Healthcare provider profile · identity verified

Bart Klaus, M.D.

Family Practice · COLUMBUS, TX · NPI 1659717361

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
Levothyroxine Sodium	Levothyroxine Sodium	1313	244
Atorvastatin Calcium	Atorvastatin Calcium	1251	280
Losartan Potassium	Losartan Potassium	897	188
Furosemide	Furosemide	872	171
Potassium Chloride	Potassium Chloride	822	148
Amlodipine Besylate	Amlodipine Besylate	747	148
Pantoprazole Sodium	Pantoprazole Sodium	621	149
Lisinopril	Lisinopril	585	121
Gabapentin	Gabapentin	580	127
Eliquis	Apixaban	573	78
Hydrochlorothiazide	Hydrochlorothiazide	573	131
Metoprolol Succinate	Metoprolol Succinate	468	102
Tamsulosin Hcl	Tamsulosin Hcl	414	93
Trazodone Hcl	Trazodone Hcl	404	82
Metoprolol Tartrate	Metoprolol Tartrate	381	83
Metformin Hcl	Metformin Hcl	361	89
Citalopram Hbr	Citalopram Hydrobromide	342	62
Donepezil Hcl	Donepezil Hcl	339	59
Duloxetine Hcl	Duloxetine Hcl	339	70
Montelukast Sodium	Montelukast Sodium	337	71
Omeprazole	Omeprazole	332	69
Buspirone Hcl	Buspirone Hcl	327	61
Sertraline Hcl	Sertraline Hcl	325	59
Finasteride	Finasteride	300	61
Rosuvastatin Calcium	Rosuvastatin Calcium	293	71
Glipizide Er	Glipizide	281	62
Carvedilol	Carvedilol	274	58
Allopurinol	Allopurinol	271	61
Celecoxib	Celecoxib	256	80
Mirtazapine	Mirtazapine	244	52
Famotidine	Famotidine	241	60
Paroxetine Hcl	Paroxetine Hcl	221	38
Memantine Hcl	Memantine Hcl	211	34
Valsartan	Valsartan	201	45
Prednisone	Prednisone	199	134
Clopidogrel	Clopidogrel Bisulfate	198	43
Metformin Hcl Er	Metformin Hcl	194	51
Fluticasone Propionate	Fluticasone Propionate	192	67
Simvastatin	Simvastatin	190	45
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	184	35
Pioglitazone Hcl	Pioglitazone Hcl	177	36
Spironolactone	Spironolactone	177	48
Venlafaxine Hcl Er	Venlafaxine Hcl	177	27
Chlorthalidone	Chlorthalidone	174	35
Divalproex Sodium	Divalproex Sodium	162	29
Lorazepam	Lorazepam	154	44
Albuterol Sulfate Hfa	Albuterol Sulfate	141	64
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	137	25
Xarelto	Rivaroxaban	136	17
Warfarin Sodium	Warfarin Sodium	133	11
Ezetimibe	Ezetimibe	132	35
Bupropion Hcl	Bupropion Hcl	131	32
Lactulose	Lactulose	131	25
Methenamine Hippurate	Methenamine Hippurate	129	18
Pravastatin Sodium	Pravastatin Sodium	121	28
Escitalopram Oxalate	Escitalopram Oxalate	120	24
Levetiracetam	Levetiracetam	120	14
Hydralazine Hcl	Hydralazine Hcl	118	24
Ciprofloxacin Hcl	Ciprofloxacin Hcl	116	62
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	114	48
Quetiapine Fumarate	Quetiapine Fumarate	114	21
Meloxicam	Meloxicam	113	42
Alendronate Sodium	Alendronate Sodium	110	31
Nortriptyline Hcl	Nortriptyline Hcl	108	24
Farxiga	Dapagliflozin Propanediol	106	15
Lovastatin	Lovastatin	106	28
Cephalexin	Cephalexin	105	68
Diclofenac Sodium	Diclofenac Sodium	105	45
Ropinirole Hcl	Ropinirole Hcl	103	17
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	102	24
Fluoxetine Hcl	Fluoxetine Hcl	101	18
Pregabalin	Pregabalin	101	15
Azithromycin	Azithromycin	95	84
Latanoprost	Latanoprost	95	14
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	92	20
Methylprednisolone	Methylprednisolone	92	80
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	91	15
Isosorbide Mononitrate Er	Isosorbide Mononitrate	90	suppressed
Synthroid	Levothyroxine Sodium	89	22
Nystatin	Nystatin	87	35
Atenolol	Atenolol	86	18
Nifedipine Er	Nifedipine	85	22
Fluconazole	Fluconazole	81	55
Risperidone	Risperidone	80	15
Hydroxyzine Hcl	Hydroxyzine Hcl	79	28
Torsemide	Torsemide	79	20
Dexamethasone	Dexamethasone	75	70
Enulose	Lactulose	73	17
Flecainide Acetate	Flecainide Acetate	73	suppressed
