Healthcare provider profile · identity verified

Gene O. Bigham, M.D.

Internal Medicine · DESOTO, TX · NPI 1538126719

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	1560	294
Amlodipine Besylate	Amlodipine Besylate	1181	232
Levothyroxine Sodium	Levothyroxine Sodium	902	131
Donepezil Hcl	Donepezil Hcl	633	114
Furosemide	Furosemide	629	107
Gabapentin	Gabapentin	619	108
Losartan Potassium	Losartan Potassium	563	128
Lisinopril	Lisinopril	553	102
Divalproex Sodium	Divalproex Sodium	537	83
Tamsulosin Hcl	Tamsulosin Hcl	486	90
Sertraline Hcl	Sertraline Hcl	477	85
Memantine Hcl	Memantine Hcl	465	78
Eliquis	Apixaban	462	61
Potassium Chloride	Potassium Chloride	454	76
Metformin Hcl	Metformin Hcl	434	76
Metoprolol Tartrate	Metoprolol Tartrate	419	66
Omeprazole	Omeprazole	416	84
Trazodone Hcl	Trazodone Hcl	413	93
Carvedilol	Carvedilol	407	73
Mirtazapine	Mirtazapine	397	70
Pantoprazole Sodium	Pantoprazole Sodium	394	82
Tramadol Hcl	Tramadol Hcl	361	80
Metoprolol Succinate	Metoprolol Succinate	351	73
Lorazepam	Lorazepam	335	58
Quetiapine Fumarate	Quetiapine Fumarate	304	42
Levetiracetam	Levetiracetam	295	40
Clopidogrel	Clopidogrel Bisulfate	282	55
Hydralazine Hcl	Hydralazine Hcl	236	40
Buspirone Hcl	Buspirone Hcl	229	41
Famotidine	Famotidine	227	53
Montelukast Sodium	Montelukast Sodium	221	50
Nifedipine Er	Nifedipine	219	35
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	216	42
Escitalopram Oxalate	Escitalopram Oxalate	212	41
Duloxetine Hcl	Duloxetine Hcl	199	33
Simvastatin	Simvastatin	188	32
Citalopram Hbr	Citalopram Hydrobromide	177	26
Finasteride	Finasteride	176	40
Latanoprost	Latanoprost	173	32
Rosuvastatin Calcium	Rosuvastatin Calcium	168	39
Fluticasone Propionate	Fluticasone Propionate	167	57
Risperidone	Risperidone	165	29
Gemtesa	Vibegron	152	13
Xarelto	Rivaroxaban	152	15
Hydrochlorothiazide	Hydrochlorothiazide	150	31
Acetaminophen-Codeine	Acetaminophen With Codeine	139	36
Januvia	Sitagliptin Phosphate	139	12
Pravastatin Sodium	Pravastatin Sodium	132	30
Tizanidine Hcl	Tizanidine Hcl	128	20
Meloxicam	Meloxicam	122	26
Alprazolam	Alprazolam	121	24
Alendronate Sodium	Alendronate Sodium	119	27
Fluoxetine Hcl	Fluoxetine Hcl	117	16
Clonazepam	Clonazepam	116	20
Allopurinol	Allopurinol	110	25
Metformin Hcl Er	Metformin Hcl	102	36
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	98	16
Ondansetron Hcl	Ondansetron Hcl	96	64
Trulicity	Dulaglutide	94	17
Paroxetine Hcl	Paroxetine Hcl	92	suppressed
Spironolactone	Spironolactone	88	14
Amiodarone Hcl	Amiodarone Hcl	87	17
Rexulti	Brexpiprazole	87	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	86	13
Olanzapine	Olanzapine	85	14
Azithromycin	Azithromycin	84	72
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	82	30
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	82	57
Lacosamide	Lacosamide	80	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	79	23
Celecoxib	Celecoxib	78	23
Solifenacin Succinate	Solifenacin Succinate	78	17
Carbidopa-Levodopa	Carbidopa/Levodopa	77	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	76	41
Ropinirole Hcl	Ropinirole Hcl	75	13
Ozempic	Semaglutide	73	17
Ezetimibe	Ezetimibe	72	12
Esomeprazole Magnesium	Esomeprazole Magnesium	68	16
Oxybutynin Chloride Er	Oxybutynin Chloride	68	15
Nystatin	Nystatin	67	34
Entresto	Sacubitril/Valsartan	65	suppressed
Torsemide	Torsemide	65	13
Valsartan	Valsartan	65	suppressed
Jardiance	Empagliflozin	64	13
Clonidine Hcl	Clonidine Hcl	63	18
Methocarbamol	Methocarbamol	62	24
Benztropine Mesylate	Benztropine Mesylate	60	14
Pregabalin	Pregabalin	60	19
Hydrocortisone	Hydrocortisone	58	13
Isosorbide Dinitrate	Isosorbide Dinitrate	58	suppressed
Baclofen	Baclofen	57	11
Doxazosin Mesylate	Doxazosin Mesylate	57	15
Prednisone	Prednisone	56	16
Ciprofloxacin Hcl	Ciprofloxacin Hcl	55	47
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	53	suppressed
Naproxen	Naproxen	53	19
