Payment overview · 2025
General Payments
$263.79
12 reported records · 7 companies
Healthcare provider profile · identity verified
Michael W Carnahan, MD
Allopathic & Osteopathic Physicians|Family Medicine · ARDMORE, OK · NPI 1871607903
Verified facts
What the public records show
CMS Open Payments records show Michael W Carnahan, MD received $263.79 in general payments during 2025 across 12 reported records.
ABBVIE INC. accounted for 33.1% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 11 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Kerendia, Mounjaro, 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 29 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 30 claims for Synthroid 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 VIBERZI as an associated drug or biological on 11354 records involving 5020 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Viberzi 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 150 claims for Farxiga by this doctor in 2024.
Bayer Healthcare 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 Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Kerendia 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 31 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 33 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 19 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 63 claims for Ozempic 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 |
|---|---|---|---|---|---|
| ABBVIE INC. | Unresolved — no canonical attribution shown | $87.30 | 33.1% | 4 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $66.49 | 25.2% | 3 | 2025 |
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $44.46 | 16.9% | 1 | 2025 |
| Tactile Systems Technology Inc | Unresolved — no canonical attribution shown | $20.66 | 7.8% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $16.33 | 6.2% | 1 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $14.35 | 5.4% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $14.20 | 5.4% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $263.79 | 12 |
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 | $66.49 | 3 | 2025 |
Source payment records
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| Rybelsus Normalized: rybelsus |
Drug | Novo Nordisk Inc | $66.49 | 3 | 2025 |
Source payment records
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| VRAYLAR Normalized: vraylar |
Drug | ABBVIE INC. | $54.10 | 3 | 2025 |
Source payment records
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| Intracept Normalized: intracept |
Device | Boston Scientific Corporation | $44.46 | 1 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $33.20 | 1 | 2025 |
Source payment records
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| Flexitouch Plus Normalized: flexitouch plus |
Device | Tactile Systems Technology Inc | $20.66 | 1 | 2025 |
Source payment records
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| Nimbl Normalized: nimbl |
Device | Tactile Systems Technology Inc | $20.66 | 1 | 2025 |
Source payment records
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| FARXIGA Normalized: farxiga |
Drug | AstraZeneca Pharmaceuticals LP | $16.33 | 1 | 2025 |
Source payment records
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| Kerendia Normalized: kerendia |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $14.35 | 1 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $14.20 | 1 | 2025 |
Source payment records
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| ZEPBOUND Normalized: zepbound |
Drug | Lilly USA, LLC | $14.20 | 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 |
|---|---|---|---|---|---|---|
| FARXIGA farxiga |
2025 | Farxiga | 2024 | 150 | exact normalized | Medicare Part D |
| Kerendia kerendia |
2025 | Kerendia | 2024 | 24 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| MOUNJARO mounjaro |
2025 | Mounjaro | 2024 | 33 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Ozempic ozempic |
2025 | Ozempic | 2024 | 63 | 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 |
29 | 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 |
30 | suppressed by CMS |
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | VIBERZI open payments reported associated product |
CMS Open Payments — General Payments 11354 supporting records · 5020 recipient NPIs · example record 1201352948 |
