPERLI Normalized: jemperli |
Biological | GlaxoSmithKline, LLC. | $21.05 | 1 | 2025 |
Source payment records
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| ZEJULA Normalized: zejula |
Drug | GlaxoSmithKline, LLC. | $21.05 | 1 | 2025 |
Source payment records
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| Fabhalta Normalized: fabhalta |
Drug | Novartis Pharmaceuticals Corporation | $20.28 | 1 | 2025 |
Source payment records
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| JAKAFI Normalized: jakafi |
Drug | Incyte Corporation | $19.02 | 1 | 2025 |
Source payment records
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| MONOFERRIC Normalized: monoferric |
Drug | Pharmacosmos Therapeutics Inc. | $17.00 | 1 | 2025 |
Source payment records
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| NERLYNX Normalized: nerlynx |
Drug | PUMA BIOTECHNOLOGY, INC. | $16.87 | 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 |
|---|---|---|---|---|---|---|
| IMBRUVICA imbruvica |
2025 | Imbruvica | 2024 | 111 | exact normalized | Medicare Part D |
| JAKAFI jakafi |
2025 | Jakafi | 2024 | 25 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 |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | IMBRUVICA open payments reported associated product |
CMS Open Payments — General Payments 15599 supporting records · 6881 recipient NPIs · example record 1201352838 |
Imbruvica · 2024 Exact normalized brand match · 1 Part D row |
111 | 12 |
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | TAGRISSO open payments reported associated product |
CMS Open Payments — General Payments 5285 supporting records · 2776 recipient NPIs · example record 1206131546 |
Tagrisso · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
| Celgene Corporation Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 25 supporting records · 24 recipient NPIs · example record 1184385048 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
18 | suppressed by CMS |
| E.R. Squibb & Sons, L.L.C. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 27956 supporting records · 14870 recipient NPIs · example record 1184377713 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
18 | suppressed by CMS |
| Incyte Corporation Exact reporting entity; no affiliate inference |
2025 | JAKAFI open payments reported associated product |
CMS Open Payments — General Payments 14854 supporting records · 6477 recipient NPIs · example record 1225959940 |
Jakafi · 2024 Exact normalized brand match · 1 Part D row |
25 | suppressed by CMS |
| Janssen Biotech, Inc. Exact reporting entity; no affiliate inference |
2025 | IMBRUVICA open payments reported associated product |
CMS Open Payments — General Payments 47 supporting records · 33 recipient NPIs · example record 1174328453 |
Imbruvica · 2024 Exact normalized brand match · 1 Part D row |
111 | 12 |
| Janssen Biotech, Inc. Exact reporting entity; no affiliate inference |
2025 | XARELTO open payments reported associated product |
CMS Open Payments — General Payments 24 supporting records · 23 recipient NPIs · example record 1174259978 |
Xarelto · 2024 Exact normalized brand match · 1 Part D row |
29 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 87112 supporting records · 36032 recipient NPIs · example record 1228794063 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
18 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | IBRANCE open payments reported associated product |
CMS Open Payments — General Payments 11505 supporting records · 4934 recipient NPIs · example record 1228794164 |
Ibrance · 2024 Exact normalized brand match · 1 Part D row |
18 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 19368 supporting records · 7657 recipient NPIs · example record 1228794230 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
66 | 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 |
|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 273 | 75 |
| Anastrozole | Anastrozole | 237 | 71 |
| Ondansetron Odt | Ondansetron | 131 | 74 |
| Gabapentin | Gabapentin | 120 | 29 |
| Imbruvica | Ibrutinib | 111 | 12 |
| Dexamethasone | Dexamethasone | 98 | 55 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 90 | 31 |
| Prednisone | Prednisone | 87 | 35 |
| Morphine Sulfate Er | Morphine Sulfate | 72 | 16 |
| Acyclovir | Acyclovir | 70 | 16 |
| Omeprazole | Omeprazole | 68 | 26 |
| Xtandi | Enzalutamide | 66 | suppressed |
| Letrozole | Letrozole | 60 | 18 |
| Lorazepam | Lorazepam | 54 | 23 |
| Meloxicam | Meloxicam | 41 | 19 |
| Levofloxacin | Levofloxacin | 38 | 28 |
| Citalopram Hbr | Citalopram Hydrobromide | 35 | suppressed |
| Tasigna | Nilotinib Hcl | 35 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 35 | suppressed |
| Promethazine Hcl | Promethazine Hcl | 30 | 17 |
| Xarelto | Rivaroxaban | 29 | suppressed |
| Jakafi | Ruxolitinib Phosphate | 25 | suppressed |
| Potassium Chloride | Potassium Chloride | 22 | 13 |
| Alprazolam | Alprazolam | 20 | suppressed |
| Amlodipine Besylate | Amlodipine Besylate | 19 | suppressed |
| Levothyroxine Sodium | Levothyroxine Sodium | 19 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 19 | 15 |
| Eliquis | Apixaban | 18 | suppressed |
| Fluconazole | Fluconazole | 18 | suppressed |
| Hydroxyurea | Hydroxyurea | 18 | suppressed |
| Ibrance | Palbociclib | 18 | suppressed |
| Cephalexin | Cephalexin | 17 | 16 |
| Abiraterone Acetate | Abiraterone Acetate | 16 | suppressed |
| Fentanyl | Fentanyl | 16 | suppressed |
| Imatinib Mesylate | Imatinib Mesylate | 16 | suppressed |
| Doxycycline Hyclate | Doxycycline Hyclate | 15 | suppressed |
| Lenalidomide | Lenalidomide | 14 | suppressed |
| Tagrisso | Osimertinib Mesylate | 13 | suppressed |
| Bicalutamide | Bicalutamide | 11 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 11 | suppressed |
| Furosemide | Furosemide | 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 | $1,269.56 · 50 records | SANOFI-AVENTIS U.S. LLC | AKEEGA, BALVERSA, CABOMETYX, CARVYKTI, ENHERTU, EPKINLY, ERLEADA, FOTIVDA, Fabhalta, IMBRUVICA, JAKAFI, JAYPIRCA, JEMPERLI, KEYTRUDA, KISQALI, LYNPARZA, MONOFERRIC, NERLYNX, OJJAARA, OPDIVO, REZUROCK, SARCLISA, SCEMBLIX, TALVEY, VENCLEXTA, VERZENIO, Vonjo, XPOVIO, XT CDX, ZEJULA | 10 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Imbruvica play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with ABBVIE 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