Payment overview · 2025
General Payments
$32.65
2 reported records · 2 companies
Healthcare provider profile · identity verified
Christopher Foster Hanzaker, MD
Allopathic & Osteopathic Physicians|Internal Medicine · KALAMAZOO, MI · NPI 1376983205
Verified facts
What the public records show
CMS Open Payments records show Christopher Foster Hanzaker, MD received $32.65 in general payments during 2025 across 2 reported records.
Abbott Laboratories accounted for 58.2% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 2 associated products.
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 118 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 32 claims for Rybelsus 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 |
|---|---|---|---|---|---|
| Abbott Laboratories | Unresolved — no canonical attribution shown | $19.00 | 58.2% | 1 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $13.65 | 41.8% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $32.65 | 2 |
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 |
|---|---|---|---|---|---|
| FREESTYLE LIBRE 3 Normalized: freestyle libre 3 |
Device | Abbott Laboratories | $19.00 | 1 | 2025 |
Source payment records
|
|||||
| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $13.65 | 1 | 2025 |
Source payment records
|
|||||
* 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
No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.
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 |
|---|---|---|---|---|---|---|
| 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 |
118 | 28 |
| 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 |
32 | 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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 827 | 239 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 644 | 184 |
| Levothyroxine Sodium | Levothyroxine Sodium | 638 | 158 |
| Amlodipine Besylate | Amlodipine Besylate | 596 | 162 |
| Omeprazole | Omeprazole | 464 | 136 |
| Lisinopril | Lisinopril | 448 | 110 |
| Losartan Potassium | Losartan Potassium | 378 | 106 |
| Metformin Hcl Er | Metformin Hcl | 295 | 86 |
| Gabapentin | Gabapentin | 292 | 105 |
| Metoprolol Succinate | Metoprolol Succinate | 256 | 80 |
| Pantoprazole Sodium | Pantoprazole Sodium | 241 | 76 |
| Alprazolam | Alprazolam | 239 | 68 |
| Metformin Hcl | Metformin Hcl | 223 | 62 |
| Tamsulosin Hcl | Tamsulosin Hcl | 209 | 72 |
| Eliquis | Apixaban | 204 | 54 |
| Simvastatin | Simvastatin | 181 | 51 |
| Tramadol Hcl | Tramadol Hcl | 176 | 50 |
| Prednisone | Prednisone | 170 | 105 |
| Hydrochlorothiazide | Hydrochlorothiazide | 162 | 48 |
| Famotidine | Famotidine | 155 | 69 |
| Escitalopram Oxalate | Escitalopram Oxalate | 145 | 45 |
| Trazodone Hcl | Trazodone Hcl | 134 | 43 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 130 | 39 |
| Bupropion Xl | Bupropion Hcl | 126 | 34 |
| Chlorthalidone | Chlorthalidone | 124 | 42 |
| Sertraline Hcl | Sertraline Hcl | 123 | 38 |
| Allopurinol | Allopurinol | 122 | 34 |
| Ozempic | Semaglutide | 118 | 28 |
| Pregabalin | Pregabalin | 116 | 41 |
| Mounjaro | Tirzepatide | 111 | 17 |
| Duloxetine Hcl | Duloxetine Hcl | 110 | 34 |
| Fluticasone Propionate | Fluticasone Propionate | 108 | 44 |
| Jardiance | Empagliflozin | 107 | 26 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 103 | 68 |
| Ezetimibe | Ezetimibe | 101 | 28 |
| Pravastatin Sodium | Pravastatin Sodium | 99 | 29 |
| Furosemide | Furosemide | 98 | 29 |
| Potassium Chloride | Potassium Chloride | 97 | 39 |
| Trulicity | Dulaglutide | 91 | 25 |
| Carvedilol | Carvedilol | 90 | 23 |
| Meloxicam | Meloxicam | 89 | 27 |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 87 | 66 |
| Glipizide Er | Glipizide | 87 | 23 |
| Montelukast Sodium | Montelukast Sodium | 78 | 20 |
| Metoprolol Tartrate | Metoprolol Tartrate | 77 | 23 |
