Payment overview · 2025
General Payments
$302.36
17 reported records · 8 companies
Healthcare provider profile · identity verified
Charles Anthony Gerk, M.D.
Allopathic & Osteopathic Physicians|Family Medicine · STERLING, CO · NPI 1194992768
Verified facts
What the public records show
CMS Open Payments records show Charles Anthony Gerk, M.D. received $302.36 in general payments during 2025 across 17 reported records.
Otsuka America Pharmaceutical, Inc. accounted for 24.3% 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: Mounjaro.
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 46 claims for Farxiga 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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Symbicort 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 16 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 22 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 33 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 26 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 |
|---|---|---|---|---|---|
| Otsuka America Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $73.49 | 24.3% | 3 | 2025 |
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $67.25 | 22.2% | 4 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $59.58 | 19.7% | 4 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $30.51 | 10.1% | 2 | 2025 |
| Radius Health, Inc. | Unresolved — no canonical attribution shown | $19.58 | 6.5% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $18.44 | 6.1% | 1 | 2025 |
| Inspire Medical Systems, Inc. | Unresolved — no canonical attribution shown | $17.44 | 5.8% | 1 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $16.07 | 5.3% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $302.36 | 17 |
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 |
|---|---|---|---|---|---|
| REXULTI Normalized: rexulti |
Drug | Otsuka America Pharmaceutical, Inc. | $73.49 | 3 | 2025 |
Source payment records
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| Cologuard Collection Kit Normalized: cologuard collection kit |
Device | Exact Sciences Corporation | $67.25 | 4 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $59.58 | 4 | 2025 |
Source payment records
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| ZEPBOUND Normalized: zepbound |
Drug | Lilly USA, LLC | $31.02 | 2 | 2025 |
Source payment records
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| EVENITY Normalized: evenity |
Biological | Amgen Inc. | $30.51 | 2 | 2025 |
Source payment records
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| PROLIA Normalized: prolia |
Biological | Amgen Inc. | $30.51 | 2 | 2025 |
Source payment records
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| Tymlos Normalized: tymlos |
Drug | Radius Health, Inc. | $19.58 | 1 | 2025 |
Source payment records
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| INSPIRE Normalized: inspire |
Device | Inspire Medical Systems, Inc. | $17.44 | 1 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $16.07 | 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 |
|---|---|---|---|---|---|---|
| MOUNJARO mounjaro |
2025 | Mounjaro | 2024 | 22 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 |
46 | suppressed by CMS |
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | SYMBICORT open payments reported associated product |
CMS Open Payments — General Payments 71 supporting records · 51 recipient NPIs · example record 1206132610 |
Symbicort · 2024 Exact normalized brand match · 1 Part D row |
11 | 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 |
16 | 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 |
22 | 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 |
33 | 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 |
26 | 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 | 195 | 38 |
| Atorvastatin Calcium | Atorvastatin Calcium | 179 | 48 |
| Omeprazole | Omeprazole | 121 | 38 |
| Losartan Potassium | Losartan Potassium | 119 | 33 |
| Furosemide | Furosemide | 116 | 16 |
| Potassium Chloride | Potassium Chloride | 115 | 19 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 97 | 33 |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 91 | 18 |
| Tamsulosin Hcl | Tamsulosin Hcl | 86 | 28 |
| Metformin Hcl | Metformin Hcl | 82 | 23 |
| Amlodipine Besylate | Amlodipine Besylate | 81 | 21 |
| Gabapentin | Gabapentin | 76 | 15 |
| Lisinopril | Lisinopril | 75 | 20 |
| Eliquis | Apixaban | 68 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 62 | 13 |
| Allopurinol | Allopurinol | 58 | 13 |
| Spironolactone | Spironolactone | 57 | 11 |
| Pantoprazole Sodium | Pantoprazole Sodium | 54 | 11 |
