Payment overview · 2025
General Payments
$216.48
10 reported records · 6 companies
Healthcare provider profile · identity verified
John A Walker, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · HAMMOND, LA · NPI 1477536324
Verified facts
What the public records show
CMS Open Payments records show John A Walker, M.D. received $216.48 in general payments during 2025 across 10 reported records.
GlaxoSmithKline, LLC. accounted for 26.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 9 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Trelegy Ellipta.
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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Linzess by this doctor in 2024.
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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 44 claims for Synthroid 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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Farxiga by this doctor in 2024.
GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Trelegy Ellipta 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 |
|---|---|---|---|---|---|
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $57.87 | 26.7% | 3 | 2025 |
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $52.81 | 24.4% | 1 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $35.18 | 16.2% | 2 | 2025 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | Unresolved — no canonical attribution shown | $32.58 | 15.1% | 2 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $20.55 | 9.5% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $17.49 | 8.1% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $216.48 | 10 |
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 |
|---|---|---|---|---|---|
| AMS 700 Normalized: ams 700 |
Device | Boston Scientific Corporation | $52.81 | 1 | 2025 |
Source payment records
|
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| TRELEGY ELLIPTA Normalized: trelegy ellipta |
Drug | GlaxoSmithKline, LLC. | $36.36 | 2 | 2025 |
Source payment records
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| XIFAXAN Normalized: xifaxan |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $35.18 | 2 | 2025 |
Source payment records
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| CAPLYTA Normalized: caplyta |
Drug | ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | $32.58 | 2 | 2025 |
Source payment records
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| AREXVY Normalized: arexvy |
Biological | GlaxoSmithKline, LLC. | $21.51 | 1 | 2025 |
Source payment records
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| SHINGRIX Normalized: shingrix |
Biological | GlaxoSmithKline, LLC. | $21.51 | 1 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $20.55 | 1 | 2025 |
Source payment records
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $20.55 | 1 | 2025 |
Source payment records
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| BREZTRI Normalized: breztri |
Drug | AstraZeneca Pharmaceuticals LP | $17.49 | 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 |
|---|---|---|---|---|---|---|
| TRELEGY ELLIPTA trelegy ellipta |
2025 | Trelegy Ellipta | 2024 | 42 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 | LINZESS open payments reported associated product |
CMS Open Payments — General Payments 87954 supporting records · 21815 recipient NPIs · example record 1201352608 |
Linzess · 2024 Exact normalized brand match · 1 Part D row |
22 | suppressed by CMS |
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | SYNTHROID open payments reported associated product |
CMS Open Payments — General Payments 10655 supporting records · 4881 recipient NPIs · example record 1201352636 |
Synthroid · 2024 Exact normalized brand match · 1 Part D row |
44 | 11 |
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | FARXIGA open payments reported associated product |
CMS Open Payments — General Payments 106133 supporting records · 42906 recipient NPIs · example record 1206131362 |
Farxiga · 2024 Exact normalized brand match · 1 Part D row |
30 | suppressed by CMS |
| GlaxoSmithKline, LLC. Exact reporting entity; no affiliate inference |
2025 | TRELEGY ELLIPTA open payments reported associated product |
CMS Open Payments — General Payments 131532 supporting records · 37148 recipient NPIs · example record 1190332369 |
Trelegy Ellipta · 2024 Exact normalized brand match · 1 Part D row |
42 | 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 |
|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 354 | 94 |
| Atorvastatin Calcium | Atorvastatin Calcium | 314 | 87 |
