Healthcare provider profile · identity verified

Oswald H. Thomas, MD

Family Practice · MEMPHIS, TN · NPI 1437246733

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	554	169
Amlodipine Besylate	Amlodipine Besylate	542	169
Alprazolam	Alprazolam	348	66
Omeprazole	Omeprazole	336	108
Hydrochlorothiazide	Hydrochlorothiazide	322	103
Rosuvastatin Calcium	Rosuvastatin Calcium	322	85
Gabapentin	Gabapentin	306	90
Lisinopril	Lisinopril	306	90
Levothyroxine Sodium	Levothyroxine Sodium	267	76
Losartan Potassium	Losartan Potassium	264	82
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	255	54
Furosemide	Furosemide	251	78
Pantoprazole Sodium	Pantoprazole Sodium	233	70
Metformin Hcl	Metformin Hcl	232	71
Tamsulosin Hcl	Tamsulosin Hcl	229	68
Montelukast Sodium	Montelukast Sodium	222	64
Potassium Chloride	Potassium Chloride	219	67
Ezetimibe	Ezetimibe	197	57
Simvastatin	Simvastatin	197	55
Metoprolol Tartrate	Metoprolol Tartrate	195	58
Metoprolol Succinate	Metoprolol Succinate	192	50
Carvedilol	Carvedilol	175	54
Eliquis	Apixaban	168	33
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	166	30
Lorazepam	Lorazepam	163	38
Clopidogrel	Clopidogrel Bisulfate	156	51
Meloxicam	Meloxicam	156	52
Albuterol Sulfate Hfa	Albuterol Sulfate	146	60
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	129	42
Pravastatin Sodium	Pravastatin Sodium	126	39
Trazodone Hcl	Trazodone Hcl	126	36
Duloxetine Hcl	Duloxetine Hcl	122	33
Escitalopram Oxalate	Escitalopram Oxalate	120	34
Atenolol	Atenolol	116	35
Pioglitazone Hcl	Pioglitazone Hcl	105	30
Glipizide	Glipizide	101	31
Tramadol Hcl	Tramadol Hcl	101	27
Zolpidem Tartrate	Zolpidem Tartrate	98	19
Metformin Hcl Er	Metformin Hcl	91	30
Temazepam	Temazepam	91	17
Famotidine	Famotidine	87	22
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	85	25
Methylprednisolone	Methylprednisolone	81	50
Citalopram Hbr	Citalopram Hydrobromide	78	21
Pregabalin	Pregabalin	78	19
Alendronate Sodium	Alendronate Sodium	77	19
Clonazepam	Clonazepam	77	15
Celecoxib	Celecoxib	76	28
Fluticasone Propionate	Fluticasone Propionate	74	36
Ozempic	Semaglutide	74	15
Januvia	Sitagliptin Phosphate	71	17
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	71	23
Azelastine Hcl	Azelastine Hcl	68	37
Tizanidine Hcl	Tizanidine Hcl	68	24
Terazosin Hcl	Terazosin Hcl	67	15
Aripiprazole	Aripiprazole	66	14
Finasteride	Finasteride	66	18
Mounjaro	Tirzepatide	65	11
Fenofibrate	Fenofibrate Nanocrystallized	64	17
Allopurinol	Allopurinol	63	23
Diazepam	Diazepam	62	14
Farxiga	Dapagliflozin Propanediol	62	13
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	61	41
Oxycodone Hcl	Oxycodone Hcl	61	suppressed
Azithromycin	Azithromycin	59	53
Venlafaxine Hcl Er	Venlafaxine Hcl	59	12
Hydralazine Hcl	Hydralazine Hcl	57	20
Prednisone	Prednisone	57	17
Sertraline Hcl	Sertraline Hcl	56	22
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	54	14
Ondansetron Hcl	Ondansetron Hcl	54	26
Quetiapine Fumarate	Quetiapine Fumarate	54	17
Spironolactone	Spironolactone	53	13
Glimepiride	Glimepiride	52	15
Oxybutynin Chloride	Oxybutynin Chloride	50	14
Hydroxyzine Hcl	Hydroxyzine Hcl	48	17
Clonidine Hcl	Clonidine Hcl	47	19
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	47	19
Lansoprazole	Lansoprazole	47	13
Xarelto	Rivaroxaban	47	15
Donepezil Hcl	Donepezil Hcl	44	14
Estradiol	Estradiol	44	11
Fluoxetine Hcl	Fluoxetine Hcl	44	16
Gemfibrozil	Gemfibrozil	44	11
Triamcinolone Acetonide	Triamcinolone Acetonide	43	24
Amitriptyline Hcl	Amitriptyline Hcl	42	suppressed
Carisoprodol	Carisoprodol	42	suppressed
Lovastatin	Lovastatin	40	14
Nifedipine Er	Nifedipine	39	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	39	suppressed
Buspirone Hcl	Buspirone Hcl	38	suppressed
Solifenacin Succinate	Solifenacin Succinate	38	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	37	21
Vitamin D2	Ergocalciferol (Vitamin D2)	37	11
Esomeprazole Magnesium	Esomeprazole Magnesium	36	13
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	36	12
Spiriva Handihaler	Tiotropium Bromide	36	suppressed
Jardiance	Empagliflozin	35	11
Meclizine Hcl	Meclizine Hcl	35	16
Nortriptyline Hcl	Nortriptyline Hcl	35	suppressed
Promethazine Hcl	Promethazine Hcl	34	suppressed
Glipizide Er	Glipizide	33	11
Oxybutynin Chloride Er	Oxybutynin Chloride	33	suppressed
Folic Acid	Folic Acid	32	14
Methocarbamol	Methocarbamol	32	17
Propranolol Hcl	Propranolol Hcl	32	suppressed
Nystatin	Nystatin	31	15
