Healthcare provider profile · identity verified

Piotr J Kolanowski, MD

Family Practice · MILWAUKEE, WI · NPI 1922066422

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	1037	287
Pantoprazole Sodium	Pantoprazole Sodium	727	186
Amlodipine Besylate	Amlodipine Besylate	697	208
Levothyroxine Sodium	Levothyroxine Sodium	583	143
Rosuvastatin Calcium	Rosuvastatin Calcium	582	170
Allopurinol	Allopurinol	555	154
Metformin Hcl	Metformin Hcl	493	153
Metoprolol Succinate	Metoprolol Succinate	492	130
Lisinopril	Lisinopril	489	142
Losartan Potassium	Losartan Potassium	482	142
Gabapentin	Gabapentin	373	108
Tamsulosin Hcl	Tamsulosin Hcl	358	102
Albuterol Sulfate Hfa	Albuterol Sulfate	319	94
Clopidogrel	Clopidogrel Bisulfate	305	78
Omeprazole	Omeprazole	288	76
Sertraline Hcl	Sertraline Hcl	283	71
Eliquis	Apixaban	260	60
Jardiance	Empagliflozin	247	64
Meloxicam	Meloxicam	225	91
Furosemide	Furosemide	216	75
Carvedilol	Carvedilol	215	59
Ropinirole Hcl	Ropinirole Hcl	212	64
Simvastatin	Simvastatin	212	61
Fluticasone Propionate	Fluticasone Propionate	210	69
Metoprolol Tartrate	Metoprolol Tartrate	208	57
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	207	52
Tramadol Hcl	Tramadol Hcl	204	73
Trazodone Hcl	Trazodone Hcl	203	62
Pregabalin	Pregabalin	200	84
Ezetimibe	Ezetimibe	195	46
Ozempic	Semaglutide	192	39
Prednisone	Prednisone	188	140
Hydrochlorothiazide	Hydrochlorothiazide	187	49
Tizanidine Hcl	Tizanidine Hcl	180	58
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	170	59
Duloxetine Hcl	Duloxetine Hcl	167	42
Potassium Chloride	Potassium Chloride	162	56
Zolpidem Tartrate	Zolpidem Tartrate	160	63
Mirtazapine	Mirtazapine	156	49
Finasteride	Finasteride	151	41
Pioglitazone Hcl	Pioglitazone Hcl	151	37
Spironolactone	Spironolactone	148	39
Linzess	Linaclotide	146	44
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	142	49
Montelukast Sodium	Montelukast Sodium	131	29
Bumetanide	Bumetanide	129	46
Alendronate Sodium	Alendronate Sodium	128	40
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	128	32
Venlafaxine Hcl Er	Venlafaxine Hcl	125	44
Famotidine	Famotidine	120	34
Trulicity	Dulaglutide	116	17
Tradjenta	Linagliptin	114	25
Ondansetron Odt	Ondansetron	113	38
Warfarin Sodium	Warfarin Sodium	112	26
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	109	34
Vitamin D2	Ergocalciferol (Vitamin D2)	101	41
Januvia	Sitagliptin Phosphate	97	25
Metformin Hcl Er	Metformin Hcl	96	33
Donepezil Hcl	Donepezil Hcl	95	27
Symbicort	Budesonide/Formoterol Fumarate	92	22
Alprazolam	Alprazolam	88	25
Bupropion Xl	Bupropion Hcl	88	27
Baclofen	Baclofen	86	21
Fluoxetine Hcl	Fluoxetine Hcl	85	19
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	83	25
Azithromycin	Azithromycin	82	63
Aripiprazole	Aripiprazole	81	20
Ciprofloxacin Hcl	Ciprofloxacin Hcl	81	72
Fenofibrate	Fenofibrate Nanocrystallized	78	18
Lorazepam	Lorazepam	76	13
Oxybutynin Chloride Er	Oxybutynin Chloride	76	21
Isosorbide Mononitrate Er	Isosorbide Mononitrate	72	16
Memantine Hcl	Memantine Hcl	70	18
Doxazosin Mesylate	Doxazosin Mesylate	68	23
Triamcinolone Acetonide	Triamcinolone Acetonide	68	29
Buspirone Hcl	Buspirone Hcl	63	13
Diclofenac Sodium Er	Diclofenac Sodium	63	23
Topiramate	Topiramate	62	18
Glimepiride	Glimepiride	60	19