| Levothyroxine Sodium | Levothyroxine Sodium | 271 | 78 |
| Lisinopril | Lisinopril | 228 | 64 |
| Losartan Potassium | Losartan Potassium | 151 | 39 |
| Pantoprazole Sodium | Pantoprazole Sodium | 149 | 42 |
| Ozempic | Semaglutide | 146 | 24 |
| Metformin Hcl | Metformin Hcl | 142 | 40 |
| Escitalopram Oxalate | Escitalopram Oxalate | 134 | 28 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 115 | 38 |
| Metoprolol Succinate | Metoprolol Succinate | 108 | 29 |
| Mounjaro | Tirzepatide | 97 | 14 |
| Omeprazole | Omeprazole | 95 | 25 |
| Carvedilol | Carvedilol | 92 | 28 |
| Pravastatin Sodium | Pravastatin Sodium | 86 | 24 |
| Clopidogrel | Clopidogrel Bisulfate | 78 | 19 |
| Allopurinol | Allopurinol | 70 | 19 |
| Furosemide | Furosemide | 68 | 24 |
| Sertraline Hcl | Sertraline Hcl | 68 | 17 |
| Jardiance | Empagliflozin | 62 | 14 |
| Benazepril Hcl | Benazepril Hcl | 61 | 15 |
| Fluticasone Propionate | Fluticasone Propionate | 60 | 21 |
| Irbesartan | Irbesartan | 58 | 18 |
| Metformin Hcl Er | Metformin Hcl | 57 | 21 |
| Fluoxetine Hcl | Fluoxetine Hcl | 45 | 12 |
| Memantine Hcl Er | Memantine Hcl | 44 | suppressed |
| Synthroid | Levothyroxine Sodium | 44 | 11 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 42 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 41 | 12 |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 40 | 11 |
| Ezetimibe | Ezetimibe | 38 | 11 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 37 | suppressed |
| Bupropion Xl | Bupropion Hcl | 37 | suppressed |
| Hydrochlorothiazide | Hydrochlorothiazide | 37 | 12 |
| Alprazolam | Alprazolam | 36 | 11 |
| Trulicity | Dulaglutide | 36 | suppressed |
| Gabapentin | Gabapentin | 34 | 11 |
| Memantine Hcl | Memantine Hcl | 33 | suppressed |
| Tamsulosin Hcl | Tamsulosin Hcl | 33 | 11 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 31 | suppressed |
| Potassium Chloride | Potassium Chloride | 31 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 30 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 30 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 30 | suppressed |
| Xarelto | Rivaroxaban | 30 | suppressed |
| Mirtazapine | Mirtazapine | 27 | suppressed |
| Cephalexin | Cephalexin | 26 | 23 |
| Levocetirizine Dihydrochloride | Levocetirizine Dihydrochloride | 25 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 23 | suppressed |
| Linzess | Linaclotide | 22 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 22 | suppressed |
| Nifedipine Er | Nifedipine | 22 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 22 | suppressed |
| Ramipril | Ramipril | 22 | suppressed |
| Glimepiride | Glimepiride | 21 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 20 | suppressed |
| Lactulose | Lactulose | 19 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 17 | 15 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 17 | suppressed |
| Chlorthalidone | Chlorthalidone | 15 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 15 | suppressed |
| Clobetasol Propionate | Clobetasol Propionate | 15 | suppressed |
| Fenofibrate | Fenofibrate | 15 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 15 | suppressed |
| Methocarbamol | Methocarbamol | 15 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 14 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 14 | suppressed |
| Estradiol | Estradiol | 14 | suppressed |
| Premarin | Estrogens, Conjugated | 14 | suppressed |
| Simvastatin | Simvastatin | 14 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 13 | suppressed |
| Irbesartan-Hydrochlorothiazide | Irbesartan/Hydrochlorothiazide | 13 | suppressed |
| Phenobarbital | Phenobarbital | 13 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 13 | suppressed |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 12 | suppressed |
| Bisoprolol-Hydrochlorothiazide | Bisoprolol/Hydrochlorothiazide | 12 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 12 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 12 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 12 | suppressed |
| Verapamil Sr | Verapamil Hcl | 12 | suppressed |
| Janumet | Sitagliptin Phos/Metformin Hcl | 11 | suppressed |
| Meloxicam | Meloxicam | 11 | suppressed |
| Nystop | Nystatin | 11 | suppressed |
| Telmisartan | Telmisartan | 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 | $216.48 · 10 records | GlaxoSmithKline, LLC. | AMS 700, AREXVY, BREZTRI, CAPLYTA, QULIPTA, SHINGRIX, TRELEGY ELLIPTA, UBRELVY, XIFAXAN | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Trelegy Ellipta 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