Benazepril Hcl	Benazepril Hcl	30	suppressed
Irbesartan	Irbesartan	30	suppressed
Mupirocin	Mupirocin	30	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	30	suppressed
Warfarin Sodium	Warfarin Sodium	30	suppressed
Bupropion Hcl Sr	Bupropion Hcl	29	suppressed
Cefuroxime	Cefuroxime Axetil	28	18
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	28	12
Humulin N Kwikpen	Insulin Nph Human Isophane	28	suppressed
Linzess	Linaclotide	28	suppressed
Ramipril	Ramipril	28	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	28	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	27	11
Ibuprofen	Ibuprofen	27	16
Telmisartan	Telmisartan	27	suppressed
Baclofen	Baclofen	26	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	26	suppressed
Diclofenac Sodium	Diclofenac Sodium	26	11
Nystop	Nystatin	26	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	25	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	25	11
Entresto	Sacubitril/Valsartan	25	suppressed
Memantine Hcl	Memantine Hcl	25	suppressed
Paroxetine Hcl	Paroxetine Hcl	25	suppressed
Trulicity	Dulaglutide	25	suppressed
Amiodarone Hcl	Amiodarone Hcl	24	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	24	suppressed
Colestipol Hcl	Colestipol Hcl	24	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	24	suppressed
Ropinirole Hcl	Ropinirole Hcl	24	suppressed
Fenofibric Acid	Fenofibric Acid (Choline)	23	suppressed
Humalog Kwikpen U-100	Insulin Lispro	23	suppressed
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	23	suppressed
Naproxen	Naproxen	23	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	23	20
Telmisartan-Hydrochlorothiazid	Telmisartan/Hydrochlorothiazid	22	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	21	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Enalapril Maleate	Enalapril Maleate	19	suppressed
Fentanyl	Fentanyl	19	suppressed
Primidone	Primidone	19	suppressed
Sotalol	Sotalol Hcl	19	suppressed
Sucralfate	Sucralfate	19	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	18	12
Fosinopril Sodium	Fosinopril Sodium	18	suppressed
Methimazole	Methimazole	18	suppressed
Novolog Flexpen	Insulin Aspart	18	suppressed
Torsemide	Torsemide	18	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	17	suppressed
Amoxicillin	Amoxicillin	17	13
Bupropion Xl	Bupropion Hcl	17	suppressed
Dexlansoprazole Dr	Dexlansoprazole	17	suppressed
Insulin Lispro	Insulin Lispro	17	suppressed
Levetiracetam	Levetiracetam	17	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	17	17
Chlorthalidone	Chlorthalidone	16	suppressed
Colchicine	Colchicine	16	suppressed
Digoxin	Digoxin	16	suppressed
Fenofibrate	Fenofibrate	16	suppressed
Fluconazole	Fluconazole	16	11
Ipratropium Bromide	Ipratropium Bromide	16	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	16	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	15	suppressed
Dutasteride	Dutasteride	15	suppressed
Hydrocortisone	Hydrocortisone	15	suppressed
Indapamide	Indapamide	15	suppressed
Ketoconazole	Ketoconazole	15	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	15	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	15	suppressed
Fenofibrate	Fenofibrate,micronized	14	suppressed
Klor-Con M20	Potassium Chloride	14	suppressed
Levofloxacin	Levofloxacin	14	11
Nabumetone	Nabumetone	14	suppressed
Ranolazine Er	Ranolazine	14	suppressed
Symbicort	Budesonide/Formoterol Fumarate	14	suppressed
Topiramate	Topiramate	14	suppressed
Ventolin Hfa	Albuterol Sulfate	14	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	13	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	13	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	13	suppressed
Janumet Xr	Sitagliptin Phos/Metformin Hcl	13	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Clonidine	Clonidine	12	suppressed
Lamotrigine	Lamotrigine	12	suppressed
Metolazone	Metolazone	12	suppressed
Mirtazapine	Mirtazapine	12	suppressed
Naloxone Hcl	Naloxone Hcl	12	suppressed
Nebivolol Hcl	Nebivolol Hcl	12	suppressed
Nitroglycerin	Nitroglycerin	12	suppressed
Breo Ellipta	Fluticasone/Vilanterol	11	suppressed
Doxepin Hcl	Doxepin Hcl	11	suppressed
Lithium Carbonate Er	Lithium Carbonate	11	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	11	suppressed
Sodium Chloride	Sodium Chloride Irrig Solution	11	suppressed
Synthroid	Levothyroxine Sodium	11	suppressed
Varenicline Tartrate	Varenicline Tartrate	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