Healthcare provider profile · identity verified

Danny Lewis, MD

Emergency Medicine · WATERLOO, IA · NPI 1235580366

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	392	100
Omeprazole	Omeprazole	229	58
Lisinopril	Lisinopril	202	50
Levothyroxine Sodium	Levothyroxine Sodium	201	50
Tamsulosin Hcl	Tamsulosin Hcl	200	55
Furosemide	Furosemide	191	52
Metoprolol Succinate	Metoprolol Succinate	189	43
Eliquis	Apixaban	183	31
Amlodipine Besylate	Amlodipine Besylate	176	49
Losartan Potassium	Losartan Potassium	170	46
Pantoprazole Sodium	Pantoprazole Sodium	135	31
Metoprolol Tartrate	Metoprolol Tartrate	133	35
Prednisone	Prednisone	132	77
Hydrochlorothiazide	Hydrochlorothiazide	120	30
Metformin Hcl	Metformin Hcl	117	33
Sertraline Hcl	Sertraline Hcl	117	25
Warfarin Sodium	Warfarin Sodium	114	22
Gabapentin	Gabapentin	102	32
Rosuvastatin Calcium	Rosuvastatin Calcium	100	32
Simvastatin	Simvastatin	97	28
Famotidine	Famotidine	91	21
Clopidogrel	Clopidogrel Bisulfate	90	26
Potassium Chloride	Potassium Chloride	88	20
Spironolactone	Spironolactone	84	26
Torsemide	Torsemide	80	23
Finasteride	Finasteride	77	16
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	73	26
Meloxicam	Meloxicam	71	24
Xarelto	Rivaroxaban	70	suppressed
Lorazepam	Lorazepam	65	13
Tramadol Hcl	Tramadol Hcl	63	21
Trazodone Hcl	Trazodone Hcl	63	11
Jardiance	Empagliflozin	61	suppressed
Carvedilol	Carvedilol	60	22
Allopurinol	Allopurinol	59	16
Venlafaxine Hcl Er	Venlafaxine Hcl	57	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	54	11
Montelukast Sodium	Montelukast Sodium	54	15
Digoxin	Digoxin	53	11
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	53	18
Escitalopram Oxalate	Escitalopram Oxalate	52	suppressed
Duloxetine Hcl	Duloxetine Hcl	47	15
Oxybutynin Chloride Er	Oxybutynin Chloride	45	suppressed
Pregabalin	Pregabalin	45	suppressed
Cephalexin	Cephalexin	43	30
Doxycycline Hyclate	Doxycycline Hyclate	42	36
Trulicity	Dulaglutide	42	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	40	11
Glipizide Er	Glipizide	40	12
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	38	14
Nystatin	Nystatin	38	15
Albuterol Sulfate Hfa	Albuterol Sulfate	36	18
Ropinirole Hcl	Ropinirole Hcl	36	suppressed
Metformin Hcl Er	Metformin Hcl	35	suppressed
Bupropion Xl	Bupropion Hcl	34	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	32	suppressed
Levetiracetam	Levetiracetam	32	suppressed
Terazosin Hcl	Terazosin Hcl	32	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	32	19
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	32	suppressed
Alprazolam	Alprazolam	31	suppressed
Ozempic	Semaglutide	31	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	31	suppressed
Alendronate Sodium	Alendronate Sodium	30	suppressed
Glipizide	Glipizide	30	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	30	suppressed
Midodrine Hcl	Midodrine Hcl	29	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	29	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	28	suppressed
Fluticasone Propionate	Fluticasone Propionate	27	15
Divalproex Sodium	Divalproex Sodium	26	suppressed
Pravastatin Sodium	Pravastatin Sodium	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	25	23
Isosorbide Mononitrate	Isosorbide Mononitrate	25	suppressed
Mupirocin	Mupirocin	25	17
Citalopram Hbr	Citalopram Hydrobromide	24	suppressed
Mirtazapine	Mirtazapine	24	suppressed
Ondansetron Odt	Ondansetron	24	20
Oxycodone Hcl	Oxycodone Hcl	24	suppressed
Donepezil Hcl	Donepezil Hcl	23	suppressed
Incruse Ellipta	Umeclidinium Bromide	23	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	23	suppressed
Cefdinir	Cefdinir	22	15
Hydroxyzine Hcl	Hydroxyzine Hcl	22	suppressed
Paroxetine Hcl	Paroxetine Hcl	22	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	21	suppressed
Chlorthalidone	Chlorthalidone	21	suppressed
Clonazepam	Clonazepam	21	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	21	suppressed
Hydralazine Hcl	Hydralazine Hcl	21	suppressed
Irbesartan	Irbesartan	21	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	21	12
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	20	suppressed
Entresto	Sacubitril/Valsartan	20	suppressed
Sucralfate	Sucralfate	19	suppressed
Fentanyl	Fentanyl	18	suppressed
Propranolol Hcl	Propranolol Hcl	18	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	18	suppressed
Atovaquone	Atovaquone	17	suppressed
Breo Ellipta	Fluticasone/Vilanterol	17	suppressed
Bumetanide	Bumetanide	17	suppressed
Bupropion Hcl Sr	Bupropion Hcl	17	suppressed
Calcitonin-Salmon	Calcitonin,salmon,synthetic	17	suppressed
Novolin 70-30	Insulin Nph Hum/Reg Insulin Hm	17	suppressed
Fluconazole	Fluconazole	16	suppressed
Humalog Kwikpen U-100	Insulin Lispro	16	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Synthroid	Levothyroxine Sodium	16	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	15	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Latanoprost	Latanoprost	14	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Estradiol	Estradiol	13	suppressed
Peg-3350 And Electrolytes	Peg3350/Sod Sulf,bicarb,cl/Kcl	13	13
Phenytoin Sodium Extended	Phenytoin Sodium Extended	13	suppressed
Tegretol Xr	Carbamazepine	13	suppressed
Trimethoprim	Trimethoprim	13	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	12	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	12	suppressed
Doxepin Hcl	Doxepin Hcl	12	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	12	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	12	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	12	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	12	suppressed
Paroxetine Cr	Paroxetine Hcl	12	suppressed
Raloxifene Hcl	Raloxifene Hcl	12	suppressed
Solifenacin Succinate	Solifenacin Succinate	12	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Ibuprofen	Ibuprofen	11	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	11	suppressed
Tresiba Flextouch U-100	Insulin Degludec	11	suppressed
Vancomycin Hcl	Vancomycin Hcl	11	suppressed
Ventolin Hfa	Albuterol Sulfate	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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