Healthcare provider profile · identity verified

Robert Niebergall, MD

Internal Medicine · BROKEN ARROW, OK · NPI 1912975012

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	475	142
Levothyroxine Sodium	Levothyroxine Sodium	432	111
Gabapentin	Gabapentin	368	96
Lisinopril	Lisinopril	318	103
Hydrochlorothiazide	Hydrochlorothiazide	278	81
Amlodipine Besylate	Amlodipine Besylate	276	84
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	252	36
Omeprazole	Omeprazole	242	63
Metformin Hcl	Metformin Hcl	232	65
Sertraline Hcl	Sertraline Hcl	223	62
Tamsulosin Hcl	Tamsulosin Hcl	222	65
Metoprolol Succinate	Metoprolol Succinate	219	66
Glimepiride	Glimepiride	203	52
Zolpidem Tartrate	Zolpidem Tartrate	186	35
Montelukast Sodium	Montelukast Sodium	166	49
Furosemide	Furosemide	165	56
Valsartan	Valsartan	160	46
Alprazolam	Alprazolam	156	28
Rosuvastatin Calcium	Rosuvastatin Calcium	154	46
Simvastatin	Simvastatin	152	39
Potassium Chloride	Potassium Chloride	143	42
Albuterol Sulfate Hfa	Albuterol Sulfate	136	50
Losartan Potassium	Losartan Potassium	135	42
Glipizide	Glipizide	127	33
Eliquis	Apixaban	124	27
Clopidogrel	Clopidogrel Bisulfate	123	33
Ezetimibe	Ezetimibe	122	32
Pantoprazole Sodium	Pantoprazole Sodium	114	30
Tramadol Hcl	Tramadol Hcl	111	22
Carvedilol	Carvedilol	109	36
Pravastatin Sodium	Pravastatin Sodium	105	31
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	104	14
Fluticasone Propionate	Fluticasone Propionate	98	34
Farxiga	Dapagliflozin Propanediol	95	19
Allopurinol	Allopurinol	90	28
Meloxicam	Meloxicam	88	29
Metoprolol Tartrate	Metoprolol Tartrate	83	28
Diazepam	Diazepam	80	15
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	76	11
Clonidine Hcl	Clonidine Hcl	75	19
Lovastatin	Lovastatin	75	22
Metformin Hcl Er	Metformin Hcl	75	24
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	75	18
Trazodone Hcl	Trazodone Hcl	74	19
Hydralazine Hcl	Hydralazine Hcl	71	17
Spironolactone	Spironolactone	70	21
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	68	20
Lorazepam	Lorazepam	68	14
Donepezil Hcl	Donepezil Hcl	63	19
Trulicity	Dulaglutide	63	17
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	62	suppressed
Citalopram Hbr	Citalopram Hydrobromide	61	17
Olmesartan Medoxomil	Olmesartan Medoxomil	60	16
Xarelto	Rivaroxaban	59	13
Alendronate Sodium	Alendronate Sodium	56	13
Finasteride	Finasteride	55	18
Ozempic	Semaglutide	53	16
Escitalopram Oxalate	Escitalopram Oxalate	52	18
Estradiol	Estradiol	52	16
Ventolin Hfa	Albuterol Sulfate	52	11
Azithromycin	Azithromycin	51	39
Ezetimibe-Simvastatin	Ezetimibe/Simvastatin	51	15
Memantine Hcl	Memantine Hcl	50	19
Celecoxib	Celecoxib	46	16
Duloxetine Hcl	Duloxetine Hcl	46	12
Oxycodone Hcl	Oxycodone Hcl	46	suppressed
Tizanidine Hcl	Tizanidine Hcl	46	suppressed
Atenolol	Atenolol	45	12
Venlafaxine Hcl Er	Venlafaxine Hcl	44	13
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	43	17
Fenofibrate	Fenofibrate Nanocrystallized	42	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	42	11
Vascepa	Icosapent Ethyl	42	suppressed
Pregabalin	Pregabalin	41	11
Jardiance	Empagliflozin	40	suppressed
Dexmethylphenidate Hcl	Dexmethylphenidate Hcl	39	14
Oxybutynin Chloride	Oxybutynin Chloride	37	12
Aripiprazole	Aripiprazole	36	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	36	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	36	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	35	suppressed
Novolog Flexpen	Insulin Aspart	35	suppressed
Primidone	Primidone	35	suppressed
Famotidine	Famotidine	34	15
Baclofen	Baclofen	33	suppressed
Januvia	Sitagliptin Phosphate	32	suppressed
Warfarin Sodium	Warfarin Sodium	32	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	31	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	31	suppressed
