Healthcare provider profile · identity verified

Michele L Callahan, NP

Nurse Practitioner · CARTHAGE, MO · NPI 1609839430

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	428	99
Amlodipine Besylate	Amlodipine Besylate	417	102
Atorvastatin Calcium	Atorvastatin Calcium	402	97
Gabapentin	Gabapentin	329	74
Omeprazole	Omeprazole	291	68
Metoprolol Succinate	Metoprolol Succinate	284	63
Losartan Potassium	Losartan Potassium	254	69
Trazodone Hcl	Trazodone Hcl	231	50
Citalopram Hbr	Citalopram Hydrobromide	196	41
Lisinopril	Lisinopril	193	57
Meloxicam	Meloxicam	160	46
Hydrochlorothiazide	Hydrochlorothiazide	159	49
Montelukast Sodium	Montelukast Sodium	156	29
Metformin Hcl	Metformin Hcl	153	41
Pantoprazole Sodium	Pantoprazole Sodium	153	35
Furosemide	Furosemide	143	38
Pravastatin Sodium	Pravastatin Sodium	128	35
Carvedilol	Carvedilol	121	31
Albuterol Sulfate Hfa	Albuterol Sulfate	116	34
Rosuvastatin Calcium	Rosuvastatin Calcium	111	21
Duloxetine Hcl	Duloxetine Hcl	104	19
Eliquis	Apixaban	103	17
Potassium Chloride	Potassium Chloride	103	17
Fluticasone Propionate	Fluticasone Propionate	94	31
Tamsulosin Hcl	Tamsulosin Hcl	91	26
Jardiance	Empagliflozin	79	16
Alendronate Sodium	Alendronate Sodium	76	17
Fluoxetine Hcl	Fluoxetine Hcl	75	18
Risperidone	Risperidone	73	suppressed
Allopurinol	Allopurinol	69	13
Baclofen	Baclofen	68	suppressed
Glimepiride	Glimepiride	64	15
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	63	14
Sertraline Hcl	Sertraline Hcl	63	18
Celecoxib	Celecoxib	62	16
Valsartan	Valsartan	62	16
Tizanidine Hcl	Tizanidine Hcl	53	suppressed
Metformin Hcl Er	Metformin Hcl	51	15
Metoprolol Tartrate	Metoprolol Tartrate	50	13
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	49	15
Clopidogrel	Clopidogrel Bisulfate	48	11
Olmesartan Medoxomil	Olmesartan Medoxomil	48	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	47	suppressed
Spironolactone	Spironolactone	46	suppressed
Bupropion Xl	Bupropion Hcl	44	11
Oxybutynin Chloride	Oxybutynin Chloride	44	12
Ropinirole Hcl	Ropinirole Hcl	43	suppressed
Prednisone	Prednisone	41	34
Estradiol	Estradiol	40	11
Mirtazapine	Mirtazapine	40	11
Buspirone Hcl	Buspirone Hcl	39	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	39	suppressed
Divalproex Sodium	Divalproex Sodium	38	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	38	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	38	suppressed
Colestipol Hcl	Colestipol Hcl	37	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	36	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	34	suppressed
Paroxetine Hcl	Paroxetine Hcl	34	11
Trulicity	Dulaglutide	34	suppressed
Aripiprazole	Aripiprazole	33	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	32	suppressed
Famotidine	Famotidine	31	suppressed
Doxepin Hcl	Doxepin Hcl	29	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	29	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	29	15
Novolin 70-30	Insulin Nph Hum/Reg Insulin Hm	28	suppressed
Donepezil Hcl	Donepezil Hcl	23	12
Fenofibrate	Fenofibrate	23	suppressed
Januvia	Sitagliptin Phosphate	23	suppressed
Simvastatin	Simvastatin	23	suppressed
Terazosin Hcl	Terazosin Hcl	23	suppressed
Xarelto	Rivaroxaban	23	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	22	15
Warfarin Sodium	Warfarin Sodium	22	suppressed
Amoxicillin	Amoxicillin	21	19
Fluconazole	Fluconazole	21	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	21	suppressed
Naproxen	Naproxen	21	suppressed
Verapamil Er	Verapamil Hcl	21	suppressed
Farxiga	Dapagliflozin Propanediol	20	suppressed
Digoxin	Digoxin	19	suppressed
Symbicort	Budesonide/Formoterol Fumarate	19	suppressed
Topiramate	Topiramate	19	suppressed
Ramipril	Ramipril	18	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	18	suppressed
Ventolin Hfa	Albuterol Sulfate	18	suppressed
Azithromycin	Azithromycin	17	15
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	17	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	17	suppressed
Atenolol	Atenolol	16	suppressed
Finasteride	Finasteride	16	suppressed
Mounjaro	Tirzepatide	16	suppressed
Rexulti	Brexpiprazole	16	suppressed
Breo Ellipta	Fluticasone/Vilanterol	15	suppressed
Diclofenac Sodium	Diclofenac Sodium	15	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	15	suppressed
Ezetimibe	Ezetimibe	14	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	14	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	13	13
Acyclovir	Acyclovir	13	suppressed
Glipizide	Glipizide	13	suppressed
Hydroxyurea	Hydroxyurea	13	suppressed
Irbesartan	Irbesartan	13	suppressed
Linzess	Linaclotide	13	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Terbinafine Hcl	Terbinafine Hcl	13	suppressed
Tiadylt Er	Diltiazem Hcl	13	suppressed
Torsemide	Torsemide	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Vraylar	Cariprazine Hcl	13	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	12	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	12	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	12	suppressed
Single Use Swab	Alcohol Antiseptic Pads	12	suppressed
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Clonidine Hcl	Clonidine Hcl	11	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	11	suppressed
Hydralazine Hcl	Hydralazine Hcl	11	suppressed
Incruse Ellipta	Umeclidinium Bromide	11	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Nebivolol Hcl	Nebivolol Hcl	11	suppressed
Olanzapine	Olanzapine	11	suppressed
Verapamil Hcl	Verapamil 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