Healthcare provider profile · identity verified

Mark A Basham, MD

Allopathic & Osteopathic Physicians|Family Medicine · EUREKA, KS · NPI 1255326443

Profile state: payments and partd 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

CMS Open Payments records show Mark A Basham, MD received $37.39 in general payments during 2025 across 2 reported records.

SANOFI PASTEUR INC. accounted for 63.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$37.39

2 reported records · 2 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported company	Canonical company	Amount	Share	Records	Year
SANOFI PASTEUR INC.	Unresolved — no canonical attribution shown	$23.59	63.1%	1	2025
Amgen Inc.	Unresolved — no canonical attribution shown	$13.80	36.9%	1	2025

What were the payments for?

Payment categories

Category	Amount	Records
Food and Beverage	$37.39	2

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported product	Type	Reported company	Related amount*	Records	Year
BEYFORTUS Normalized: beyfortus	Biological	SANOFI PASTEUR INC.	$23.59	1	2025
Source payment records 2025-11-25 · SANOFI PASTEUR INC. · $23.59 · Open Payments source
FLUZONE QUADRIVALENT NORTHERN HEMISPHERE Normalized: fluzone quadrivalent northern hemisphere	Biological	SANOFI PASTEUR INC.	$23.59	1	2025
Source payment records 2025-11-25 · SANOFI PASTEUR INC. · $23.59 · Open Payments source
VAXELIS Normalized: vaxelis	Biological	SANOFI PASTEUR INC.	$23.59	1	2025
Source payment records 2025-11-25 · SANOFI PASTEUR INC. · $23.59 · Open Payments source
EVENITY Normalized: evenity	Biological	Amgen Inc.	$13.80	1	2025
Source payment records 2025-11-13 · Amgen Inc. · $13.80 · Open Payments source