Benazepril Hcl	Benazepril Hcl	30	suppressed
Linzess	Linaclotide	30	suppressed
Paroxetine Hcl	Paroxetine Hcl	29	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	28	suppressed
Glipizide Er	Glipizide	28	suppressed
Ondansetron Hcl	Ondansetron Hcl	28	13
Amitriptyline Hcl	Amitriptyline Hcl	27	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	27	suppressed
Clonazepam	Clonazepam	26	suppressed
Mounjaro	Tirzepatide	26	suppressed
Propranolol Hcl	Propranolol Hcl	26	suppressed
Cephalexin	Cephalexin	25	14
Diclofenac Sodium	Diclofenac Sodium	25	13
Promethazine Hcl	Promethazine Hcl	25	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	24	suppressed
Ondansetron Odt	Ondansetron	24	suppressed
Torsemide	Torsemide	23	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	22	suppressed
Humalog Kwikpen U-100	Insulin Lispro	22	suppressed
Prednisone	Prednisone	22	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Bupropion Xl	Bupropion Hcl	21	suppressed
Buspirone Hcl	Buspirone Hcl	21	suppressed
Chlorthalidone	Chlorthalidone	21	suppressed
Tresiba Flextouch U-200	Insulin Degludec	21	suppressed
Acyclovir	Acyclovir	20	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	20	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	20	13
Esomeprazole Magnesium	Esomeprazole Magnesium	19	suppressed
Fluconazole	Fluconazole	19	suppressed
Ibuprofen	Ibuprofen	19	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	19	suppressed
Topiramate	Topiramate	19	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	18	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	18	suppressed
Myrbetriq	Mirabegron	18	suppressed
Indomethacin	Indomethacin	17	suppressed
Olanzapine	Olanzapine	17	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	16	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	16	suppressed
Labetalol Hcl	Labetalol Hcl	16	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	16	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	16	suppressed
Temazepam	Temazepam	16	suppressed
Testosterone Cypionate	Testosterone Cypionate	16	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	16	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	15	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	15	suppressed
Nitroglycerin	Nitroglycerin	15	suppressed
Sucralfate	Sucralfate	15	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	15	suppressed
Carisoprodol	Carisoprodol	14	suppressed
Digoxin	Digoxin	14	suppressed
Irbesartan	Irbesartan	14	suppressed
Ketoconazole	Ketoconazole	14	suppressed
Levemir Flexpen	Insulin Detemir	14	suppressed
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	14	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	13	suppressed
Gemfibrozil	Gemfibrozil	13	suppressed
Humalog Mix 75-25 Kwikpen	Insulin Lispro Protamin/Lispro	13	suppressed
Lidocaine-Prilocaine	Lidocaine/Prilocaine	13	suppressed
Perphenazine	Perphenazine	13	suppressed
Risperidone	Risperidone	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Symbicort	Budesonide/Formoterol Fumarate	13	suppressed
Trihexyphenidyl Hcl	Trihexyphenidyl Hcl	13	suppressed
Euthyrox	Levothyroxine Sodium	12	suppressed
Ipratropium Bromide	Ipratropium Bromide	12	suppressed
Levetiracetam	Levetiracetam	12	suppressed
Midodrine Hcl	Midodrine Hcl	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Oxycontin	Oxycodone Hcl	12	suppressed
Pradaxa	Dabigatran Etexilate Mesylate	12	suppressed
Ramipril	Ramipril	12	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	12	suppressed
Genvoya	Elviteg/Cob/Emtri/Tenof Alafen	11	suppressed
Naproxen	Naproxen	11	suppressed
Nystatin	Nystatin	11	suppressed
Synthroid	Levothyroxine Sodium	11	suppressed
Telmisartan	Telmisartan	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