Payment overview · 2025
General Payments
$195.27
9 reported records · 6 companies
Healthcare provider profile · identity verified
Larry C Buck, DO
Allopathic & Osteopathic Physicians|Internal Medicine · FERGUSON, MO · NPI 1851749139
Verified facts
What the public records show
CMS Open Payments records show Larry C Buck, DO received $195.27 in general payments during 2025 across 9 reported records.
Exact Sciences Corporation accounted for 34.9% 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: Eliquis, Ozempic, Rybelsus.
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 48 claims for Farxiga 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 75 claims for Eliquis 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 63 claims for Jardiance 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 39 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 50 claims for Rybelsus 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 75 claims for Eliquis 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 |
|---|---|---|---|---|---|
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $68.08 | 34.9% | 3 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $42.40 | 21.7% | 2 | 2025 |
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $31.95 | 16.4% | 1 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $22.77 | 11.7% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $15.32 | 7.8% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $14.75 | 7.5% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $195.27 | 9 |
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 |
|---|---|---|---|---|---|
| Cologuard Collection Kit Normalized: cologuard collection kit |
Device | Exact Sciences Corporation | $48.54 | 2 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $42.40 | 2 | 2025 |
Source payment records
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| ZEPBOUND Normalized: zepbound |
Drug | Lilly USA, LLC | $42.40 | 2 | 2025 |
Source payment records
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| ELIQUIS Normalized: eliquis |
Drug | E.R. Squibb & Sons, L.L.C. | $31.95 | 1 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $22.77 | 1 | 2025 |
Source payment records
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| Rybelsus Normalized: rybelsus |
Drug | Novo Nordisk Inc | $22.77 | 1 | 2025 |
Source payment records
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| The Cologuard Plus Collection Kit Normalized: the cologuard plus collection kit |
Device | Exact Sciences Corporation | $19.54 | 1 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $15.32 | 1 | 2025 |
Source payment records
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| PREVNAR 20 Normalized: prevnar 20 |
Biological | PFIZER INC. | $14.75 | 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 |
|---|---|---|---|---|---|---|
| ELIQUIS eliquis |
2025 | Eliquis | 2024 | 75 | exact normalized | Medicare Part D |
| Ozempic ozempic |
2025 | Ozempic | 2024 | 39 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Rybelsus rybelsus |
2025 | Rybelsus | 2024 | 50 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 |
|---|---|---|---|---|---|---|
| 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 |
48 | 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 |
75 | 15 |
| 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 |
63 | 19 |
| 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 |
39 | suppressed by CMS |
| Novo Nordisk Inc Exact reporting entity; no affiliate inference |
2025 | Rybelsus open payments reported associated product |
CMS Open Payments — General Payments 161257 supporting records · 55409 recipient NPIs · example record 1188130076 |
Rybelsus · 2024 Exact normalized brand match · 1 Part D row |
50 | 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 |
75 | 15 |
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 | 453 | 143 |
| Atorvastatin Calcium | Atorvastatin Calcium | 417 | 127 |
| Losartan Potassium | Losartan Potassium | 386 | 109 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 304 | 100 |
| Metformin Hcl | Metformin Hcl | 238 | 72 |
| Gabapentin | Gabapentin | 211 | 64 |
| Lisinopril | Lisinopril | 208 | 62 |
| Hydrochlorothiazide | Hydrochlorothiazide | 154 | 44 |
| Metoprolol Succinate | Metoprolol Succinate | 150 | 48 |
| Carvedilol | Carvedilol | 135 | 47 |
| Furosemide | Furosemide | 130 | 49 |
| Tamsulosin Hcl | Tamsulosin Hcl | 129 | 46 |
| Nifedipine Er | Nifedipine | 127 | 43 |
| Allopurinol | Allopurinol | 124 | 39 |
| Tizanidine Hcl | Tizanidine Hcl | 117 | 39 |
| Duloxetine Hcl | Duloxetine Hcl | 108 | 42 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 103 | 35 |
| Hydralazine Hcl | Hydralazine Hcl | 101 | 32 |
| Chlorthalidone | Chlorthalidone | 92 | 23 |
| Pravastatin Sodium | Pravastatin Sodium | 90 | 28 |
| Famotidine | Famotidine | 87 | 27 |
| Diclofenac Sodium | Diclofenac Sodium | 83 | 51 |
| Fluticasone Propionate | Fluticasone Propionate | 76 | 35 |
| Eliquis | Apixaban | 75 | 15 |
| Methylprednisolone | Methylprednisolone | 75 | 62 |
