Payment overview · 2025
General Payments
$548.16
24 reported records · 14 companies
Healthcare provider profile · identity verified
Mark Blackwelder, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · RUSTON, LA · NPI 1245200880
Verified facts
What the public records show
CMS Open Payments records show Mark Blackwelder, M.D. received $548.16 in general payments during 2025 across 24 reported records.
Corcept Therapeutics accounted for 27.9% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 14 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Ozempic.
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 35 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 20 claims for Synthroid 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 24 claims for Trelegy Ellipta by this doctor in 2024.
Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 65 claims for Jardiance by this doctor in 2024.
Lilly USA, 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Mounjaro by this doctor in 2024.
Lilly USA, 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 71 claims for Trulicity by this doctor in 2024.
Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 99 claims for Ozempic by this doctor in 2024.
SANOFI-AVENTIS U.S. 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 LANTUS as an associated drug or biological on 12 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Lantus 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 |
|---|---|---|---|---|---|
| Corcept Therapeutics | Unresolved — no canonical attribution shown | $152.75 | 27.9% | 6 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $76.33 | 13.9% | 3 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $59.03 | 10.8% | 3 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $45.00 | 8.2% | 1 | 2025 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | Unresolved — no canonical attribution shown | $31.94 | 5.8% | 2 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $28.38 | 5.2% | 1 | 2025 |
| Insulet Corporation | Unresolved — no canonical attribution shown | $26.20 | 4.8% | 1 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $21.96 | 4.0% | 1 | 2025 |
| ABIOMED | Unresolved — no canonical attribution shown | $19.47 | 3.5% | 1 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $19.12 | 3.5% | 1 | 2025 |
| Dexcom, Inc. | Unresolved — no canonical attribution shown | $18.51 | 3.4% | 1 | 2025 |
| SANOFI-AVENTIS U.S. LLC | Unresolved — no canonical attribution shown | $18.38 | 3.4% | 1 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $17.22 | 3.1% | 1 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $13.87 | 2.5% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $503.16 | 23 |
| Education | $45.00 | 1 |
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 |
|---|---|---|---|---|---|
| Korlym Normalized: korlym |
Drug | Corcept Therapeutics | $152.75 | 6 | 2025 |
Source payment records
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| VRAYLAR Normalized: vraylar |
Drug | ABBVIE INC. | $76.33 | 3 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $59.03 | 3 | 2025 |
Source payment records
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| CAPLYTA Normalized: caplyta |
Drug | ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | $31.94 | 2 | 2025 |
Source payment records
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| Kerendia Normalized: kerendia |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $28.38 | 1 | 2025 |
Source payment records
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| Omnipod Normalized: omnipod |
Device | Insulet Corporation | $26.20 | 1 | 2025 |
Source payment records
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| Rybelsus Normalized: rybelsus |
Drug | Novo Nordisk Inc | $24.16 | 1 | 2025 |
Source payment records
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| FREESTYLE LIBRE 3 Normalized: freestyle libre 3 |
Device | Abbott Laboratories | $21.96 | 1 | 2025 |
Source payment records
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| SHINGRIX Normalized: shingrix |
Biological | GlaxoSmithKline, LLC. | $19.12 | 1 | 2025 |
Source payment records
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| Dexcom G6 Transmitter Normalized: dexcom g6 transmitter |
Medical Supply | Dexcom, Inc. | $18.51 | 1 | 2025 |
Source payment records
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| TZIELD Normalized: tzield |
