Healthcare provider profile · identity verified

Eammon Grosek

Internal Medicine · MARSHFIELD, WI · NPI 1154855732

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	479	134
Levothyroxine Sodium	Levothyroxine Sodium	346	88
Rosuvastatin Calcium	Rosuvastatin Calcium	338	97
Amlodipine Besylate	Amlodipine Besylate	310	94
Losartan Potassium	Losartan Potassium	306	89
Metoprolol Succinate	Metoprolol Succinate	294	80
Tamsulosin Hcl	Tamsulosin Hcl	293	82
Lisinopril	Lisinopril	262	76
Metformin Hcl	Metformin Hcl	244	65
Omeprazole	Omeprazole	239	73
Furosemide	Furosemide	237	54
Simvastatin	Simvastatin	217	50
Gabapentin	Gabapentin	205	51
Duloxetine Hcl	Duloxetine Hcl	203	28
Trazodone Hcl	Trazodone Hcl	196	58
Allopurinol	Allopurinol	177	44
Eliquis	Apixaban	171	38
Potassium Chloride	Potassium Chloride	163	41
Albuterol Sulfate Hfa	Albuterol Sulfate	158	46
Montelukast Sodium	Montelukast Sodium	143	37
Pantoprazole Sodium	Pantoprazole Sodium	130	40
Tramadol Hcl	Tramadol Hcl	122	34
Hydrochlorothiazide	Hydrochlorothiazide	120	29
Ezetimibe	Ezetimibe	113	28
Spironolactone	Spironolactone	108	32
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	102	16
Pravastatin Sodium	Pravastatin Sodium	100	32
Ropinirole Hcl	Ropinirole Hcl	92	16
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	91	46
Warfarin Sodium	Warfarin Sodium	90	18
Jardiance	Empagliflozin	89	27
Celecoxib	Celecoxib	86	29
Metoprolol Tartrate	Metoprolol Tartrate	78	25
Carvedilol	Carvedilol	76	26
Metformin Hcl Er	Metformin Hcl	74	19
Atenolol	Atenolol	73	17
Clopidogrel	Clopidogrel Bisulfate	73	21
Fluoxetine Hcl	Fluoxetine Hcl	70	18
Aripiprazole	Aripiprazole	68	suppressed
Xarelto	Rivaroxaban	68	14
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	67	18
Pregabalin	Pregabalin	67	23
Finasteride	Finasteride	65	22
Baclofen	Baclofen	62	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	61	61
Quetiapine Fumarate	Quetiapine Fumarate	61	12
Venlafaxine Hcl Er	Venlafaxine Hcl	60	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	59	13
Fluticasone Propionate	Fluticasone Propionate	59	30
Oxycodone Hcl	Oxycodone Hcl	58	17
Buspirone Hcl	Buspirone Hcl	57	12
Lorazepam	Lorazepam	57	14
Synthroid	Levothyroxine Sodium	55	21
Citalopram Hbr	Citalopram Hydrobromide	54	14
Shingrix	Varicella-Zoster Ge/As01b/Pf	54	48
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	53	13
Ozempic	Semaglutide	52	12
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	51	suppressed
Clonazepam	Clonazepam	50	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	48	suppressed
Prednisone	Prednisone	47	31
Zolpidem Tartrate	Zolpidem Tartrate	47	14
Sertraline Hcl	Sertraline Hcl	46	17
Lansoprazole	Lansoprazole	45	12
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	44	33
Dalfampridine Er	Dalfampridine	44	suppressed
Chlorthalidone	Chlorthalidone	43	11
Enalapril Maleate	Enalapril Maleate	41	suppressed
Trulicity	Dulaglutide	40	suppressed
Meloxicam	Meloxicam	39	16
Morphine Sulfate Er	Morphine Sulfate	39	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	37	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	36	12
Nitroglycerin	Nitroglycerin	35	18
Pioglitazone Hcl	Pioglitazone Hcl	35	11
Doxycycline Monohydrate	Doxycycline Monohydrate	34	30
Ondansetron Odt	Ondansetron	34	12
Rybelsus	Semaglutide	34	11
Alprazolam	Alprazolam	33	suppressed
Donepezil Hcl	Donepezil Hcl	33	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	33	suppressed
Ipratropium Bromide	Ipratropium Bromide	32	15