Jardiance	Empagliflozin	71	13
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	71	48
Clonazepam	Clonazepam	70	suppressed
Amiodarone Hcl	Amiodarone Hcl	67	13
Carbidopa-Levodopa	Carbidopa/Levodopa	66	15
Tramadol Hcl	Tramadol Hcl	66	20
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	65	52
Glipizide	Glipizide	63	21
Levofloxacin	Levofloxacin	63	38
Methocarbamol	Methocarbamol	63	23
Rybelsus	Semaglutide	63	11
Enalapril Maleate	Enalapril Maleate	61	suppressed
Propranolol Hcl	Propranolol Hcl	60	15
Clonidine Hcl	Clonidine Hcl	59	25
Primidone	Primidone	58	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	57	13
Januvia	Sitagliptin Phosphate	56	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	56	suppressed
Colestipol Hcl	Colestipol Hcl	55	suppressed
Diazepam	Diazepam	55	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	55	16
Doxycycline Hyclate	Doxycycline Hyclate	55	36
Oxybutynin Chloride Er	Oxybutynin Chloride	54	17
Valacyclovir	Valacyclovir Hcl	53	20
Nadolol	Nadolol	52	suppressed
Namzaric	Memantine Hcl/Donepezil Hcl	52	suppressed
Mupirocin	Mupirocin	51	32
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	50	33
Diltiazem Hcl	Diltiazem Hcl	49	12
Fenofibrate	Fenofibrate Nanocrystallized	48	11
Oxybutynin Chloride	Oxybutynin Chloride	48	11
Estradiol	Estradiol	47	13
Ondansetron Odt	Ondansetron	47	39
Ozempic	Semaglutide	47	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	47	31
Esomeprazole Magnesium	Esomeprazole Magnesium	46	suppressed
Lamotrigine	Lamotrigine	46	suppressed
Olanzapine	Olanzapine	46	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	45	23
Doxazosin Mesylate	Doxazosin Mesylate	43	13
Ipratropium Bromide	Ipratropium Bromide	43	16
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	41	13
Temazepam	Temazepam	41	suppressed
Irbesartan	Irbesartan	39	suppressed
Bupropion Xl	Bupropion Hcl	38	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	38	suppressed
Midodrine Hcl	Midodrine Hcl	38	suppressed
Aripiprazole	Aripiprazole	37	suppressed
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	37	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	37	suppressed
Baclofen	Baclofen	35	13
Ondansetron Hcl	Ondansetron Hcl	35	23
Ventolin Hfa	Albuterol Sulfate	35	17
Carbamazepine	Carbamazepine	34	suppressed
Myrbetriq	Mirabegron	34	suppressed
Ramipril	Ramipril	34	suppressed
Alprazolam	Alprazolam	33	suppressed
Topiramate	Topiramate	33	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	33	suppressed
Valproic Acid	Valproic Acid (As Sodium Salt)	33	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	32	suppressed
Breo Ellipta	Fluticasone/Vilanterol	32	suppressed
Colchicine	Colchicine	32	16
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	32	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	32	suppressed
Azelastine Hcl	Azelastine Hcl	31	14
Cefdinir	Cefdinir	31	24
Digoxin	Digoxin	31	13
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	30	suppressed
Tizanidine Hcl	Tizanidine Hcl	30	12
Arexvy	Rsvpref3 Antigen/As01e/Pf	29	29
Bupropion Hcl Sr	Bupropion Hcl	29	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	29	21
Indapamide	Indapamide	29	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	29	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	28	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Liothyronine Sodium	Liothyronine Sodium	27	suppressed
Nebivolol Hcl	Nebivolol Hcl	27	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	27	27
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	26	suppressed
Glimepiride	Glimepiride	26	suppressed
Meclizine Hcl	Meclizine Hcl	26	13
Terazosin Hcl	Terazosin Hcl	26	suppressed