Viberzi · 2024 Exact normalized brand match · 1 Part D row |
14 | suppressed by CMS |
| 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 |
150 | 47 |
| Bayer Healthcare Pharmaceuticals Inc. Exact reporting entity; no affiliate inference |
2025 | Kerendia open payments reported associated product |
CMS Open Payments — General Payments 138674 supporting records · 48458 recipient NPIs · example record 1225434663 |
Kerendia · 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 |
31 | suppressed by CMS |
| 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 |
33 | 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 |
19 | 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 |
63 | 14 |
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 |
|---|---|---|---|
| Simvastatin | Simvastatin | 353 | 96 |
| Levothyroxine Sodium | Levothyroxine Sodium | 345 | 89 |
| Amlodipine Besylate | Amlodipine Besylate | 287 | 85 |
| Clonazepam | Clonazepam | 223 | 41 |
| Losartan Potassium | Losartan Potassium | 220 | 57 |
| Meloxicam | Meloxicam | 204 | 61 |
| Omeprazole | Omeprazole | 192 | 54 |
| Atorvastatin Calcium | Atorvastatin Calcium | 191 | 56 |
| Lisinopril | Lisinopril | 189 | 56 |
| Pantoprazole Sodium | Pantoprazole Sodium | 187 | 58 |
| Metformin Hcl | Metformin Hcl | 185 | 50 |
| Tramadol Hcl | Tramadol Hcl | 181 | 52 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 168 | 55 |
| Potassium Chloride | Potassium Chloride | 168 | 47 |
| Farxiga | Dapagliflozin Propanediol | 150 | 47 |
| Tamsulosin Hcl | Tamsulosin Hcl | 141 | 40 |
| Carvedilol | Carvedilol | 139 | 41 |
| Gabapentin | Gabapentin | 136 | 40 |
| Metoprolol Succinate | Metoprolol Succinate | 136 | 39 |
| Hydrochlorothiazide | Hydrochlorothiazide | 133 | 37 |
| Furosemide | Furosemide | 131 | 44 |
| Trazodone Hcl | Trazodone Hcl | 122 | 36 |
| Eliquis | Apixaban | 115 | 30 |
| Allopurinol | Allopurinol | 111 | 29 |
| Fluoxetine Hcl | Fluoxetine Hcl | 111 | 32 |
| Alprazolam | Alprazolam | 100 | 27 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 92 | 29 |
| Enalapril Maleate | Enalapril Maleate | 90 | 22 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 84 | 18 |
| Prednisone | Prednisone | 83 | 44 |
| Metoprolol Tartrate | Metoprolol Tartrate | 77 | 15 |
| Duloxetine Hcl | Duloxetine Hcl | 71 | 19 |
| Dicyclomine Hcl | Dicyclomine Hcl | 69 | 23 |
| Lorazepam | Lorazepam | 68 | 13 |
| Atenolol | Atenolol | 64 | 16 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 63 | 22 |
| Ozempic | Semaglutide | 63 | 14 |
| Torsemide | Torsemide | 62 | 16 |
| Methylprednisolone | Methylprednisolone | 61 | 55 |
| Sertraline Hcl | Sertraline Hcl | 61 | 16 |
| Clopidogrel | Clopidogrel Bisulfate | 60 | 21 |
| Zolpidem Tartrate | Zolpidem Tartrate | 59 | 16 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 58 | 15 |
| Pregabalin | Pregabalin | 56 | 12 |
| Montelukast Sodium | Montelukast Sodium | 55 | 17 |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 53 | 17 |
| Fluticasone Propionate | Fluticasone Propionate | 53 | 22 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 47 | 13 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 46 | 29 |
| Doxycycline Hyclate | Doxycycline Hyclate | 45 | 39 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 45 | 11 |
| Mirtazapine | Mirtazapine | 44 | 18 |
| Sucralfate | Sucralfate | 44 | 14 |
| Azithromycin | Azithromycin | 43 | 34 |
| Bupropion Xl | Bupropion Hcl | 42 | 12 |
| Pravastatin Sodium | Pravastatin Sodium | 41 | 11 |
| Estradiol | Estradiol | 37 | 13 |
| Donepezil Hcl | Donepezil Hcl | 35 | 12 |
| Tizanidine Hcl | Tizanidine Hcl | 35 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 34 | suppressed |
| Mounjaro | Tirzepatide | 33 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 33 | 11 |
| Eszopiclone | Eszopiclone | 32 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 31 | 13 |
| Jardiance | Empagliflozin | 31 | suppressed |
| Synthroid | Levothyroxine Sodium | 30 | suppressed |
| Celecoxib | Celecoxib | 29 | 12 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 29 | 13 |
| Linzess | Linaclotide | 29 | suppressed |
| Myrbetriq | Mirabegron | 29 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 28 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 28 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 28 | suppressed |