| Carvedilol | Carvedilol | 50 | suppressed |
| Simvastatin | Simvastatin | 47 | 14 |
| Warfarin Sodium | Warfarin Sodium | 47 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 46 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 45 | suppressed |
| Celecoxib | Celecoxib | 44 | 11 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 43 | 13 |
| Hydrochlorothiazide | Hydrochlorothiazide | 42 | 15 |
| Montelukast Sodium | Montelukast Sodium | 40 | suppressed |
| Prednisone | Prednisone | 38 | 15 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 37 | suppressed |
| Enalapril Maleate | Enalapril Maleate | 37 | 12 |
| Metoprolol Succinate | Metoprolol Succinate | 36 | 12 |
| Synjardy Xr | Empagliflozin/Metformin Hcl | 36 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 35 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 33 | suppressed |
| Trulicity | Dulaglutide | 33 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 31 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 30 | suppressed |
| Famotidine | Famotidine | 30 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 30 | suppressed |
| Xarelto | Rivaroxaban | 30 | suppressed |
| Xigduo Xr | Dapaglifloz Propaned/Metformin | 30 | suppressed |
| Glipizide | Glipizide | 29 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 28 | 12 |
| Sumatriptan Succinate | Sumatriptan Succinate | 28 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 28 | suppressed |
| Ozempic | Semaglutide | 26 | suppressed |
| Synthroid | Levothyroxine Sodium | 25 | suppressed |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 24 | suppressed |
| Finasteride | Finasteride | 23 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 22 | suppressed |
| Liothyronine Sodium | Liothyronine Sodium | 22 | suppressed |
| Mounjaro | Tirzepatide | 22 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 22 | suppressed |
| Lorazepam | Lorazepam | 21 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 21 | suppressed |
| Synjardy | Empagliflozin/Metformin Hcl | 21 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 21 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 20 | suppressed |
| Advair Hfa | Fluticasone Propion/Salmeterol | 19 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 19 | suppressed |
| Lidocaine-Prilocaine | Lidocaine/Prilocaine | 19 | suppressed |
| Clobetasol Propionate | Clobetasol Propionate | 18 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 18 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 17 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 17 | suppressed |
| Mirtazapine | Mirtazapine | 17 | suppressed |
| Azithromycin | Azithromycin | 16 | 13 |
| Benazepril Hcl | Benazepril Hcl | 16 | suppressed |
| Breztri Aerosphere | Budesonide/Glycopyr/Formoterol | 16 | suppressed |
| Jardiance | Empagliflozin | 16 | suppressed |
| Terbinafine Hcl | Terbinafine Hcl | 16 | suppressed |
| Alprazolam | Alprazolam | 15 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 15 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 15 | suppressed |
| Toujeo Max Solostar | Insulin Glargine,hum.Rec.Anlog | 15 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 15 | suppressed |
| Eplerenone | Eplerenone | 14 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 14 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 13 | suppressed |
| Fludrocortisone Acetate | Fludrocortisone Acetate | 13 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 13 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 13 | suppressed |
| Spiriva Respimat | Tiotropium Bromide | 13 | suppressed |
| Desloratadine | Desloratadine | 12 | suppressed |
| Fiasp Flextouch | Insulin Aspart (Niacinamide) | 12 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 12 | suppressed |
| Meloxicam | Meloxicam | 12 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 12 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 11 | suppressed |
| Amoxicillin | Amoxicillin | 11 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 11 | suppressed |
| Memantine Hcl | Memantine Hcl | 11 | suppressed |
| Memantine Hcl Er | Memantine Hcl | 11 | suppressed |
| Pregabalin | Pregabalin | 11 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 11 | suppressed |
| Torsemide | Torsemide | 11 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 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 | $302.36 · 17 records | Otsuka America Pharmaceutical, Inc. | Cologuard Collection Kit, EVENITY, INSPIRE, MOUNJARO, PROLIA, REXULTI, Tymlos, Wegovy, ZEPBOUND | 6 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Mounjaro 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