| Zolpidem Tartrate | Zolpidem Tartrate | 74 | 27 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 69 | 21 |
| Synthroid | Levothyroxine Sodium | 69 | 16 |
| Clopidogrel | Clopidogrel Bisulfate | 67 | 24 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 67 | 17 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 65 | 23 |
| Spironolactone | Spironolactone | 64 | 21 |
| Oxycodone Hcl | Oxycodone Hcl | 63 | 15 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 62 | 20 |
| Finasteride | Finasteride | 61 | 17 |
| Citalopram Hbr | Citalopram Hydrobromide | 59 | 15 |
| Torsemide | Torsemide | 57 | 18 |
| Alendronate Sodium | Alendronate Sodium | 54 | 20 |
| Clonazepam | Clonazepam | 54 | suppressed |
| Azithromycin | Azithromycin | 53 | 39 |
| Atenolol | Atenolol | 52 | 17 |
| Enalapril Maleate | Enalapril Maleate | 51 | 15 |
| Irbesartan | Irbesartan | 51 | 12 |
| Tizanidine Hcl | Tizanidine Hcl | 51 | 21 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 50 | suppressed |
| Xarelto | Rivaroxaban | 50 | 18 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 49 | 15 |
| Valsartan | Valsartan | 49 | 14 |
| Lorazepam | Lorazepam | 48 | 17 |
| Donepezil Hcl | Donepezil Hcl | 44 | 14 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 44 | 12 |
| Ventolin Hfa | Albuterol Sulfate | 42 | 23 |
| Fluoxetine Hcl | Fluoxetine Hcl | 40 | 14 |
| Valacyclovir | Valacyclovir Hcl | 40 | 20 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 39 | suppressed |
| Myrbetriq | Mirabegron | 39 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 39 | 31 |
| Creon | Lipase/Protease/Amylase | 38 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 38 | 11 |
| Celecoxib | Celecoxib | 37 | 14 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 37 | 28 |
| Januvia | Sitagliptin Phosphate | 36 | 11 |
| Nadolol | Nadolol | 36 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 35 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 35 | 11 |
| Paroxetine Hcl | Paroxetine Hcl | 35 | suppressed |
| Tolterodine Tartrate Er | Tolterodine Tartrate | 35 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 34 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 34 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 33 | 23 |
| Cephalexin | Cephalexin | 33 | 18 |
| Telmisartan | Telmisartan | 33 | 15 |
| Amitriptyline Hcl | Amitriptyline Hcl | 32 | suppressed |
| Baclofen | Baclofen | 32 | 14 |
| Dutasteride | Dutasteride | 32 | suppressed |
| Rybelsus | Semaglutide | 32 | suppressed |
| Estradiol | Estradiol | 31 | 13 |
| Methocarbamol | Methocarbamol | 31 | 17 |
| Mirtazapine | Mirtazapine | 30 | 11 |
| Propranolol Hcl | Propranolol Hcl | 30 | suppressed |
| Lansoprazole | Lansoprazole | 29 | suppressed |
| Ondansetron Odt | Ondansetron | 29 | 17 |
| Buspirone Hcl | Buspirone Hcl | 28 | suppressed |
| Topiramate | Topiramate | 28 | suppressed |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 27 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 26 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 26 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 25 | 11 |
| Fenofibrate | Fenofibrate Nanocrystallized | 24 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 24 | 18 |
| Propranolol Hcl Er | Propranolol Hcl | 24 | suppressed |
| Trintellix | Vortioxetine Hydrobromide | 24 | suppressed |
| Acyclovir | Acyclovir | 23 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 23 | suppressed |
| Ibuprofen | Ibuprofen | 23 | 14 |
| Methylprednisolone | Methylprednisolone | 23 | 20 |
| Varenicline Tartrate | Varenicline Tartrate | 23 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 22 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 21 | 14 |
| Ropinirole Hcl | Ropinirole Hcl | 21 | suppressed |
| Dextroamphetamine-Amphet Er | Dextroamphetamine/Amphetamine | 20 | suppressed |