| Spironolactone | Spironolactone | 73 | 24 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 71 | 17 |
| Glipizide | Glipizide | 70 | 23 |
| Naproxen | Naproxen | 65 | 23 |
| Tramadol Hcl | Tramadol Hcl | 65 | 15 |
| Jardiance | Empagliflozin | 63 | 19 |
| Omeprazole | Omeprazole | 63 | 21 |
| Alprazolam | Alprazolam | 61 | 15 |
| Levothyroxine Sodium | Levothyroxine Sodium | 61 | 15 |
| Ezetimibe | Ezetimibe | 59 | 18 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 57 | 14 |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 55 | 17 |
| Pantoprazole Sodium | Pantoprazole Sodium | 51 | 28 |
| Rybelsus | Semaglutide | 50 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 48 | 15 |
| Farxiga | Dapagliflozin Propanediol | 48 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 47 | 27 |
| Ozempic | Semaglutide | 39 | suppressed |
| Potassium Chloride | Potassium Chloride | 39 | 12 |
| Montelukast Sodium | Montelukast Sodium | 35 | suppressed |
| Labetalol Hcl | Labetalol Hcl | 34 | suppressed |
| Tradjenta | Linagliptin | 32 | suppressed |
| Valsartan | Valsartan | 32 | 14 |
| Pregabalin | Pregabalin | 31 | 12 |
| Simvastatin | Simvastatin | 29 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 28 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 28 | suppressed |
| Ibuprofen | Ibuprofen | 27 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 27 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 27 | suppressed |
| Arexvy | Rsvpref3 Antigen/As01e/Pf | 26 | 26 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 26 | suppressed |
| Glimepiride | Glimepiride | 25 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 25 | suppressed |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 25 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 24 | suppressed |
| Entresto | Sacubitril/Valsartan | 24 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 24 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 24 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 23 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 23 | suppressed |
| Atenolol | Atenolol | 22 | suppressed |
| Folic Acid | Folic Acid | 22 | 11 |
| Repaglinide | Repaglinide | 22 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 22 | suppressed |
| Tolterodine Tartrate Er | Tolterodine Tartrate | 20 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 19 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 19 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 18 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 18 | suppressed |
| Finasteride | Finasteride | 17 | suppressed |
| Ketoconazole | Ketoconazole | 17 | suppressed |
| Meloxicam | Meloxicam | 17 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 17 | 14 |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 16 | suppressed |
| Baclofen | Baclofen | 16 | suppressed |
| Glipizide Er | Glipizide | 16 | suppressed |
| Lorazepam | Lorazepam | 16 | suppressed |
| Metronidazole | Metronidazole | 16 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 16 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 15 | suppressed |
| Prednisone | Prednisone | 15 | 11 |
| Tramadol Hcl-Acetaminophen | Tramadol Hcl/Acetaminophen | 15 | suppressed |
| Azithromycin | Azithromycin | 14 | 14 |
| Celecoxib | Celecoxib | 14 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 14 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 14 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 13 | suppressed |
| Desvenlafaxine Succinate Er | Desvenlafaxine Succinate | 13 | suppressed |
| Alcohol Swabs | Alcohol Antiseptic Pads | 12 | suppressed |
| Flunisolide | Flunisolide | 12 | suppressed |
| Levetiracetam | Levetiracetam | 12 | suppressed |
| Mirtazapine | Mirtazapine | 12 | suppressed |
| Naltrexone Hcl | Naltrexone Hcl | 12 | suppressed |
| Nitroglycerin | Nitroglycerin | 12 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 12 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 12 | suppressed |
| Varenicline Tartrate | Varenicline Tartrate | 12 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 12 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 11 | 11 |
| Atenolol-Chlorthalidone | Atenolol/Chlorthalidone | 11 | suppressed |
| Cilostazol | Cilostazol | 11 | suppressed |
| Januvia | Sitagliptin Phosphate | 11 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 11 | suppressed |
| Lovastatin | Lovastatin | 11 | suppressed |
| Mesalamine | Mesalamine | 11 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 11 | suppressed |
| Semglee (Yfgn) Pen | Insulin Glargine-Yfgn | 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 | $195.27 · 9 records | Exact Sciences Corporation | AIRSUPRA, Cologuard Collection Kit, ELIQUIS, MOUNJARO, Ozempic, PREVNAR 20, Rybelsus, The Cologuard Plus Collection Kit, ZEPBOUND | 6 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Eliquis play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with AstraZeneca Pharmaceuticals LP?
- 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