Healthcare provider profile · identity verified

Donald Wayne Aga, MD

Internal Medicine · HOUSTON, TX · NPI 1093749103

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	573	162
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	311	311
Amlodipine Besylate	Amlodipine Besylate	265	76
Losartan Potassium	Losartan Potassium	210	57
Shingrix	Varicella-Zoster Ge/As01b/Pf	210	191
Levothyroxine Sodium	Levothyroxine Sodium	203	52
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	160	160
Lisinopril	Lisinopril	150	40
Tamsulosin Hcl	Tamsulosin Hcl	137	38
Hydrochlorothiazide	Hydrochlorothiazide	134	35
Metformin Hcl	Metformin Hcl	133	42
Omeprazole	Omeprazole	131	35
Pravastatin Sodium	Pravastatin Sodium	122	34
Metoprolol Succinate	Metoprolol Succinate	119	32
Pantoprazole Sodium	Pantoprazole Sodium	118	32
Fluticasone Propionate	Fluticasone Propionate	93	31
Atenolol	Atenolol	90	25
Allopurinol	Allopurinol	89	23
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	89	23
Buspirone Hcl	Buspirone Hcl	78	23
Simvastatin	Simvastatin	71	16
Carvedilol	Carvedilol	67	19
Eliquis	Apixaban	67	16
Furosemide	Furosemide	66	23
Gabapentin	Gabapentin	65	16
Albuterol Sulfate Hfa	Albuterol Sulfate	62	17
Mirtazapine	Mirtazapine	57	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	55	17
Clopidogrel	Clopidogrel Bisulfate	53	15
Finasteride	Finasteride	49	14
Citalopram Hbr	Citalopram Hydrobromide	47	13
Potassium Chloride	Potassium Chloride	47	13
Duloxetine Hcl	Duloxetine Hcl	42	suppressed
Famotidine	Famotidine	39	suppressed
Alendronate Sodium	Alendronate Sodium	38	11
Glimepiride	Glimepiride	37	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	36	suppressed
Alprazolam	Alprazolam	35	suppressed
Tizanidine Hcl	Tizanidine Hcl	35	11
Ozempic	Semaglutide	32	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	29	suppressed
Ramipril	Ramipril	29	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	27	suppressed
Tramadol Hcl	Tramadol Hcl	27	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	27	suppressed
Sertraline Hcl	Sertraline Hcl	26	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	25	suppressed
Sildenafil Citrate	Sildenafil Citrate	25	suppressed
Indapamide	Indapamide	24	suppressed
Spironolactone	Spironolactone	23	suppressed
Trazodone Hcl	Trazodone Hcl	23	suppressed
Clonazepam	Clonazepam	22	suppressed
Meloxicam	Meloxicam	22	suppressed
Warfarin Sodium	Warfarin Sodium	22	suppressed
Valacyclovir	Valacyclovir Hcl	21	suppressed
Valsartan	Valsartan	21	suppressed
Donepezil Hcl	Donepezil Hcl	20	suppressed
Azelastine Hcl	Azelastine Hcl	18	suppressed
Ezetimibe	Ezetimibe	18	suppressed
Nifedipine Er	Nifedipine	18	suppressed
Azithromycin	Azithromycin	17	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Propranolol Hcl Er	Propranolol Hcl	17	suppressed
Xarelto	Rivaroxaban	16	suppressed
Montelukast Sodium	Montelukast Sodium	15	suppressed
Topiramate	Topiramate	15	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	14	suppressed
Jantoven	Warfarin Sodium	14	suppressed
Jardiance	Empagliflozin	14	suppressed
Prednisone	Prednisone	14	suppressed
Synthroid	Levothyroxine Sodium	14	suppressed
Verapamil Er	Verapamil Hcl	14	suppressed
Colchicine	Colchicine	13	suppressed
Galantamine Er	Galantamine Hbr	13	suppressed
Methylprednisolone	Methylprednisolone	13	12
Bupropion Hcl Sr	Bupropion Hcl	12	suppressed
Diclofenac Sodium	Diclofenac Sodium	12	suppressed
Latanoprost	Latanoprost	12	suppressed
Lovastatin	Lovastatin	12	suppressed
Pregabalin	Pregabalin	12	suppressed
Testosterone	Testosterone	12	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	11	suppressed
Metformin Hcl Er	Metformin Hcl	11	suppressed
Tresiba Flextouch U-100	Insulin Degludec	11	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	11	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	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