Healthcare provider profile · identity verified

Brian T Callihan, M.D.

Family Practice · BATON ROUGE, LA · NPI 1528452026

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	750	244
Levothyroxine Sodium	Levothyroxine Sodium	630	173
Amlodipine Besylate	Amlodipine Besylate	615	181
Gabapentin	Gabapentin	421	123
Pantoprazole Sodium	Pantoprazole Sodium	415	135
Metoprolol Succinate	Metoprolol Succinate	320	88
Alprazolam	Alprazolam	315	71
Losartan Potassium	Losartan Potassium	309	95
Lisinopril	Lisinopril	301	98
Omeprazole	Omeprazole	298	89
Potassium Chloride	Potassium Chloride	298	87
Ozempic	Semaglutide	292	64
Hydrochlorothiazide	Hydrochlorothiazide	261	75
Montelukast Sodium	Montelukast Sodium	249	84
Furosemide	Furosemide	243	85
Famotidine	Famotidine	234	61
Rosuvastatin Calcium	Rosuvastatin Calcium	228	90
Metformin Hcl	Metformin Hcl	225	87
Tamsulosin Hcl	Tamsulosin Hcl	215	62
Mounjaro	Tirzepatide	210	37
Trazodone Hcl	Trazodone Hcl	200	70
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	188	39
Albuterol Sulfate Hfa	Albuterol Sulfate	184	68
Fluticasone Propionate	Fluticasone Propionate	181	74
Meloxicam	Meloxicam	177	54
Duloxetine Hcl	Duloxetine Hcl	173	49
Jardiance	Empagliflozin	169	44
Allopurinol	Allopurinol	161	46
Simvastatin	Simvastatin	156	51
Ezetimibe	Ezetimibe	155	64
Escitalopram Oxalate	Escitalopram Oxalate	151	48
Clopidogrel	Clopidogrel Bisulfate	147	46
Alendronate Sodium	Alendronate Sodium	142	34
Sertraline Hcl	Sertraline Hcl	138	37
Eliquis	Apixaban	136	31
Pravastatin Sodium	Pravastatin Sodium	120	40
Diclofenac Sodium	Diclofenac Sodium	115	46
Tramadol Hcl	Tramadol Hcl	111	35
Atenolol	Atenolol	107	30
Carvedilol	Carvedilol	106	34
Linzess	Linaclotide	105	35
Buspirone Hcl	Buspirone Hcl	102	33
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	95	26
Ondansetron Odt	Ondansetron	92	34
Spironolactone	Spironolactone	92	29
Fluoxetine Hcl	Fluoxetine Hcl	86	20
Metoprolol Tartrate	Metoprolol Tartrate	85	28
Bupropion Xl	Bupropion Hcl	81	22
Esomeprazole Magnesium	Esomeprazole Magnesium	78	18
Clonazepam	Clonazepam	76	20
Olmesartan Medoxomil	Olmesartan Medoxomil	73	26
Amitriptyline Hcl	Amitriptyline Hcl	72	16
Doxycycline Hyclate	Doxycycline Hyclate	71	64
Metformin Hcl Er	Metformin Hcl	71	27
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	68	14
Benazepril Hcl	Benazepril Hcl	64	24
Valsartan	Valsartan	61	20
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	59	18
Tizanidine Hcl	Tizanidine Hcl	59	26
Xarelto	Rivaroxaban	58	11
Celecoxib	Celecoxib	54	17
Prednisone	Prednisone	54	45
Citalopram Hbr	Citalopram Hydrobromide	53	18
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	53	23
Hydralazine Hcl	Hydralazine Hcl	53	16
Hydroxyzine Hcl	Hydroxyzine Hcl	53	22
Enalapril Maleate	Enalapril Maleate	52	15
Ropinirole Hcl	Ropinirole Hcl	52	20
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	51	suppressed
Lorazepam	Lorazepam	51	12
Venlafaxine Hcl Er	Venlafaxine Hcl	51	21
Oxycodone Hcl	Oxycodone Hcl	50	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	49	14
Januvia	Sitagliptin Phosphate	46	12
Diazepam	Diazepam	45	suppressed
Finasteride	Finasteride	45	16
Oxybutynin Chloride Er	Oxybutynin Chloride	45	suppressed
Temazepam	Temazepam	45	suppressed
Breo Ellipta	Fluticasone/Vilanterol	44	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	43	36
Pregabalin	Pregabalin	43	18
Clonidine	Clonidine	42	suppressed
Clonidine Hcl	Clonidine Hcl	41	suppressed
Divalproex Sodium	Divalproex Sodium	41	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	41	14
Paroxetine Hcl	Paroxetine Hcl	41	12
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	41	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	39	suppressed
Chlorthalidone	Chlorthalidone	38	suppressed
Estradiol	Estradiol	38	suppressed
Memantine Hcl	Memantine Hcl	38	13
Glipizide Er	Glipizide	37	13
Meclizine Hcl	Meclizine Hcl	37	20
Nifedipine Er	Nifedipine	36	12
Doxazosin Mesylate	Doxazosin Mesylate	35	suppressed
Ibuprofen	Ibuprofen	35	19
Mirtazapine	Mirtazapine	34	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	34	14