| Lovastatin | Lovastatin | 20 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 20 | 16 |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 20 | 13 |
| Naproxen | Naproxen | 20 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 20 | suppressed |
| Betamethasone Dipropionate | Betamethasone Dipropionate | 19 | 16 |
| Nitroglycerin | Nitroglycerin | 19 | 14 |
| Symbicort | Budesonide/Formoterol Fumarate | 19 | suppressed |
| Aimovig Autoinjector | Erenumab-Aooe | 18 | suppressed |
| Candesartan Cilexetil | Candesartan Cilexetil | 18 | suppressed |
| Colchicine | Colchicine | 18 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 18 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 18 | suppressed |
| Ramipril | Ramipril | 18 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 17 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 17 | suppressed |
| Eplerenone | Eplerenone | 17 | suppressed |
| Ketoconazole | Ketoconazole | 17 | 12 |
| Morphine Sulfate | Morphine Sulfate | 17 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 17 | suppressed |
| Temazepam | Temazepam | 17 | suppressed |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 16 | suppressed |
| Eszopiclone | Eszopiclone | 16 | suppressed |
| Humalog Kwikpen U-100 | Insulin Lispro | 16 | suppressed |
| Rabeprazole Sodium | Rabeprazole Sodium | 16 | suppressed |
| Terazosin Hcl | Terazosin Hcl | 16 | suppressed |
| Desloratadine | Desloratadine | 15 | suppressed |
| Diazepam | Diazepam | 15 | suppressed |
| Nystatin | Nystatin | 15 | 11 |
| Paxlovid | Nirmatrelvir/Ritonavir | 15 | 15 |
| Benzonatate | Benzonatate | 14 | suppressed |
| Desmopressin Acetate | Desmopressin (Nonrefrigerated) | 14 | suppressed |
| Nifedipine Er | Nifedipine | 14 | suppressed |
| Admelog Solostar | Insulin Lispro | 13 | suppressed |
| Amoxicillin | Amoxicillin | 13 | suppressed |
| Clobetasol Propionate | Clobetasol Propionate | 13 | suppressed |
| Epinephrine | Epinephrine | 13 | 11 |
| Farxiga | Dapagliflozin Propanediol | 13 | suppressed |
| Fenofibric Acid | Fenofibric Acid (Choline) | 13 | suppressed |
| Sucralfate | Sucralfate | 13 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 13 | 11 |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 12 | suppressed |
| Colesevelam Hcl | Colesevelam Hcl | 12 | suppressed |
| Jantoven | Warfarin Sodium | 12 | suppressed |
| Lamotrigine | Lamotrigine | 12 | suppressed |
| Loperamide | Loperamide Hcl | 12 | suppressed |
| Morphine Sulfate Er | Morphine Sulfate | 12 | suppressed |
| Ramelteon | Ramelteon | 12 | suppressed |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 12 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 12 | suppressed |
| Zolpidem Tartrate Er | Zolpidem Tartrate | 12 | suppressed |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 11 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 11 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 11 | suppressed |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 11 | suppressed |
| Cefdinir | Cefdinir | 11 | suppressed |
| Colestipol Hcl | Colestipol Hcl | 11 | suppressed |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 11 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 11 | suppressed |
| Fentanyl | Fentanyl | 11 | suppressed |
| Fluconazole | Fluconazole | 11 | suppressed |
| Levetiracetam | Levetiracetam | 11 | suppressed |
| Repatha Sureclick | Evolocumab | 11 | suppressed |
| Testosterone Cypionate | Testosterone Cypionate | 11 | suppressed |
| Ultra-Fine Mini Pen Needle | Pen Needle, Diabetic | 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 | $32.65 · 2 records | Abbott Laboratories | FREESTYLE LIBRE 3, Wegovy | 2 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- How do you evaluate evidence when you have a financial relationship with Novo Nordisk 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