Healthcare provider profile · identity verified

Todd Horstman, MD

Family Practice · WARRENTON, MO · NPI 1275913790

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	555	154
Lisinopril	Lisinopril	505	126
Levothyroxine Sodium	Levothyroxine Sodium	416	95
Pantoprazole Sodium	Pantoprazole Sodium	299	80
Albuterol Sulfate Hfa	Albuterol Sulfate	203	63
Metformin Hcl	Metformin Hcl	201	62
Amlodipine Besylate	Amlodipine Besylate	200	54
Gabapentin	Gabapentin	196	61
Omeprazole	Omeprazole	195	48
Losartan Potassium	Losartan Potassium	171	58
Furosemide	Furosemide	167	48
Eliquis	Apixaban	157	30
Escitalopram Oxalate	Escitalopram Oxalate	153	41
Fluticasone Propionate	Fluticasone Propionate	153	58
Rosuvastatin Calcium	Rosuvastatin Calcium	152	41
Simvastatin	Simvastatin	145	32
Pravastatin Sodium	Pravastatin Sodium	141	35
Tamsulosin Hcl	Tamsulosin Hcl	140	40
Metoprolol Tartrate	Metoprolol Tartrate	137	33
Metoprolol Succinate	Metoprolol Succinate	132	40
Duloxetine Hcl	Duloxetine Hcl	123	31
Trazodone Hcl	Trazodone Hcl	122	32
Ozempic	Semaglutide	120	24
Warfarin Sodium	Warfarin Sodium	115	15
Clopidogrel	Clopidogrel Bisulfate	112	34
Sertraline Hcl	Sertraline Hcl	105	28
Spironolactone	Spironolactone	103	25
Famotidine	Famotidine	101	19
Potassium Chloride	Potassium Chloride	94	26
Meloxicam	Meloxicam	91	37
Montelukast Sodium	Montelukast Sodium	91	21
Allopurinol	Allopurinol	89	27
Glimepiride	Glimepiride	88	24
Bupropion Xl	Bupropion Hcl	85	25
Hydrochlorothiazide	Hydrochlorothiazide	83	27
Alprazolam	Alprazolam	77	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	76	21
Mounjaro	Tirzepatide	74	18
Arexvy	Rsvpref3 Antigen/As01e/Pf	73	73
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	71	20
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	70	19
Fluoxetine Hcl	Fluoxetine Hcl	66	15
Metformin Hcl Er	Metformin Hcl	65	19
Mirtazapine	Mirtazapine	64	17
Farxiga	Dapagliflozin Propanediol	61	14
Doxycycline Hyclate	Doxycycline Hyclate	60	46
Hydroxyzine Hcl	Hydroxyzine Hcl	58	15
Citalopram Hbr	Citalopram Hydrobromide	57	13
Quetiapine Fumarate	Quetiapine Fumarate	56	12
Jardiance	Empagliflozin	55	16
Pregabalin	Pregabalin	55	suppressed
Glipizide	Glipizide	54	18
Prednisone	Prednisone	54	42
Amitriptyline Hcl	Amitriptyline Hcl	52	13
Tizanidine Hcl	Tizanidine Hcl	49	suppressed
Carvedilol	Carvedilol	48	15
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	47	24
Celecoxib	Celecoxib	45	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	45	12
Triamcinolone Acetonide	Triamcinolone Acetonide	45	35
Spiriva Respimat	Tiotropium Bromide	43	suppressed
Atenolol	Atenolol	42	12
Lovastatin	Lovastatin	41	13
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	40	23
Januvia	Sitagliptin Phosphate	40	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	40	suppressed
Xarelto	Rivaroxaban	38	suppressed
Ezetimibe	Ezetimibe	37	15
Myrbetriq	Mirabegron	37	suppressed
Paroxetine Hcl	Paroxetine Hcl	37	11
Sumatriptan Succinate	Sumatriptan Succinate	37	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	37	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	36	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	36	suppressed
Ropinirole Hcl	Ropinirole Hcl	36	suppressed
Clonazepam	Clonazepam	34	suppressed
Fenofibrate	Fenofibrate,micronized	34	suppressed
Symbicort	Budesonide/Formoterol Fumarate	33	suppressed
Trulicity	Dulaglutide	33	11
Alendronate Sodium	Alendronate Sodium	32	11
Buspirone Hcl	Buspirone Hcl	32	suppressed
Rizatriptan	Rizatriptan Benzoate	31	suppressed
Fenofibrate	Fenofibrate	30	suppressed
Valacyclovir	Valacyclovir Hcl	30	13
Donepezil Hcl	Donepezil Hcl	28	suppressed
Meclizine Hcl	Meclizine Hcl	28	14
Amoxicillin	Amoxicillin	27	24
Midodrine Hcl	Midodrine Hcl	27	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	27	suppressed
Propranolol Hcl	Propranolol Hcl	27	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	26	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	25	suppressed
Testosterone Cypionate	Testosterone Cypionate	25	suppressed
Tresiba Flextouch U-200	Insulin Degludec	25	suppressed
Ventolin Hfa	Albuterol Sulfate	25	12
Aripiprazole	Aripiprazole	24	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	23	suppressed
Finasteride	Finasteride	23	suppressed
Topiramate	Topiramate	23	suppressed
Diclofenac Sodium	Diclofenac Sodium	22	12
Hydralazine Hcl	Hydralazine Hcl	22	suppressed
Cephalexin	Cephalexin	21	18
Ondansetron Hcl	Ondansetron Hcl	21	suppressed
Propranolol Hcl Er	Propranolol Hcl	21	suppressed
Acyclovir	Acyclovir	20	suppressed
Glipizide Er	Glipizide	20	suppressed
Varenicline Tartrate	Varenicline Tartrate	19	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	18	13
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	18	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	17	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	17	suppressed
Lamotrigine	Lamotrigine	17	suppressed
Naproxen	Naproxen	17	11
Combivent Respimat	Ipratropium/Albuterol Sulfate	16	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	16	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	16	suppressed
Nystatin	Nystatin	16	suppressed
Ondansetron Odt	Ondansetron	16	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	15	suppressed
Chlorthalidone	Chlorthalidone	14	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	14	suppressed
Ketoconazole	Ketoconazole	14	suppressed
Memantine Hcl	Memantine Hcl	14	suppressed
Nebivolol Hcl	Nebivolol Hcl	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	14	14
Pioglitazone Hcl	Pioglitazone Hcl	14	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	13	suppressed
Synjardy Xr	Empagliflozin/Metformin Hcl	13	suppressed
Synthroid	Levothyroxine Sodium	13	suppressed
Arnuity Ellipta	Fluticasone Furoate	12	suppressed
Calcitriol	Calcitriol	12	suppressed
Estradiol	Estradiol	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Lithium Carbonate	Lithium Carbonate	12	suppressed
Tramadol Hcl	Tramadol Hcl	12	11
Byetta	Exenatide	11	suppressed
Eszopiclone	Eszopiclone	11	suppressed
Humalog Kwikpen U-100	Insulin Lispro	11	suppressed
Incruse Ellipta	Umeclidinium Bromide	11	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	11	suppressed
Levofloxacin	Levofloxacin	11	suppressed
Loperamide	Loperamide Hcl	11	suppressed
Primidone	Primidone	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	11	suppressed
Temazepam	Temazepam	11	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	11	suppressed
Ultra-Fine Short 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