Novolog Flexpen	Insulin Aspart	53	12
Lactulose	Lactulose	52	14
Methimazole	Methimazole	48	suppressed
Topiramate	Topiramate	48	suppressed
Valproic Acid	Valproic Acid (As Sodium Salt)	48	suppressed
Methylprednisolone	Methylprednisolone	47	40
Nitrofurantoin	Nitrofurantoin Macrocrystal	47	suppressed
Nystop	Nystatin	47	22
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	46	14
Synthroid	Levothyroxine Sodium	46	suppressed
Digoxin	Digoxin	45	suppressed
Glimepiride	Glimepiride	45	suppressed
Insulin Aspart Flexpen	Insulin Aspart	45	15
Sucralfate	Sucralfate	45	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	44	16
Divalproex Sodium Er	Divalproex Sodium	42	suppressed
Carbamazepine	Carbamazepine	41	suppressed
Folic Acid	Folic Acid	40	suppressed
Propranolol Hcl	Propranolol Hcl	40	suppressed
Unifine Safecontrol Pen Needle	Pen Needle,dual Safety,diabetc	40	12
Zolpidem Tartrate	Zolpidem Tartrate	40	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	39	suppressed
Cephalexin	Cephalexin	38	28
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	38	suppressed
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	38	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	38	suppressed
Terazosin Hcl	Terazosin Hcl	38	suppressed
Clonidine	Clonidine	37	suppressed
Lamotrigine	Lamotrigine	36	suppressed
Letrozole	Letrozole	36	suppressed
Lovastatin	Lovastatin	36	suppressed
Oxcarbazepine	Oxcarbazepine	36	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	36	11
Triamcinolone Acetonide	Triamcinolone Acetonide	36	20
Amantadine	Amantadine Hcl	35	suppressed
Glipizide	Glipizide	35	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	35	suppressed
Lidocaine	Lidocaine	35	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	34	11
Ibuprofen	Ibuprofen	34	12
Brimonidine Tartrate	Brimonidine Tartrate	32	suppressed
Midodrine Hcl	Midodrine Hcl	32	suppressed
Bupropion Xl	Bupropion Hcl	31	suppressed
Levofloxacin	Levofloxacin	31	24
Humulin R	Insulin Regular, Human	30	suppressed
Enalapril Maleate	Enalapril Maleate	29	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	28	suppressed
Primidone	Primidone	28	suppressed
Dorzolamide Hcl	Dorzolamide Hcl	27	suppressed
Farxiga	Dapagliflozin Propanediol	27	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	27	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	27	12
Novolin R	Insulin Regular, Human	27	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	27	suppressed
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	26	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	26	16
Fluconazole	Fluconazole	26	16
Tegretol Xr	Carbamazepine	26	suppressed
Timolol Maleate	Timolol Maleate	26	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	25	22
Aripiprazole	Aripiprazole	25	suppressed
Estradiol	Estradiol	25	suppressed
Ingrezza	Valbenazine Tosylate	25	suppressed
Meclizine Hcl	Meclizine Hcl	25	13
Namzaric	Memantine Hcl/Donepezil Hcl	25	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	25	17
Novolin R Flexpen	Insulin Regular, Human	25	suppressed
Amoxicillin	Amoxicillin	24	17
Sevelamer Carbonate	Sevelamer Carbonate	24	suppressed
Tiotropium Bromide	Tiotropium Bromide	24	suppressed
Azelastine Hcl	Azelastine Hcl	23	suppressed
Ipratropium Bromide	Ipratropium Bromide	23	14
Methotrexate	Methotrexate Sodium	23	suppressed
Mounjaro	Tirzepatide	23	suppressed
Acetazolamide	Acetazolamide	22	suppressed
Bupropion Hcl Sr	Bupropion Hcl	22	suppressed
Cilostazol	Cilostazol	22	suppressed
Cinacalcet Hcl	Cinacalcet Hcl	22	suppressed
Haloperidol Decanoate	Haloperidol Decanoate	22	suppressed
Insulin Aspart	Insulin Aspart	22	suppressed
Moxifloxacin	Moxifloxacin Hcl	22	14
Mupirocin	Mupirocin	22	14
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	22	suppressed
Rivastigmine	Rivastigmine	22	suppressed
Synjardy Xr	Empagliflozin/Metformin Hcl	22	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	21	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	21	suppressed
