Healthcare provider profile · identity verified

Gian C Daroach, MD

Internal Medicine · MARINETTE, WI · NPI 1922113166

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	944	212
Amlodipine Besylate	Amlodipine Besylate	672	167
Losartan Potassium	Losartan Potassium	449	119
Omeprazole	Omeprazole	387	89
Metoprolol Succinate	Metoprolol Succinate	362	92
Levothyroxine Sodium	Levothyroxine Sodium	347	75
Pantoprazole Sodium	Pantoprazole Sodium	317	80
Simvastatin	Simvastatin	300	72
Gabapentin	Gabapentin	281	56
Tamsulosin Hcl	Tamsulosin Hcl	273	72
Metoprolol Tartrate	Metoprolol Tartrate	251	58
Rosuvastatin Calcium	Rosuvastatin Calcium	247	71
Metformin Hcl	Metformin Hcl	238	58
Lisinopril	Lisinopril	237	59
Hydrochlorothiazide	Hydrochlorothiazide	228	61
Furosemide	Furosemide	224	63
Carvedilol	Carvedilol	197	49
Albuterol Sulfate Hfa	Albuterol Sulfate	193	71
Potassium Chloride	Potassium Chloride	168	35
Trazodone Hcl	Trazodone Hcl	157	28
Enalapril Maleate	Enalapril Maleate	153	34
Sertraline Hcl	Sertraline Hcl	146	28
Eliquis	Apixaban	144	29
Warfarin Sodium	Warfarin Sodium	133	47
Metformin Hcl Er	Metformin Hcl	119	32
Allopurinol	Allopurinol	117	30
Meloxicam	Meloxicam	110	34
Clopidogrel	Clopidogrel Bisulfate	103	23
Atenolol	Atenolol	102	25
Famotidine	Famotidine	102	23
Ezetimibe	Ezetimibe	90	27
Fluticasone Propionate	Fluticasone Propionate	85	33
Finasteride	Finasteride	83	24
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	83	27
Januvia	Sitagliptin Phosphate	81	17
Hydralazine Hcl	Hydralazine Hcl	79	18
Tizanidine Hcl	Tizanidine Hcl	76	39
Buspirone Hcl	Buspirone Hcl	73	14
Glipizide	Glipizide	73	21
Mirtazapine	Mirtazapine	73	11
Spironolactone	Spironolactone	70	22
Alprazolam	Alprazolam	68	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	67	20
Torsemide	Torsemide	66	17
Glipizide Er	Glipizide	64	18
Citalopram Hbr	Citalopram Hydrobromide	60	11
Donepezil Hcl	Donepezil Hcl	60	12
Pregabalin	Pregabalin	57	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	56	12
Isosorbide Mononitrate Er	Isosorbide Mononitrate	55	12
Lovastatin	Lovastatin	54	14
Fenofibrate	Fenofibrate Nanocrystallized	50	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	50	16
Amoxicillin	Amoxicillin	48	28
Azithromycin	Azithromycin	46	40
Duloxetine Hcl	Duloxetine Hcl	44	11
Memantine Hcl	Memantine Hcl	44	suppressed
Paroxetine Hcl	Paroxetine Hcl	44	suppressed
Pravastatin Sodium	Pravastatin Sodium	44	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	43	12
Triamcinolone Acetonide	Triamcinolone Acetonide	42	20
Fenofibrate	Fenofibrate	41	suppressed
Primidone	Primidone	38	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	37	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	37	suppressed
Lorazepam	Lorazepam	37	13
Alendronate Sodium	Alendronate Sodium	35	suppressed
Methylprednisolone	Methylprednisolone	35	28
Montelukast Sodium	Montelukast Sodium	35	suppressed
Nitroglycerin	Nitroglycerin	35	21
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	33	11
Ventolin Hfa	Albuterol Sulfate	33	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	32	28
Valsartan	Valsartan	32	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	29	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	29	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	28	suppressed
Digoxin	Digoxin	28	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	28	suppressed
Benazepril Hcl	Benazepril Hcl	27	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	26	suppressed
Terazosin Hcl	Terazosin Hcl	25	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	24	suppressed
Prednisone	Prednisone	24	suppressed
Ropinirole Hcl	Ropinirole Hcl	24	suppressed
Armour Thyroid	Thyroid,pork	23	suppressed
Bupropion Hcl Sr	Bupropion Hcl	22	suppressed
Clonidine Hcl	Clonidine Hcl	22	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	22	suppressed
Lactulose	Lactulose	22	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	22	suppressed
Jardiance	Empagliflozin	21	suppressed
Nifedipine Er	Nifedipine	21	suppressed
Sucralfate	Sucralfate	21	suppressed
Symbicort	Budesonide/Formoterol Fumarate	21	suppressed
Topiramate	Topiramate	21	suppressed
Amiloride Hcl	Amiloride Hcl	20	suppressed
Baclofen	Baclofen	20	suppressed
Calcitriol	Calcitriol	20	suppressed
Folic Acid	Folic Acid	20	suppressed
Fosinopril Sodium	Fosinopril Sodium	20	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	20	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	20	20
Synthroid	Levothyroxine Sodium	20	suppressed
Xarelto	Rivaroxaban	20	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	19	11
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	19	suppressed
Cephalexin	Cephalexin	18	15
Glimepiride	Glimepiride	18	suppressed
Lansoprazole	Lansoprazole	18	suppressed
Levetiracetam	Levetiracetam	18	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	17	suppressed
Farxiga	Dapagliflozin Propanediol	17	suppressed
Diazepam	Diazepam	16	suppressed
Divalproex Sodium	Divalproex Sodium	16	suppressed
Imipramine Hcl	Imipramine Hcl	16	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	15	suppressed
Gemfibrozil	Gemfibrozil	15	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	15	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	13	suppressed
Lacosamide	Lacosamide	13	suppressed
Novolog Flexpen	Insulin Aspart	13	suppressed
Ramipril	Ramipril	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	13	suppressed
Aripiprazole	Aripiprazole	12	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	12	suppressed
Brilinta	Ticagrelor	12	suppressed
Bumetanide	Bumetanide	12	suppressed
Clobetasol Propionate	Clobetasol Propionate	12	suppressed
Clotrimazole	Clotrimazole	12	suppressed
Haloperidol	Haloperidol	12	suppressed
Hydrocortisone	Hydrocortisone	12	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	11	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Colchicine	Colchicine	11	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	11	suppressed
Droplet Pen Needle	Pen Needle, Diabetic	11	suppressed
Phenobarbital	Phenobarbital	11	suppressed
Varenicline Tartrate	Varenicline Tartrate	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

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