Biological | SANOFI-AVENTIS U.S. LLC | $18.38 | 1 | 2025 |
Source payment records
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| CAPVAXIVE Normalized: capvaxive |
Biological | Merck Sharp & Dohme LLC | $17.22 | 1 | 2025 |
Source payment records
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| GARDASIL 9 Normalized: gardasil 9 |
Biological | Merck Sharp & Dohme LLC | $17.22 | 1 | 2025 |
Source payment records
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| XIFAXAN Normalized: xifaxan |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $13.87 | 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 |
|---|---|---|---|---|---|---|
| Ozempic ozempic |
2025 | Ozempic | 2024 | 99 | 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 |
35 | 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 |
20 | 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 |
24 | suppressed by CMS |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | JARDIANCE open payments reported associated product |
CMS Open Payments — General Payments 47708 supporting records · 23833 recipient NPIs · example record 1186464557 |
Jardiance · 2024 Exact normalized brand match · 1 Part D row |
65 | 12 |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | MOUNJARO open payments reported associated product |
CMS Open Payments — General Payments 186719 supporting records · 66436 recipient NPIs · example record 1186464455 |
Mounjaro · 2024 Exact normalized brand match · 1 Part D row |
61 | suppressed by CMS |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | TRULICITY open payments reported associated product |
CMS Open Payments — General Payments 71 supporting records · 57 recipient NPIs · example record 1186464601 |
Trulicity · 2024 Exact normalized brand match · 1 Part D row |
71 | suppressed by CMS |
| Novo Nordisk Inc Exact reporting entity; no affiliate inference |
2025 | Ozempic open payments reported associated product |
CMS Open Payments — General Payments 261625 supporting records · 77793 recipient NPIs · example record 1188130076 |
Ozempic · 2024 Exact normalized brand match · 1 Part D row |
99 | 16 |
| SANOFI-AVENTIS U.S. LLC Exact reporting entity; no affiliate inference |
2025 | LANTUS open payments reported associated product |
CMS Open Payments — General Payments 12 supporting records · 11 recipient NPIs · example record 1233196856 |
Lantus · 2024 Exact normalized brand match · 1 Part D row |
20 | 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 |
|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 418 | 79 |
| Pantoprazole Sodium | Pantoprazole Sodium | 354 | 69 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 336 | 69 |
| Atorvastatin Calcium | Atorvastatin Calcium | 326 | 72 |
| Farxiga | Dapagliflozin Propanediol | 319 | 47 |
| Amlodipine Besylate | Amlodipine Besylate | 296 | 60 |
| Metformin Hcl Er | Metformin Hcl | 231 | 48 |
| Simvastatin | Simvastatin | 208 | 44 |
| Hydrochlorothiazide | Hydrochlorothiazide | 182 | 45 |
| Gabapentin | Gabapentin | 177 | 37 |
| Valsartan | Valsartan | 173 | 33 |
| Clonazepam | Clonazepam | 145 | 20 |
| Losartan Potassium | Losartan Potassium | 144 | 35 |
| Metoprolol Succinate | Metoprolol Succinate | 141 | 30 |
| Potassium Chloride | Potassium Chloride | 136 | 39 |
| Furosemide | Furosemide | 134 | 35 |
| Ramipril | Ramipril | 127 | 27 |
| Lisinopril | Lisinopril | 118 | 26 |
| Metformin Hcl | Metformin Hcl | 117 | 26 |
| Metoprolol Tartrate | Metoprolol Tartrate | 109 | 24 |
| Tamsulosin Hcl | Tamsulosin Hcl | 109 | 21 |
| Xigduo Xr | Dapaglifloz Propaned/Metformin | 100 | 15 |
| Eliquis | Apixaban | 99 | 20 |
| Ozempic | Semaglutide | 99 | 16 |
| Nifedipine Er | Nifedipine | 98 | 25 |
| Propranolol Hcl | Propranolol Hcl | 93 | 14 |
| Allopurinol | Allopurinol | 91 | 17 |
| Celecoxib | Celecoxib | 88 | 20 |
| Omeprazole | Omeprazole | 88 | 20 |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 82 | 13 |
| Clopidogrel | Clopidogrel Bisulfate | 79 | 13 |
| Fluticasone Propionate | Fluticasone Propionate | 75 | 31 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 73 | 14 |
| Trulicity | Dulaglutide | 71 | suppressed |
| Jardiance | Empagliflozin | 65 | 12 |
| Spironolactone | Spironolactone | 62 | 14 |
| Mounjaro | Tirzepatide | 61 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 61 | suppressed |
| Atenolol | Atenolol | 57 | suppressed |
| Azithromycin | Azithromycin | 49 | 39 |
