Healthcare provider profile · identity verified

Majonel Ontanillas, MD

Internal Medicine · LAS VEGAS, NV · NPI 1235105313

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	1007	334
Amlodipine Besylate	Amlodipine Besylate	539	179
Levothyroxine Sodium	Levothyroxine Sodium	452	132
Losartan Potassium	Losartan Potassium	426	140
Lisinopril	Lisinopril	419	127
Omeprazole	Omeprazole	296	109
Metformin Hcl	Metformin Hcl	292	88
Rosuvastatin Calcium	Rosuvastatin Calcium	269	92
Metoprolol Succinate	Metoprolol Succinate	248	86
Tamsulosin Hcl	Tamsulosin Hcl	232	78
Gabapentin	Gabapentin	215	82
Simvastatin	Simvastatin	189	64
Albuterol Sulfate Hfa	Albuterol Sulfate	184	61
Allopurinol	Allopurinol	184	52
Glipizide Er	Glipizide	152	45
Hydrochlorothiazide	Hydrochlorothiazide	144	50
Alendronate Sodium	Alendronate Sodium	139	47
Metoprolol Tartrate	Metoprolol Tartrate	133	42
Metformin Hcl Er	Metformin Hcl	128	44
Carvedilol	Carvedilol	120	38
Fluticasone Propionate	Fluticasone Propionate	119	62
Furosemide	Furosemide	115	47
Pantoprazole Sodium	Pantoprazole Sodium	108	40
Potassium Chloride	Potassium Chloride	96	35
Eliquis	Apixaban	93	20
Famotidine	Famotidine	91	36
Montelukast Sodium	Montelukast Sodium	82	26
Atenolol	Atenolol	80	26
Pravastatin Sodium	Pravastatin Sodium	78	25
Triamcinolone Acetonide	Triamcinolone Acetonide	74	48
Glipizide	Glipizide	72	23
Sertraline Hcl	Sertraline Hcl	70	19
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	62	20
Meclizine Hcl	Meclizine Hcl	61	29
Ozempic	Semaglutide	60	12
Trazodone Hcl	Trazodone Hcl	55	22
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	54	17
Fenofibrate	Fenofibrate	53	18
Methylprednisolone	Methylprednisolone	53	50
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	51	19
Hydroxyzine Hcl	Hydroxyzine Hcl	50	22
Warfarin Sodium	Warfarin Sodium	50	suppressed
Finasteride	Finasteride	48	17
Azithromycin	Azithromycin	47	39
Clopidogrel	Clopidogrel Bisulfate	45	18
Folic Acid	Folic Acid	45	12
Meloxicam	Meloxicam	43	13
Glimepiride	Glimepiride	42	14
Jardiance	Empagliflozin	41	suppressed
Benazepril Hcl	Benazepril Hcl	40	suppressed
Hydralazine Hcl	Hydralazine Hcl	40	16
Pioglitazone Hcl	Pioglitazone Hcl	40	12
Ibuprofen	Ibuprofen	39	20
Spironolactone	Spironolactone	39	14
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	38	12
Baclofen	Baclofen	37	23
Citalopram Hbr	Citalopram Hydrobromide	37	16
Escitalopram Oxalate	Escitalopram Oxalate	36	12
Clonidine Hcl	Clonidine Hcl	35	14
Trulicity	Dulaglutide	33	suppressed
Ezetimibe	Ezetimibe	32	13
Vitamin D2	Ergocalciferol (Vitamin D2)	32	17
Ondansetron Odt	Ondansetron	31	11
Sildenafil Citrate	Sildenafil Citrate	31	11
Xarelto	Rivaroxaban	31	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	30	24
Quetiapine Fumarate	Quetiapine Fumarate	30	suppressed
Ropinirole Hcl	Ropinirole Hcl	30	12
Irbesartan	Irbesartan	29	suppressed
Lovastatin	Lovastatin	29	suppressed
Nifedipine Er	Nifedipine	29	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	28	suppressed
Terazosin Hcl	Terazosin Hcl	27	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	26	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	26	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	26	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	26	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	25	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	25	suppressed
Valsartan	Valsartan	25	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	24	suppressed
Tradjenta	Linagliptin	24	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	23	21
Cephalexin	Cephalexin	23	20
Donepezil Hcl	Donepezil Hcl	23	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	23	suppressed
Diclofenac Sodium	Diclofenac Sodium	21	12
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	20	suppressed
Naproxen	Naproxen	20	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	19	suppressed
Farxiga	Dapagliflozin Propanediol	19	suppressed
Mirtazapine	Mirtazapine	18	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	18	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	17	suppressed
Prednisone	Prednisone	17	15
Colchicine	Colchicine	16	suppressed
Ondansetron Hcl	Ondansetron Hcl	16	suppressed
Tizanidine Hcl	Tizanidine Hcl	16	suppressed
Breo Ellipta	Fluticasone/Vilanterol	15	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	15	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	15	suppressed
Symbicort	Budesonide/Formoterol Fumarate	15	suppressed
Tramadol Hcl	Tramadol Hcl	15	13
Fenofibrate	Fenofibrate,micronized	14	suppressed
Labetalol Hcl	Labetalol Hcl	14	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	14	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	13	suppressed
Duloxetine Hcl	Duloxetine Hcl	13	suppressed
Etodolac	Etodolac	13	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	13	suppressed
Paroxetine Hcl	Paroxetine Hcl	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	12	suppressed
Humalog Kwikpen U-100	Insulin Lispro	12	suppressed
Levalbuterol Tartrate Hfa	Levalbuterol Tartrate	12	suppressed
Levemir Flexpen	Insulin Detemir	12	suppressed
Propranolol Hcl	Propranolol Hcl	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	12
Torsemide	Torsemide	12	suppressed
Ventolin Hfa	Albuterol Sulfate	12	suppressed
Verapamil Er	Verapamil Hcl	12	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Mupirocin	Mupirocin	11	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	11	suppressed
Nystatin	Nystatin	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