Healthcare provider profile · identity verified

James Warren Siler, MD

Internal Medicine · SPRINGFIELD, MO · NPI 1114996907

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	801	250
Levothyroxine Sodium	Levothyroxine Sodium	510	139
Losartan Potassium	Losartan Potassium	420	133
Rosuvastatin Calcium	Rosuvastatin Calcium	373	118
Amlodipine Besylate	Amlodipine Besylate	340	110
Albuterol Sulfate Hfa	Albuterol Sulfate	298	72
Gabapentin	Gabapentin	280	79
Omeprazole	Omeprazole	278	84
Metformin Hcl	Metformin Hcl	249	70
Pantoprazole Sodium	Pantoprazole Sodium	221	68
Lisinopril	Lisinopril	215	77
Carvedilol	Carvedilol	211	63
Trazodone Hcl	Trazodone Hcl	210	56
Furosemide	Furosemide	192	55
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	180	53
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	167	51
Tamsulosin Hcl	Tamsulosin Hcl	166	62
Metoprolol Succinate	Metoprolol Succinate	161	50
Potassium Chloride	Potassium Chloride	160	55
Metformin Hcl Er	Metformin Hcl	158	52
Eliquis	Apixaban	144	40
Hydrochlorothiazide	Hydrochlorothiazide	137	47
Sertraline Hcl	Sertraline Hcl	136	48
Metoprolol Tartrate	Metoprolol Tartrate	135	41
Alprazolam	Alprazolam	134	49
Tizanidine Hcl	Tizanidine Hcl	130	32
Tramadol Hcl	Tramadol Hcl	130	35
Allopurinol	Allopurinol	126	40
Meloxicam	Meloxicam	117	43
Simvastatin	Simvastatin	111	39
Montelukast Sodium	Montelukast Sodium	92	24
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	90	31
Finasteride	Finasteride	88	29
Fluticasone Propionate	Fluticasone Propionate	86	38
Clonazepam	Clonazepam	81	19
Duloxetine Hcl	Duloxetine Hcl	81	19
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	73	17
Escitalopram Oxalate	Escitalopram Oxalate	72	23
Zolpidem Tartrate	Zolpidem Tartrate	71	18
Pregabalin	Pregabalin	70	19
Jardiance	Empagliflozin	69	22
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	69	18
Bupropion Xl	Bupropion Hcl	68	24
Clopidogrel	Clopidogrel Bisulfate	68	24
Spironolactone	Spironolactone	68	24
Trulicity	Dulaglutide	68	suppressed
Baclofen	Baclofen	66	17
Xarelto	Rivaroxaban	64	17
Synthroid	Levothyroxine Sodium	63	12
Ozempic	Semaglutide	60	12
Nitroglycerin	Nitroglycerin	59	25
Mounjaro	Tirzepatide	57	suppressed
Topiramate	Topiramate	57	12
Venlafaxine Hcl Er	Venlafaxine Hcl	57	16
Atenolol	Atenolol	55	20
Pravastatin Sodium	Pravastatin Sodium	54	20
Glimepiride	Glimepiride	53	19
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	51	17
Farxiga	Dapagliflozin Propanediol	49	14
Fenofibrate	Fenofibrate	49	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	49	11
Buspirone Hcl	Buspirone Hcl	44	13
Citalopram Hbr	Citalopram Hydrobromide	44	17
Hydralazine Hcl	Hydralazine Hcl	44	14
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	43	11
Mirtazapine	Mirtazapine	41	13
Alendronate Sodium	Alendronate Sodium	40	13
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	38	suppressed
Amiodarone Hcl	Amiodarone Hcl	37	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	37	12
Famotidine	Famotidine	36	13
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	33	suppressed
Bumetanide	Bumetanide	33	11
Isosorbide Mononitrate Er	Isosorbide Mononitrate	33	11
Ibuprofen	Ibuprofen	32	suppressed
Warfarin Sodium	Warfarin Sodium	32	11
Ropinirole Hcl	Ropinirole Hcl	31	suppressed
Klor-Con M20	Potassium Chloride	30	11
Ondansetron Odt	Ondansetron	30	15
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	29	11
Ezetimibe	Ezetimibe	29	11
Irbesartan	Irbesartan	29	suppressed
Lovastatin	Lovastatin	29	11
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	28	20
Lorazepam	Lorazepam	27	suppressed
Celecoxib	Celecoxib	26	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	26	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	26	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	25	11
Breo Ellipta	Fluticasone/Vilanterol	24	suppressed
Diazepam	Diazepam	24	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	24	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	24	suppressed
Paroxetine Hcl	Paroxetine Hcl	24	suppressed
Estradiol	Estradiol	23	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	23	suppressed
Ventolin Hfa	Albuterol Sulfate	23	suppressed
Chlorthalidone	Chlorthalidone	22	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	22	12
Terbinafine Hcl	Terbinafine Hcl	22	17
Arexvy	Rsvpref3 Antigen/As01e/Pf	21	21
Glipizide	Glipizide	21	suppressed
Methocarbamol	Methocarbamol	21	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	21	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	20	suppressed
Naproxen	Naproxen	19	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	18	suppressed
Digoxin	Digoxin	18	suppressed
Methylprednisolone	Methylprednisolone	18	14
Prednisone	Prednisone	18	suppressed
Testosterone Cypionate	Testosterone Cypionate	18	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	17	17
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	17	12
Meclizine Hcl	Meclizine Hcl	17	suppressed
Myrbetriq	Mirabegron	17	suppressed
Novolog Flexpen	Insulin Aspart	17	suppressed
Symbicort	Budesonide/Formoterol Fumarate	17	suppressed
Temazepam	Temazepam	17	suppressed
Testosterone	Testosterone	17	suppressed
Azelastine Hcl	Azelastine Hcl	16	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	16	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Oxycodone Hcl	Oxycodone Hcl	16	12
Tresiba Flextouch U-100	Insulin Degludec	16	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	15	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	15	12
Propranolol Hcl	Propranolol Hcl	15	suppressed
Spiriva Respimat	Tiotropium Bromide	15	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	14	13
Metoclopramide Hcl	Metoclopramide Hcl	14	suppressed
Ondansetron Hcl	Ondansetron Hcl	14	suppressed
Valacyclovir	Valacyclovir Hcl	14	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	14	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	13	suppressed
Clonidine Hcl	Clonidine Hcl	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Lansoprazole	Lansoprazole	13	suppressed
Methimazole	Methimazole	13	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	13	12
Pioglitazone Hcl	Pioglitazone Hcl	13	suppressed
Valsartan	Valsartan	13	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	12	suppressed
Cephalexin	Cephalexin	12	11
Galantamine Hbr	Galantamine Hbr	12	suppressed
Indomethacin	Indomethacin	12	suppressed
Memantine Hcl	Memantine Hcl	12	suppressed
Midodrine Hcl	Midodrine Hcl	12	suppressed
Repatha Sureclick	Evolocumab	12	suppressed
Rizatriptan	Rizatriptan Benzoate	12	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Liothyronine Sodium	Liothyronine Sodium	11	suppressed
Loperamide	Loperamide Hcl	11	suppressed
Nystatin	Nystatin	11	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	11	suppressed
Telmisartan	Telmisartan	11	suppressed
Telmisartan-Hydrochlorothiazid	Telmisartan/Hydrochlorothiazid	11	suppressed
Torsemide	Torsemide	11	suppressed
Tresiba Flextouch U-200	Insulin Degludec	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