Healthcare provider profile · identity verified

Tyler D Zenner, MD

Family Practice · SUN PRAIRIE, WI · NPI 1194778704

Profile state: partd only Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

We did not find matching Open Payments records for this doctor in 2025.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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	652	190
Lisinopril	Lisinopril	302	79
Tamsulosin Hcl	Tamsulosin Hcl	261	72
Losartan Potassium	Losartan Potassium	232	74
Hydrochlorothiazide	Hydrochlorothiazide	207	58
Amlodipine Besylate	Amlodipine Besylate	206	54
Metoprolol Succinate	Metoprolol Succinate	206	56
Omeprazole	Omeprazole	184	54
Metformin Hcl Er	Metformin Hcl	148	40
Gabapentin	Gabapentin	137	30
Sertraline Hcl	Sertraline Hcl	124	23
Levothyroxine Sodium	Levothyroxine Sodium	118	29
Eliquis	Apixaban	117	27
Pantoprazole Sodium	Pantoprazole Sodium	112	29
Furosemide	Furosemide	106	34
Fluticasone Propionate	Fluticasone Propionate	96	39
Chlorthalidone	Chlorthalidone	91	27
Allopurinol	Allopurinol	90	23
Metoprolol Tartrate	Metoprolol Tartrate	82	21
Rosuvastatin Calcium	Rosuvastatin Calcium	81	21
Metformin Hcl	Metformin Hcl	75	21
Simvastatin	Simvastatin	70	18
Warfarin Sodium	Warfarin Sodium	67	17
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	66	15
Famotidine	Famotidine	65	17
Finasteride	Finasteride	64	16
Spironolactone	Spironolactone	64	17
Potassium Chloride	Potassium Chloride	62	18
Bupropion Xl	Bupropion Hcl	61	13
Tizanidine Hcl	Tizanidine Hcl	60	19
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	59	20
Albuterol Sulfate Hfa	Albuterol Sulfate	55	25
Fluoxetine Hcl	Fluoxetine Hcl	54	12
Carvedilol	Carvedilol	49	15
Pregabalin	Pregabalin	46	suppressed
Trazodone Hcl	Trazodone Hcl	46	11
Atenolol	Atenolol	44	13
Ozempic	Semaglutide	42	suppressed
Duloxetine Hcl	Duloxetine Hcl	37	suppressed
Jardiance	Empagliflozin	37	suppressed
Citalopram Hbr	Citalopram Hydrobromide	36	11
Glipizide Er	Glipizide	36	14
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	36	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	35	suppressed
Clopidogrel	Clopidogrel Bisulfate	34	11
Lorazepam	Lorazepam	33	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	32	15
Enalapril Maleate	Enalapril Maleate	30	suppressed
Trulicity	Dulaglutide	29	suppressed
Xarelto	Rivaroxaban	29	suppressed
Farxiga	Dapagliflozin Propanediol	28	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	28	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	27	20
Carbidopa-Levodopa	Carbidopa/Levodopa	26	suppressed
Mirtazapine	Mirtazapine	26	suppressed
Olanzapine	Olanzapine	26	suppressed
Benazepril Hcl	Benazepril Hcl	25	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	25	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	24	suppressed
Glimepiride	Glimepiride	23	suppressed
Montelukast Sodium	Montelukast Sodium	23	suppressed
Prednisone	Prednisone	23	18
Glipizide	Glipizide	22	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	21	suppressed
Alprazolam	Alprazolam	20	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	20	suppressed
Anastrozole	Anastrozole	19	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	19	suppressed
Alendronate Sodium	Alendronate Sodium	18	suppressed
Diclofenac Sodium	Diclofenac Sodium	18	11
Meloxicam	Meloxicam	18	suppressed
Naproxen	Naproxen	18	12
Venlafaxine Hcl Er	Venlafaxine Hcl	18	suppressed
Ventolin Hfa	Albuterol Sulfate	18	11
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	17	suppressed
Diazepam	Diazepam	17	suppressed
Mounjaro	Tirzepatide	17	suppressed
Temazepam	Temazepam	17	suppressed
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Celecoxib	Celecoxib	16	suppressed
Donepezil Hcl	Donepezil Hcl	16	suppressed
Loperamide	Loperamide Hcl	15	suppressed
Meclizine Hcl	Meclizine Hcl	15	suppressed
Memantine Hcl	Memantine Hcl	15	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Oxycodone Hcl	Oxycodone Hcl	15	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	15	suppressed
Buspirone Hcl	Buspirone Hcl	13	suppressed
Ibuprofen	Ibuprofen	13	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	13	suppressed
Perphenazine	Perphenazine	13	suppressed
Tresiba Flextouch U-100	Insulin Degludec	13	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	13	suppressed
Amoxicillin	Amoxicillin	12	suppressed
Breo Ellipta	Fluticasone/Vilanterol	12	suppressed
Insulin Aspart Flexpen	Insulin Aspart	12	suppressed
Januvia	Sitagliptin Phosphate	12	suppressed
Morphine Sulfate Er	Morphine Sulfate	12	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	12	suppressed
Nitroglycerin	Nitroglycerin	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Oxycontin	Oxycodone Hcl	12	suppressed
Spiriva Respimat	Tiotropium Bromide	12	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Arnuity Ellipta	Fluticasone Furoate	11	suppressed
Azelastine Hcl	Azelastine Hcl	11	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	11	suppressed
Digoxin	Digoxin	11	suppressed
Entresto	Sacubitril/Valsartan	11	suppressed
Humalog	Insulin Lispro	11	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	11	suppressed
Morphine Sulfate	Morphine Sulfate	11	suppressed
Pravastatin Sodium	Pravastatin Sodium	11	suppressed
Testosterone Cypionate	Testosterone Cypionate	11	suppressed
Xultophy 100-3.6	Insulin Degludec/Liraglutide	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	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

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

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error