Healthcare provider profile · identity verified

Jeffrey S Walczyk, MD

Family Practice · DAVENPORT, IA · NPI 1508843384

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
Levothyroxine Sodium	Levothyroxine Sodium	310	73
Atorvastatin Calcium	Atorvastatin Calcium	305	84
Lisinopril	Lisinopril	238	58
Losartan Potassium	Losartan Potassium	235	63
Omeprazole	Omeprazole	208	57
Amlodipine Besylate	Amlodipine Besylate	204	53
Simvastatin	Simvastatin	197	47
Alprazolam	Alprazolam	177	41
Escitalopram Oxalate	Escitalopram Oxalate	124	26
Hydrochlorothiazide	Hydrochlorothiazide	118	34
Zolpidem Tartrate	Zolpidem Tartrate	110	18
Azithromycin	Azithromycin	93	61
Gabapentin	Gabapentin	91	14
Pantoprazole Sodium	Pantoprazole Sodium	91	25
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	89	suppressed
Metformin Hcl	Metformin Hcl	86	26
Sertraline Hcl	Sertraline Hcl	85	17
Tamsulosin Hcl	Tamsulosin Hcl	84	22
Metoprolol Succinate	Metoprolol Succinate	77	23
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	74	19
Allopurinol	Allopurinol	73	16
Rosuvastatin Calcium	Rosuvastatin Calcium	71	18
Tramadol Hcl	Tramadol Hcl	70	19
Albuterol Sulfate Hfa	Albuterol Sulfate	60	26
Lorazepam	Lorazepam	58	13
Furosemide	Furosemide	56	20
Trazodone Hcl	Trazodone Hcl	56	15
Meloxicam	Meloxicam	54	18
Metformin Hcl Er	Metformin Hcl	54	14
Cephalexin	Cephalexin	50	41
Fluoxetine Hcl	Fluoxetine Hcl	49	suppressed
Ozempic	Semaglutide	49	suppressed
Citalopram Hbr	Citalopram Hydrobromide	47	suppressed
Famotidine	Famotidine	47	11
Glimepiride	Glimepiride	47	14
Atenolol	Atenolol	45	suppressed
Testosterone Cypionate	Testosterone Cypionate	44	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	42	11
Amitriptyline Hcl	Amitriptyline Hcl	41	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	41	13
Fluticasone Propionate	Fluticasone Propionate	40	19
Prednisone	Prednisone	38	21
Fenofibrate	Fenofibrate	37	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	37	suppressed
Oxycodone Hcl	Oxycodone Hcl	36	suppressed
Clopidogrel	Clopidogrel Bisulfate	34	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	34	suppressed
Duloxetine Hcl	Duloxetine Hcl	34	suppressed
Jardiance	Empagliflozin	34	suppressed
Celecoxib	Celecoxib	33	suppressed
Paroxetine Hcl	Paroxetine Hcl	30	suppressed
Alendronate Sodium	Alendronate Sodium	29	suppressed
Eliquis	Apixaban	29	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	28	23
Carvedilol	Carvedilol	28	suppressed
Synthroid	Levothyroxine Sodium	28	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	27	suppressed
Ezetimibe	Ezetimibe	26	suppressed
Ketoconazole	Ketoconazole	26	12
Potassium Chloride	Potassium Chloride	26	suppressed
Doxepin Hcl	Doxepin Hcl	25	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	24	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	23	17
Quetiapine Fumarate	Quetiapine Fumarate	23	suppressed
Warfarin Sodium	Warfarin Sodium	23	suppressed
Buspirone Hcl	Buspirone Hcl	22	suppressed
Methylprednisolone	Methylprednisolone	22	19
Bupropion Xl	Bupropion Hcl	21	suppressed
Enalapril Maleate	Enalapril Maleate	21	suppressed
Irbesartan	Irbesartan	20	suppressed
Nabumetone	Nabumetone	20	suppressed
Nebivolol Hcl	Nebivolol Hcl	20	suppressed
Spiriva Handihaler	Tiotropium Bromide	20	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	20	14
Fluconazole	Fluconazole	19	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	19	suppressed
Clonazepam	Clonazepam	18	suppressed
Eszopiclone	Eszopiclone	18	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	18	suppressed
Montelukast Sodium	Montelukast Sodium	18	suppressed
Spironolactone	Spironolactone	18	suppressed
Terazosin Hcl	Terazosin Hcl	18	suppressed
Ezetimibe-Simvastatin	Ezetimibe/Simvastatin	17	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	17	suppressed
Baclofen	Baclofen	15	suppressed
Farxiga	Dapagliflozin Propanediol	15	suppressed
Levetiracetam	Levetiracetam	15	suppressed
Pravastatin Sodium	Pravastatin Sodium	15	suppressed
Ramipril	Ramipril	15	suppressed
Febuxostat	Febuxostat	14	suppressed
Mometasone Furoate	Mometasone Furoate	14	suppressed
Propranolol Hcl	Propranolol Hcl	14	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	14	suppressed
Clonidine Hcl	Clonidine Hcl	13	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	13	suppressed
Mounjaro	Tirzepatide	13	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	13	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	12	suppressed
Bupropion Hcl	Bupropion Hcl	12	suppressed
Diazepam	Diazepam	12	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	12	suppressed
Ursodiol	Ursodiol	12	suppressed
Acyclovir	Acyclovir	11	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	11	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	11	11
Colesevelam Hcl	Colesevelam Hcl	11	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	11	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	11	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	11	suppressed
Methocarbamol	Methocarbamol	11	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	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	—	—	—	—	—
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