Healthcare provider profile · identity verified

Sean Darrell Nelson, MD

Family Practice · SIOUX CITY, IA · NPI 1477044758

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	282	77
Levothyroxine Sodium	Levothyroxine Sodium	261	57
Omeprazole	Omeprazole	255	63
Lisinopril	Lisinopril	237	55
Amlodipine Besylate	Amlodipine Besylate	233	53
Gabapentin	Gabapentin	217	39
Furosemide	Furosemide	196	58
Losartan Potassium	Losartan Potassium	157	45
Simvastatin	Simvastatin	155	37
Metoprolol Succinate	Metoprolol Succinate	148	35
Metformin Hcl	Metformin Hcl	139	34
Tamsulosin Hcl	Tamsulosin Hcl	116	29
Hydrochlorothiazide	Hydrochlorothiazide	107	26
Duloxetine Hcl	Duloxetine Hcl	95	26
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	94	94
Meloxicam	Meloxicam	93	28
Allopurinol	Allopurinol	91	21
Pantoprazole Sodium	Pantoprazole Sodium	91	21
Fluoxetine Hcl	Fluoxetine Hcl	84	25
Eliquis	Apixaban	73	18
Metformin Hcl Er	Metformin Hcl	72	21
Warfarin Sodium	Warfarin Sodium	72	suppressed
Jardiance	Empagliflozin	71	13
Xarelto	Rivaroxaban	69	11
Potassium Chloride	Potassium Chloride	68	24
Trazodone Hcl	Trazodone Hcl	67	17
Metoprolol Tartrate	Metoprolol Tartrate	64	12
Ropinirole Hcl	Ropinirole Hcl	60	11
Rosuvastatin Calcium	Rosuvastatin Calcium	60	18
Carvedilol	Carvedilol	59	12
Spironolactone	Spironolactone	57	17
Famotidine	Famotidine	54	16
Albuterol Sulfate Hfa	Albuterol Sulfate	51	16
Prednisone	Prednisone	51	30
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	46	12
Tresiba Flextouch U-100	Insulin Degludec	45	suppressed
Ozempic	Semaglutide	43	suppressed
Montelukast Sodium	Montelukast Sodium	42	17
Clopidogrel	Clopidogrel Bisulfate	41	suppressed
Tramadol Hcl	Tramadol Hcl	41	14
Escitalopram Oxalate	Escitalopram Oxalate	39	suppressed
Mirtazapine	Mirtazapine	38	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	38	27
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	37	suppressed
Trulicity	Dulaglutide	36	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	35	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	33	suppressed
Azithromycin	Azithromycin	33	25
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	33	suppressed
Novolog Flexpen	Insulin Aspart	33	suppressed
Fluticasone Propionate	Fluticasone Propionate	32	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	32	12
Pregabalin	Pregabalin	32	suppressed
Atenolol	Atenolol	31	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	31	suppressed
Lorazepam	Lorazepam	30	suppressed
Pravastatin Sodium	Pravastatin Sodium	29	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Cephalexin	Cephalexin	24	12
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	24	16
Fenofibrate	Fenofibrate	24	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	24	suppressed
Sertraline Hcl	Sertraline Hcl	24	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	23	21
Fenofibrate	Fenofibrate Nanocrystallized	23	suppressed
Mounjaro	Tirzepatide	22	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	22	suppressed
Gemfibrozil	Gemfibrozil	21	suppressed
Januvia	Sitagliptin Phosphate	21	suppressed
Diclofenac Sodium	Diclofenac Sodium	20	suppressed
Memantine Hcl	Memantine Hcl	19	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	19	16
Benazepril Hcl	Benazepril Hcl	18	suppressed
Citalopram Hbr	Citalopram Hydrobromide	18	suppressed
Ondansetron Odt	Ondansetron	18	11
Oxybutynin Chloride	Oxybutynin Chloride	18	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	18	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	18	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	17	suppressed
Bupropion Xl	Bupropion Hcl	17	suppressed
Incruse Ellipta	Umeclidinium Bromide	17	suppressed
Irbesartan	Irbesartan	17	suppressed
Tresiba Flextouch U-200	Insulin Degludec	17	suppressed
Alcohol Prep Pads	Alcohol Antiseptic Pads	16	suppressed
Synthroid	Levothyroxine Sodium	16	suppressed
Alendronate Sodium	Alendronate Sodium	15	suppressed
Donepezil Hcl	Donepezil Hcl	15	suppressed
Enalapril Maleate	Enalapril Maleate	15	suppressed
Humalog Kwikpen U-100	Insulin Lispro	15	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Finasteride	Finasteride	14	suppressed
Glimepiride	Glimepiride	14	suppressed
Hydralazine Hcl	Hydralazine Hcl	14	suppressed
Propranolol Hcl	Propranolol Hcl	14	suppressed
Spiriva Handihaler	Tiotropium Bromide	14	suppressed
Baclofen	Baclofen	13	suppressed
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	13	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	13	suppressed
Methotrexate	Methotrexate Sodium	13	suppressed
Sucralfate	Sucralfate	13	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	13	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	12	suppressed
Emtricitabine-Tenofovir Disop	Emtricitabine/Tenofovir (Tdf)	12	suppressed
Fetzima	Levomilnacipran Hcl	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Ibuprofen	Ibuprofen	12	suppressed
Levofloxacin	Levofloxacin	12	suppressed
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Verapamil Er Pm	Verapamil Hcl	12	suppressed
Bumetanide	Bumetanide	11	suppressed
Metronidazole	Metronidazole	11	suppressed
Novolog	Insulin Aspart	11	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	11	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	11	suppressed
Valacyclovir	Valacyclovir Hcl	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