Breo Ellipta	Fluticasone/Vilanterol	20	suppressed
Prednisolone Acetate	Prednisolone Acetate	20	suppressed
Rivastigmine	Rivastigmine Tartrate	20	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	20	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	20	suppressed
Auryxia	Ferric Citrate	19	suppressed
Brilinta	Ticagrelor	19	suppressed
Lidocaine Hcl	Lidocaine Hcl	19	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	19	suppressed
Warfarin Sodium	Warfarin Sodium	19	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	18	suppressed
Ceftriaxone	Ceftriaxone Sodium	18	12
Diclofenac Sodium	Diclofenac Sodium	18	11
Humalog Kwikpen U-100	Insulin Lispro	18	suppressed
Levemir Flexpen	Insulin Detemir	18	suppressed
Linzess	Linaclotide	18	suppressed
Memantine Hcl Er	Memantine Hcl	18	suppressed
Myrbetriq	Mirabegron	18	suppressed
Novolog	Insulin Aspart	18	suppressed
Ondansetron Odt	Ondansetron	18	suppressed
Spiriva Handihaler	Tiotropium Bromide	18	suppressed
Acyclovir	Acyclovir	17	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	17	suppressed
Calcitriol	Calcitriol	17	suppressed
Felodipine Er	Felodipine	17	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	17	suppressed
Admelog Solostar	Insulin Lispro	16	suppressed
Haloperidol	Haloperidol	16	suppressed
Incruse Ellipta	Umeclidinium Bromide	16	suppressed
Sodium Chloride	0.9 % Sodium Chloride	16	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	16	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	15	suppressed
Glucagon Emergency Kit	Glucagon	15	11
Irbesartan	Irbesartan	15	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Metronidazole	Metronidazole	15	12
Qulipta	Atogepant	15	suppressed
Tradjenta	Linagliptin	15	suppressed
Tresiba Flextouch U-100	Insulin Degludec	15	suppressed
Bupropion Hcl	Bupropion Hcl	14	suppressed
Dabigatran Etexilate	Dabigatran Etexilate Mesylate	14	suppressed
Ertapenem	Ertapenem Sodium	14	suppressed
Methenamine Hippurate	Methenamine Hippurate	14	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	14	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	14	14
Prazosin Hcl	Prazosin Hcl	14	suppressed
Ramipril	Ramipril	14	suppressed
Scopolamine	Scopolamine	14	suppressed
Ultra-Fine Micro Pen Needle	Pen Needle, Diabetic	14	suppressed
Bethanechol Chloride	Bethanechol Chloride	13	suppressed
Cimetidine	Cimetidine	13	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	13	suppressed
Enulose	Lactulose	13	suppressed
Ketoconazole	Ketoconazole	13	suppressed
Levemir	Insulin Detemir	13	suppressed
Calcium Acetate	Calcium Acetate	12	suppressed
Cefuroxime	Cefuroxime Axetil	12	suppressed
Combigan	Brimonidine Tartrate/Timolol	12	suppressed
Dapagliflozin	Dapagliflozin Propanediol	12	suppressed
Etodolac	Etodolac	12	suppressed
Famciclovir	Famciclovir	12	suppressed
Humulin 70/30 Kwikpen	Insulin Nph Hum/Reg Insulin Hm	12	suppressed
Ibandronate Sodium	Ibandronate Sodium	12	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	12	suppressed
Lumigan	Bimatoprost	12	suppressed
Nitroglycerin	Nitroglycerin	12	suppressed
Paliperidone Er	Paliperidone	12	suppressed
Prezcobix	Darunavir/Cobicistat	12	suppressed
Ssd	Silver Sulfadiazine	12	suppressed
Symbicort	Budesonide/Formoterol Fumarate	12	suppressed
Trifluoperazine Hcl	Trifluoperazine Hcl	12	suppressed
Trihexyphenidyl Hcl	Trihexyphenidyl Hcl	12	suppressed
Carbamazepine Er	Carbamazepine	11	suppressed
Clindamycin Hcl	Clindamycin Hcl	11	suppressed
Creon	Lipase/Protease/Amylase	11	suppressed
Gemfibrozil	Gemfibrozil	11	suppressed
Nuedexta	Dextromethorphan Hbr/Quinidine	11	suppressed
Nystatin-Triamcinolone	Nystatin/Triamcinolone Acet	11	suppressed
Permethrin	Permethrin	11	suppressed
Promethazine Hcl	Promethazine Hcl	11	suppressed
Vancomycin Hcl	Vancomycin Hcl	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