Hydralazine Hcl	Hydralazine Hcl	60	19
Myrbetriq	Mirabegron	60	13
Ketoconazole	Ketoconazole	59	24
Lidocaine	Lidocaine	59	22
Entresto	Sacubitril/Valsartan	58	suppressed
Olanzapine	Olanzapine	58	14
Meclizine Hcl	Meclizine Hcl	56	25
Pravastatin Sodium	Pravastatin Sodium	53	18
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	53	20
Diclofenac Sodium	Diclofenac Sodium	52	20
Varenicline Tartrate	Varenicline Tartrate	52	18
Cilostazol	Cilostazol	49	11
Fluconazole	Fluconazole	49	41
Xarelto	Rivaroxaban	49	11
Amitriptyline Hcl	Amitriptyline Hcl	47	suppressed
Hydrocortisone	Hydrocortisone	47	20
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	46	39
Rybelsus	Semaglutide	46	15
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	44	18
Lamotrigine	Lamotrigine	43	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	43	14
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	43	15
Dicyclomine Hcl	Dicyclomine Hcl	42	11
Humulin 70/30 Kwikpen	Insulin Nph Hum/Reg Insulin Hm	42	11
Hydroxyzine Hcl	Hydroxyzine Hcl	41	16
Clonidine Hcl	Clonidine Hcl	40	17
Folic Acid	Folic Acid	40	16
Solifenacin Succinate	Solifenacin Succinate	40	15
Mounjaro	Tirzepatide	39	11
Atenolol	Atenolol	38	12
Clonazepam	Clonazepam	38	15
Fenofibrate	Fenofibrate	37	11
Lubiprostone	Lubiprostone	37	15
Quetiapine Fumarate	Quetiapine Fumarate	37	13
Amoxicillin	Amoxicillin	36	21
Clobetasol Propionate	Clobetasol Propionate	36	17
Divalproex Sodium	Divalproex Sodium	35	suppressed
Lactulose	Lactulose	35	11
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	35	15
Paroxetine Hcl	Paroxetine Hcl	35	suppressed
Citalopram Hbr	Citalopram Hydrobromide	34	11
Combivent Respimat	Ipratropium/Albuterol Sulfate	32	suppressed
Cefdinir	Cefdinir	31	28
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	31	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	31	12
Levetiracetam	Levetiracetam	31	11
Midodrine Hcl	Midodrine Hcl	30	suppressed
Nebivolol Hcl	Nebivolol Hcl	30	11
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	30	26
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	29	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	29	suppressed
Calcitriol	Calcitriol	28	suppressed
Clindamycin Hcl	Clindamycin Hcl	28	26
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	28	14
Lovastatin	Lovastatin	28	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	28	11
Alfuzosin Hcl Er	Alfuzosin Hcl	27	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	27	suppressed
Jentadueto	Linagliptin/Metformin Hcl	27	suppressed
Labetalol Hcl	Labetalol Hcl	27	suppressed
Loperamide	Loperamide Hcl	27	12
Torsemide	Torsemide	27	suppressed
Ventolin Hfa	Albuterol Sulfate	27	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	26	13
Ipratropium Bromide	Ipratropium Bromide	26	14
Nifedipine Er	Nifedipine	26	12
Chlorthalidone	Chlorthalidone	25	11
Novolog Flexpen	Insulin Aspart	25	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	25	suppressed
Oxycodone Hcl	Oxycodone Hcl	25	15
Valacyclovir	Valacyclovir Hcl	25	suppressed
Breo Ellipta	Fluticasone/Vilanterol	24	suppressed
Diazepam	Diazepam	24	suppressed
Nitroglycerin	Nitroglycerin	24	suppressed
Risperidone	Risperidone	24	suppressed
Testosterone	Testosterone	24	suppressed