| Mirtazapine | Mirtazapine | 49 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 49 | 12 |
| Duloxetine Hcl | Duloxetine Hcl | 48 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 48 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 40 | 12 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 39 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 36 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 35 | suppressed |
| Linzess | Linaclotide | 35 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 34 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 33 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 33 | suppressed |
| Chlorthalidone | Chlorthalidone | 32 | suppressed |
| Memantine Hcl | Memantine Hcl | 32 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 31 | suppressed |
| Finasteride | Finasteride | 31 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 30 | suppressed |
| Pregabalin | Pregabalin | 30 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 30 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 29 | suppressed |
| Glimepiride | Glimepiride | 29 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 28 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 28 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 28 | suppressed |
| Prednisone | Prednisone | 28 | suppressed |
| Nateglinide | Nateglinide | 27 | suppressed |
| Liothyronine Sodium | Liothyronine Sodium | 26 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 25 | 22 |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 25 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 24 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 23 | 18 |
| Levetiracetam | Levetiracetam | 23 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 23 | suppressed |
| Tresiba Flextouch U-200 | Insulin Degludec | 23 | suppressed |
| Sotalol | Sotalol Hcl | 22 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 21 | suppressed |
| Entresto | Sacubitril/Valsartan | 21 | suppressed |
| Fenofibrate | Fenofibrate | 21 | suppressed |
| Multaq | Dronedarone Hcl | 21 | suppressed |
| Carvedilol | Carvedilol | 20 | suppressed |
| Ezetimibe | Ezetimibe | 20 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 20 | 14 |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 20 | suppressed |
| Synthroid | Levothyroxine Sodium | 20 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 19 | suppressed |
| Fluconazole | Fluconazole | 17 | 11 |
| Verapamil Er | Verapamil Hcl | 17 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 16 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 16 | suppressed |
| Benazepril Hcl | Benazepril Hcl | 15 | suppressed |
| Clonidine | Clonidine | 15 | suppressed |
| Invokana | Canagliflozin | 15 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 15 | suppressed |
| Nebivolol Hcl | Nebivolol Hcl | 15 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 15 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 15 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 14 | suppressed |
| Droplet Pen Needle | Pen Needle, Diabetic | 14 | suppressed |
| Eszopiclone | Eszopiclone | 14 | suppressed |
| Bisoprolol-Hydrochlorothiazide | Bisoprolol/Hydrochlorothiazide | 13 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 13 | suppressed |
| Diltiazem 24hr Er (Xr) | Diltiazem Hcl | 13 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 13 | suppressed |
| Januvia | Sitagliptin Phosphate | 13 | suppressed |
| Brilinta | Ticagrelor | 12 | suppressed |
| Dexlansoprazole Dr | Dexlansoprazole | 12 | suppressed |
| Estradiol | Estradiol | 12 | suppressed |
| Novolin 70-30 | Insulin Nph Hum/Reg Insulin Hm | 12 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 12 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 12 | suppressed |
| Aptiom | Eslicarbazepine Acetate | 11 | suppressed |
| Dexilant | Dexlansoprazole | 11 | suppressed |
| Lansoprazole | Lansoprazole | 11 | suppressed |
| Levofloxacin | Levofloxacin | 11 | 11 |
| Meloxicam | Meloxicam | 11 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 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 | $548.16 · 24 records | Corcept Therapeutics | CAPLYTA, CAPVAXIVE, Dexcom G6 Transmitter, FREESTYLE LIBRE 3, GARDASIL 9, Kerendia, Korlym, Omnipod, Ozempic, Rybelsus, SHINGRIX, TZIELD, VRAYLAR, XIFAXAN | 8 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Ozempic 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