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Potassium Chloride	Potassium Chloride	653	86
Gabapentin	Gabapentin	582	85
Furosemide	Furosemide	581	75
Amlodipine Besylate	Amlodipine Besylate	480	88
Levothyroxine Sodium	Levothyroxine Sodium	474	60
Omeprazole	Omeprazole	463	79
Atorvastatin Calcium	Atorvastatin Calcium	461	84
Pantoprazole Sodium	Pantoprazole Sodium	419	62
Buspirone Hcl	Buspirone Hcl	406	72
Montelukast Sodium	Montelukast Sodium	360	64
Eliquis	Apixaban	275	29
Trazodone Hcl	Trazodone Hcl	273	40
Lisinopril	Lisinopril	264	52
Simvastatin	Simvastatin	261	45
Escitalopram Oxalate	Escitalopram Oxalate	252	48
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	244	37
Losartan Potassium	Losartan Potassium	210	45
Metoprolol Succinate	Metoprolol Succinate	203	37
Prednisone	Prednisone	203	73
Metformin Hcl	Metformin Hcl	199	44
Allopurinol	Allopurinol	187	20
Tramadol Hcl	Tramadol Hcl	181	27
Azithromycin	Azithromycin	170	114
Albuterol Sulfate Hfa	Albuterol Sulfate	166	40
Tamsulosin Hcl	Tamsulosin Hcl	164	34
Ozempic	Semaglutide	151	22
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	145	22
Topiramate	Topiramate	144	26
Atenolol	Atenolol	143	26
Duloxetine Hcl	Duloxetine Hcl	141	22
Hydrochlorothiazide	Hydrochlorothiazide	139	25
Metoprolol Tartrate	Metoprolol Tartrate	139	26
Diclofenac Sodium	Diclofenac Sodium	135	41
Clopidogrel	Clopidogrel Bisulfate	133	21
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	129	32
Tizanidine Hcl	Tizanidine Hcl	129	20
Memantine Hcl	Memantine Hcl	124	16
Famotidine	Famotidine	122	25
Hydroxyzine Hcl	Hydroxyzine Hcl	122	20
Ezetimibe	Ezetimibe	117	23
Pioglitazone Hcl	Pioglitazone Hcl	116	25
Meloxicam	Meloxicam	106	24
Estradiol	Estradiol	102	16
Dexamethasone	Dexamethasone	100	77
Pregabalin	Pregabalin	98	11
Oxybutynin Chloride	Oxybutynin Chloride	97	17
Alprazolam	Alprazolam	91	11
Bumetanide	Bumetanide	88	12
Sertraline Hcl	Sertraline Hcl	83	17
Gemfibrozil	Gemfibrozil	82	15
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	81	14
Quetiapine Fumarate	Quetiapine Fumarate	80	13
Xarelto	Rivaroxaban	79	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	75	suppressed
Cefuroxime	Cefuroxime Axetil	74	46
Donepezil Hcl	Donepezil Hcl	71	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	70	suppressed
Clonazepam	Clonazepam	70	suppressed
Sucralfate	Sucralfate	68	14
Baclofen	Baclofen	63	suppressed
Fluticasone Propionate	Fluticasone Propionate	63	16
Rosuvastatin Calcium	Rosuvastatin Calcium	63	12
Aripiprazole	Aripiprazole	62	suppressed
Glipizide	Glipizide	62	14
Citalopram Hbr	Citalopram Hydrobromide	60	suppressed
Risperidone	Risperidone	60	suppressed
Ondansetron Odt	Ondansetron	59	14
Divalproex Sodium	Divalproex Sodium	58	suppressed
Lorazepam	Lorazepam	58	11
Venlafaxine Hcl Er	Venlafaxine Hcl	57	suppressed
Fluconazole	Fluconazole	56	34
Propranolol Hcl	Propranolol Hcl	55	suppressed
Ibuprofen	Ibuprofen	53	13
Paroxetine Hcl	Paroxetine Hcl	53	suppressed
Prazosin Hcl	Prazosin Hcl	52	suppressed
Synthroid	Levothyroxine Sodium	52	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	50	41
Spironolactone	Spironolactone	50	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	49	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	49	suppressed
Metformin Hcl Er	Metformin Hcl	48	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	47	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	47	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	47	suppressed
Bupropion Xl	Bupropion Hcl	46	suppressed
Myrbetriq	Mirabegron	46	suppressed
Warfarin Sodium	Warfarin Sodium	45	suppressed
Terbinafine Hcl	Terbinafine Hcl	44	13
Ropinirole Hcl	Ropinirole Hcl	43	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	42	suppressed
Alendronate Sodium	Alendronate Sodium	41	suppressed
Olanzapine	Olanzapine	41	suppressed
Cephalexin	Cephalexin	40	suppressed
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	40	suppressed
Meclizine Hcl	Meclizine Hcl	40	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	40	35
Clonidine Hcl	Clonidine Hcl	39	suppressed
Primidone	Primidone	39	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	35	suppressed
Lamotrigine	Lamotrigine	34	suppressed
Tresiba Flextouch U-100	Insulin Degludec	34	suppressed
Celecoxib	Celecoxib	33	suppressed
Lovastatin	Lovastatin	33	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	32	22
Digoxin	Digoxin	32	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	32	20
Acetaminophen-Codeine	Acetaminophen With Codeine	31	suppressed