Doxepin Hcl	Doxepin Hcl	22	suppressed
Farxiga	Dapagliflozin Propanediol	22	suppressed
Metolazone	Metolazone	22	suppressed
Roflumilast	Roflumilast	22	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	22	19
Insulin Lispro Kwikpen U-100	Insulin Lispro	21	11
Irbesartan	Irbesartan	21	suppressed
Memantine Hcl Er	Memantine Hcl	21	suppressed
Ondansetron Hcl	Ondansetron Hcl	21	suppressed
Amiodarone Hcl	Amiodarone Hcl	20	suppressed
Glipizide	Glipizide	20	suppressed
Ibandronate Sodium	Ibandronate Sodium	20	suppressed
Lansoprazole	Lansoprazole	20	suppressed
Latanoprost	Latanoprost	20	suppressed
Levofloxacin	Levofloxacin	20	18
Fenofibrate	Fenofibrate,micronized	19	suppressed
Glycopyrrolate	Glycopyrrolate	19	suppressed
Humalog Kwikpen U-100	Insulin Lispro	19	suppressed
Tramadol Hcl Er	Tramadol Hcl	19	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	18	suppressed
Betamethasone Diprop Augmented	Betamethasone/Propylene Glyc	18	11
Clonidine	Clonidine	18	suppressed
Febuxostat	Febuxostat	18	suppressed
Ibuprofen	Ibuprofen	18	suppressed
Niacin Er	Niacin	18	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	18	18
Wixela Inhub	Fluticasone Propion/Salmeterol	18	suppressed
Atrovent Hfa	Ipratropium Bromide	17	suppressed
Betamethasone Dipropionate	Betamethasone Dipropionate	17	suppressed
Bupropion Hcl Sr	Bupropion Hcl	17	suppressed
Cefuroxime	Cefuroxime Axetil	17	15
Celecoxib	Celecoxib	17	suppressed
Klor-Con M20	Potassium Chloride	17	suppressed
Modafinil	Modafinil	17	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	17	suppressed
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Ramipril	Ramipril	16	suppressed
Valsartan	Valsartan	16	suppressed
Acarbose	Acarbose	15	suppressed
Divalproex Sodium Er	Divalproex Sodium	15	suppressed
Enalapril Maleate	Enalapril Maleate	15	suppressed
Humalog Kwikpen U-200	Insulin Lispro	15	suppressed
Nystatin	Nystatin	15	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	15	suppressed
Prochlorperazine Maleate	Prochlorperazine Maleate	15	suppressed
Ranolazine Er	Ranolazine	15	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	14	12
Gemfibrozil	Gemfibrozil	14	suppressed
Moxifloxacin	Moxifloxacin Hcl	14	12
Mupirocin	Mupirocin	14	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	13	suppressed
Colchicine	Colchicine	13	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	13	suppressed
Novolin 70-30 Flexpen	Insulin Nph Hum/Reg Insulin Hm	13	suppressed
Vascepa	Icosapent Ethyl	13	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	12	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	12	suppressed
Cholestyramine	Cholestyramine (With Sugar)	12	suppressed
Dutasteride	Dutasteride	12	suppressed
Humalog Mix 75-25 Kwikpen	Insulin Lispro Protamin/Lispro	12	suppressed
Levemir Flexpen	Insulin Detemir	12	suppressed
Ramelteon	Ramelteon	12	suppressed
Temazepam	Temazepam	12	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	12	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	12	suppressed
Xifaxan	Rifaximin	12	suppressed
Desloratadine	Desloratadine	11	suppressed
Digoxin	Digoxin	11	suppressed
Insulin Aspart Flexpen	Insulin Aspart	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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