| Morphine Sulfate Er | Morphine Sulfate | 28 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 28 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 27 | 24 |
| Baclofen | Baclofen | 26 | 15 |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 26 | suppressed |
| Januvia | Sitagliptin Phosphate | 26 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 26 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 26 | 11 |
| Xarelto | Rivaroxaban | 26 | suppressed |
| Nebivolol Hcl | Nebivolol Hcl | 25 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 25 | suppressed |
| Breztri Aerosphere | Budesonide/Glycopyr/Formoterol | 24 | suppressed |
| Colchicine | Colchicine | 24 | suppressed |
| Kerendia | Finerenone | 24 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 24 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 24 | suppressed |
| Spironolactone | Spironolactone | 24 | suppressed |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 23 | suppressed |
| Ibuprofen | Ibuprofen | 23 | suppressed |
| Midodrine Hcl | Midodrine Hcl | 23 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 23 | suppressed |
| Lactulose | Lactulose | 22 | 13 |
| Ondansetron Odt | Ondansetron | 21 | 11 |
| Testosterone Cypionate | Testosterone Cypionate | 21 | 12 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 20 | suppressed |
| Megestrol Acetate | Megestrol Acetate | 20 | suppressed |
| Memantine Hcl | Memantine Hcl | 20 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 19 | suppressed |
| Trulicity | Dulaglutide | 19 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 19 | suppressed |
| Irbesartan | Irbesartan | 18 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 17 | suppressed |
| Chlorthalidone | Chlorthalidone | 17 | suppressed |
| Janumet | Sitagliptin Phos/Metformin Hcl | 17 | suppressed |
| Lansoprazole | Lansoprazole | 17 | suppressed |
| Mupirocin | Mupirocin | 17 | suppressed |
| Praluent Pen | Alirocumab | 17 | suppressed |
| Buprenorphine-Naloxone | Buprenorphine Hcl/Naloxone Hcl | 16 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 16 | suppressed |
| Invokana | Canagliflozin | 16 | suppressed |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 15 | suppressed |
| Dextroamphetamine-Amphet Er | Dextroamphetamine/Amphetamine | 15 | suppressed |
| Dextroamphetamine-Amphetamine | Dextroamphetamine/Amphetamine | 15 | suppressed |
| Ezetimibe | Ezetimibe | 15 | suppressed |
| Fenofibrate | Fenofibrate | 15 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 15 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 15 | suppressed |
| Toujeo Max Solostar | Insulin Glargine,hum.Rec.Anlog | 15 | suppressed |
| Tresiba Flextouch U-100 | Insulin Degludec | 15 | suppressed |
| Valsartan | Valsartan | 15 | suppressed |
| Varenicline Tartrate | Varenicline Tartrate | 15 | suppressed |
| Dutasteride | Dutasteride | 14 | suppressed |
| Famciclovir | Famciclovir | 14 | suppressed |
| Lovastatin | Lovastatin | 14 | suppressed |
| Viberzi | Eluxadoline | 14 | suppressed |
| Cephalexin | Cephalexin | 13 | 12 |
| Clonidine Hcl | Clonidine Hcl | 13 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 13 | suppressed |
| Topiramate | Topiramate | 13 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 12 | suppressed |
| Belbuca | Buprenorphine Hcl | 12 | suppressed |
| Cyanocobalamin Injection | Cyanocobalamin (Vitamin B-12) | 12 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 12 | suppressed |
| Prolia | Denosumab | 12 | suppressed |
| Aripiprazole | Aripiprazole | 11 | suppressed |
| Azathioprine | Azathioprine | 11 | suppressed |
| Benazepril Hcl | Benazepril Hcl | 11 | suppressed |
| Carisoprodol | Carisoprodol | 11 | suppressed |
| Cimetidine | Cimetidine | 11 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 11 | suppressed |
| Finasteride | Finasteride | 11 | suppressed |
| Gentamicin Sulfate | Gentamicin Sulfate | 11 | suppressed |
| Temazepam | Temazepam | 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 | $263.79 · 12 records | ABBVIE INC. | FARXIGA, Flexitouch Plus, Intracept, Kerendia, MOUNJARO, Nimbl, Ozempic, QULIPTA, Rybelsus, VRAYLAR, ZEPBOUND | 9 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Farxiga 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