Carvedilol	Carvedilol	31	suppressed
Namzaric	Memantine Hcl/Donepezil Hcl	31	suppressed
Levetiracetam	Levetiracetam	30	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	30	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	29	suppressed
Januvia	Sitagliptin Phosphate	29	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	29	suppressed
Morphine Sulfate	Morphine Sulfate	28	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	27	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	27	suppressed
Methocarbamol	Methocarbamol	27	suppressed
Butorphanol Tartrate	Butorphanol Tartrate	26	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	25	suppressed
Fentanyl	Fentanyl	25	suppressed
Nystatin	Nystatin	25	16
Arexvy	Rsvpref3 Antigen/As01e/Pf	24	24
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	24	suppressed
Glipizide Er	Glipizide	24	suppressed
Budesonide	Budesonide	23	11
Shingrix	Varicella-Zoster Ge/As01b/Pf	23	20
Sotalol	Sotalol Hcl	23	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	22	suppressed
Methylprednisolone	Methylprednisolone	22	17
Levofloxacin	Levofloxacin	21	15
Metolazone	Metolazone	21	suppressed
Naltrexone Hcl	Naltrexone Hcl	21	suppressed
Ondansetron Hcl	Ondansetron Hcl	21	suppressed
Promethazine Hcl	Promethazine Hcl	21	suppressed
Albuterol Sulfate	Albuterol Sulfate	20	suppressed
Farxiga	Dapagliflozin Propanediol	20	suppressed
Finasteride	Finasteride	20	suppressed
Oxycodone Hcl	Oxycodone Hcl	20	suppressed
Testosterone Cypionate	Testosterone Cypionate	20	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	19	suppressed
Carbamazepine	Carbamazepine	19	suppressed
Cartia Xt	Diltiazem Hcl	19	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	19	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	19	suppressed
Latanoprost	Latanoprost	18	suppressed
Verapamil Hcl	Verapamil Hcl	18	suppressed
Amiodarone Hcl	Amiodarone Hcl	17	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	17	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	17	suppressed
Pravastatin Sodium	Pravastatin Sodium	17	suppressed
Diazepam	Diazepam	16	suppressed
Fosinopril Sodium	Fosinopril Sodium	16	suppressed
Megestrol Acetate	Megestrol Acetate	16	suppressed
Benazepril Hcl	Benazepril Hcl	15	suppressed
Ceftriaxone	Ceftriaxone Sodium	15	12
Clindamycin Hcl	Clindamycin Hcl	15	12
Lantus	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Semglee (Yfgn) Pen	Insulin Glargine-Yfgn	15	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	15	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	14	suppressed
Bupropion Hcl	Bupropion Hcl	14	suppressed
Calcitriol	Calcitriol	14	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	14	suppressed
Enalapril Maleate	Enalapril Maleate	14	suppressed
Glycopyrrolate	Glycopyrrolate	14	suppressed
Lidocaine	Lidocaine	14	suppressed
Mupirocin	Mupirocin	14	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	13	13
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Bupropion Hcl Sr	Bupropion Hcl	13	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	13	suppressed
Fenofibrate	Fenofibrate	13	suppressed
Linzess	Linaclotide	13	suppressed
Methotrexate	Methotrexate Sodium	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Progesterone	Progesterone, Micronized	13	suppressed
Rexulti	Brexpiprazole	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Timolol Maleate	Timolol Maleate	13	suppressed
Carisoprodol	Carisoprodol	12	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	12	suppressed
Divalproex Sodium Er	Divalproex Sodium	12	suppressed
Ertapenem	Ertapenem Sodium	12	suppressed
Eszopiclone	Eszopiclone	12	suppressed
Folic Acid	Folic Acid	12	suppressed
Ramipril	Ramipril	12	suppressed
Vilazodone Hcl	Vilazodone Hcl	12	suppressed
Ipratropium Bromide	Ipratropium Bromide	11	suppressed
Klayesta	Nystatin	11	suppressed
Lidocaine Hcl	Lidocaine Hcl/Pf	11	suppressed
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	11	suppressed
Novofine Autocover	Pen Needle, Diabetic, Safety	11	suppressed
Onglyza	Saxagliptin Hcl	11	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	11	suppressed
Terazosin Hcl	Terazosin Hcl	11	suppressed
Torsemide	Torsemide	11	suppressed
Tresiba Flextouch U-200	Insulin Degludec	11	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	11	suppressed
Xylocaine-Mpf	Lidocaine Hcl/Pf	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	$37.39 · 2 records	SANOFI PASTEUR INC.	BEYFORTUS, EVENITY, FLUZONE QUADRIVALENT NORTHERN HEMISPHERE, VAXELIS	—	—
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