Doxepin Hcl	Doxepin Hcl	25	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	25	suppressed
Divalproex Sodium Er	Divalproex Sodium	24	suppressed
Telmisartan	Telmisartan	24	suppressed
Ibuprofen	Ibuprofen	23	suppressed
Morphine Sulfate Er	Morphine Sulfate	23	suppressed
Incruse Ellipta	Umeclidinium Bromide	22	suppressed
Quetiapine Fumarate Er	Quetiapine Fumarate	22	suppressed
Sucralfate	Sucralfate	22	12
Trulicity	Dulaglutide	22	suppressed
Cholestyramine	Cholestyramine (With Sugar)	21	suppressed
Clindamycin Hcl	Clindamycin Hcl	21	16
Gemfibrozil	Gemfibrozil	21	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	21	suppressed
Ketoconazole	Ketoconazole	21	11
Novolog Flexpen	Insulin Aspart	21	suppressed
Amoxicillin	Amoxicillin	20	14
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	20	15
Nyamyc	Nystatin	20	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	20	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	20	suppressed
Klor-Con M20	Potassium Chloride	19	suppressed
Methotrexate	Methotrexate Sodium	19	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	18	suppressed
Albuterol Sulfate	Albuterol Sulfate	18	suppressed
Benazepril Hcl	Benazepril Hcl	18	suppressed
Bumetanide	Bumetanide	18	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	18	suppressed
Fenofibrate	Fenofibrate	18	suppressed
Mounjaro	Tirzepatide	18	suppressed
Novolin R Flexpen	Insulin Regular, Human	18	suppressed
Oxcarbazepine	Oxcarbazepine	18	suppressed
Phenobarbital	Phenobarbital	18	suppressed
Sodium Chloride	0.9 % Sodium Chloride	18	suppressed
Solifenacin Succinate	Solifenacin Succinate	18	suppressed
Clonidine	Clonidine	17	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	16	suppressed
Metronidazole	Metronidazole	16	14
Prevalite	Cholestyramine	16	suppressed
Sevelamer Carbonate	Sevelamer Carbonate	16	suppressed
Terbinafine Hcl	Terbinafine Hcl	16	suppressed
Testosterone Cypionate	Testosterone Cypionate	16	suppressed
Ceftriaxone	Ceftriaxone Sodium	15	suppressed
Levobunolol Hcl	Levobunolol Hcl	15	suppressed
Memantine Hcl Er	Memantine Hcl	15	suppressed
Novolin R	Insulin Regular, Human	15	suppressed
Tradjenta	Linagliptin	15	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	14	suppressed
Entresto	Sacubitril/Valsartan	14	suppressed
Lidocaine Hcl	Lidocaine Hcl	14	suppressed
Premarin	Estrogens, Conjugated	14	suppressed
Tresiba Flextouch U-100	Insulin Degludec	14	suppressed
Acyclovir	Acyclovir	13	suppressed
Budesonide	Budesonide	13	suppressed
Cilostazol	Cilostazol	13	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Sotalol	Sotalol Hcl	13	suppressed
Timolol Maleate	Timolol Maleate	13	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	12	suppressed
Calcitriol	Calcitriol	12	suppressed
Cefuroxime	Cefuroxime Axetil	12	suppressed
Ertapenem	Ertapenem Sodium	12	suppressed
Lithium Carbonate	Lithium Carbonate	12	suppressed
Raloxifene Hcl	Raloxifene Hcl	12	suppressed
Ranolazine Er	Ranolazine	12	suppressed
Rivastigmine	Rivastigmine Tartrate	12	suppressed
Tiotropium Bromide	Tiotropium Bromide	12	suppressed
Calcitonin-Salmon	Calcitonin,salmon,synthetic	11	suppressed
Carbamazepine Er	Carbamazepine	11	suppressed
Clotrimazole	Clotrimazole	11	suppressed
Emtricitabine-Tenofovir Disop	Emtricitabine/Tenofovir (Tdf)	11	suppressed
Galantamine Hbr	Galantamine Hbr	11	suppressed
Ketorolac Tromethamine	Ketorolac Tromethamine	11	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	11	suppressed
Metolazone	Metolazone	11	suppressed
Multaq	Dronedarone Hcl	11	suppressed
Procto-Med Hc	Hydrocortisone	11	suppressed
Ramelteon	Ramelteon	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