Mirtazapine	Mirtazapine	32	13
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	32	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	31	18
Cephalexin	Cephalexin	30	11
Oxybutynin Chloride Er	Oxybutynin Chloride	30	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	29	29
Myrbetriq	Mirabegron	29	suppressed
Bupropion Xl	Bupropion Hcl	28	suppressed
Diclofenac Sodium	Diclofenac Sodium	28	13
Esomeprazole Magnesium	Esomeprazole Magnesium	28	11
Glipizide	Glipizide	28	suppressed
Famotidine	Famotidine	27	11
Methocarbamol	Methocarbamol	27	suppressed
Ventolin Hfa	Albuterol Sulfate	27	suppressed
Breo Ellipta	Fluticasone/Vilanterol	26	suppressed
Terazosin Hcl	Terazosin Hcl	25	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	24	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	23	suppressed
Propranolol Hcl Er	Propranolol Hcl	22	suppressed
Amoxicillin	Amoxicillin	21	17
Labetalol Hcl	Labetalol Hcl	21	suppressed
Ramipril	Ramipril	21	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	20	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	20	suppressed
Estradiol	Estradiol	20	suppressed
Fluconazole	Fluconazole	20	15
Irbesartan	Irbesartan	20	suppressed
Mounjaro	Tirzepatide	20	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	19	suppressed
Olanzapine	Olanzapine	19	suppressed
Propranolol Hcl	Propranolol Hcl	19	suppressed
Spiriva Handihaler	Tiotropium Bromide	19	suppressed
Fenofibrate	Fenofibrate	18	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	18	suppressed
Primidone	Primidone	18	suppressed
Torsemide	Torsemide	18	suppressed
Belsomra	Suvorexant	17	suppressed
Entresto	Sacubitril/Valsartan	17	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Paroxetine Hcl	Paroxetine Hcl	17	suppressed
Valsartan	Valsartan	17	suppressed
Clonidine Hcl	Clonidine Hcl	16	suppressed
Alendronate Sodium	Alendronate Sodium	15	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	15	suppressed
Digoxin	Digoxin	15	suppressed
Naproxen	Naproxen	15	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Bumetanide	Bumetanide	14	suppressed
Desmopressin Acetate	Desmopressin Acetate	14	suppressed
Ibuprofen	Ibuprofen	14	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	14	suppressed
Memantine Hcl	Memantine Hcl	14	suppressed
Novolog	Insulin Aspart	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Symbicort	Budesonide/Formoterol Fumarate	14	suppressed
Tizanidine Hcl	Tizanidine Hcl	14	suppressed
Acyclovir	Acyclovir	13	suppressed
Azithromycin	Azithromycin	13	13
Butalb-Acetaminoph-Caff-Codein	Butalbit/Acetamin/Caff/Codeine	13	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	13	suppressed
Doxepin Hcl	Doxepin Hcl	13	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	13	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	13	suppressed
Azelastine Hcl	Azelastine Hcl	12	suppressed
Carbamazepine	Carbamazepine	12	suppressed
Cefuroxime	Cefuroxime Axetil	12	11
Glimepiride	Glimepiride	12	suppressed
Spiriva Respimat	Tiotropium Bromide	12	suppressed
Telmisartan	Telmisartan	12	suppressed
Tresiba Flextouch U-100	Insulin Degludec	12	suppressed
Tresiba Flextouch U-200	Insulin Degludec	12	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	11	suppressed
Sucralfate	Sucralfate	11	suppressed
Testosterone Cypionate	Testosterone Cypionate	11	suppressed
Ultra-Fine Nano 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	—	—	—	—	—
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