Donepezil Hcl	Donepezil Hcl	33	suppressed
Fenofibrate	Fenofibrate	33	12
Lidocaine-Prilocaine	Lidocaine/Prilocaine	32	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	32	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	31	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	31	suppressed
Lovastatin	Lovastatin	31	12
Propranolol Hcl	Propranolol Hcl	31	suppressed
Acyclovir	Acyclovir	30	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	30	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	30	11
Azelastine Hcl	Azelastine Hcl	29	13
Fluconazole	Fluconazole	29	21
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	29	14
Vascepa	Icosapent Ethyl	29	suppressed
Baclofen	Baclofen	28	11
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	28	suppressed
Methocarbamol	Methocarbamol	28	13
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	27	26
Carisoprodol	Carisoprodol	27	suppressed
Gemfibrozil	Gemfibrozil	27	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	27	13
Cyproheptadine Hcl	Cyproheptadine Hcl	26	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	26	23
Farxiga	Dapagliflozin Propanediol	25	suppressed
Levetiracetam	Levetiracetam	25	suppressed
Synthroid	Levothyroxine Sodium	25	11
Dicyclomine Hcl	Dicyclomine Hcl	24	suppressed
Oxcarbazepine	Oxcarbazepine	24	suppressed
Ramipril	Ramipril	24	suppressed
Risperidone	Risperidone	24	suppressed
Tramadol Hcl Er	Tramadol Hcl	24	suppressed
Trulicity	Dulaglutide	24	suppressed
Verapamil Er	Verapamil Hcl	24	suppressed
Colchicine	Colchicine	23	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	23	suppressed
Promethazine Hcl	Promethazine Hcl	23	suppressed
Valacyclovir	Valacyclovir Hcl	23	14
Mupirocin	Mupirocin	22	21
Sucralfate	Sucralfate	22	suppressed
Myrbetriq	Mirabegron	21	suppressed
Telmisartan	Telmisartan	21	suppressed
Torsemide	Torsemide	19	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	18	suppressed
Glipizide	Glipizide	18	suppressed
Hydrocortisone	Hydrocortisone	18	12
Ondansetron Hcl	Ondansetron Hcl	18	11
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	17	13
Prasugrel Hcl	Prasugrel Hcl	17	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	17	suppressed
Topiramate	Topiramate	17	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	16	suppressed
Lactulose	Lactulose	16	suppressed
Testosterone	Testosterone	16	suppressed
Ventolin Hfa	Albuterol Sulfate	16	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	15	11
Nystatin	Nystatin	15	suppressed
Testosterone Cypionate	Testosterone Cypionate	15	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	14	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	14	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	14	suppressed
Valproic Acid	Valproic Acid	14	suppressed
Warfarin Sodium	Warfarin Sodium	14	suppressed
Aviane	Levonorgestrel/Ethin.Estradiol	13	suppressed
Demeclocycline Hcl	Demeclocycline Hcl	13	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	13	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	13	suppressed
Fluphenazine Hcl	Fluphenazine Hcl	13	suppressed
Nitroglycerin	Nitroglycerin	13	13
Tri-Linyah	Norgestimate-Ethinyl Estradiol	13	suppressed
Xifaxan	Rifaximin	13	suppressed
Armour Thyroid	Thyroid,pork	12	suppressed
Benztropine Mesylate	Benztropine Mesylate	12	suppressed
Brilinta	Ticagrelor	12	suppressed
Calcitriol	Calcitriol	12	suppressed
Droplet Pen Needle	Pen Needle, Diabetic	12	suppressed
Entresto	Sacubitril/Valsartan	12	suppressed
Folic Acid	Folic Acid	12	suppressed
Ipratropium Bromide	Ipratropium Bromide	12	suppressed
Irbesartan	Irbesartan	12	suppressed
Levalbuterol Tartrate Hfa	Levalbuterol Tartrate	12	suppressed
Mesalamine Er	Mesalamine	12	suppressed
Metolazone	Metolazone	12	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	12	suppressed
Repatha Sureclick	Evolocumab	12	suppressed
Terbinafine Hcl	Terbinafine Hcl	12	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	12	suppressed
Vyvanse	Lisdexamfetamine Dimesylate	12	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Lamotrigine	Lamotrigine	11	suppressed
Methotrexate	Methotrexate Sodium	11	suppressed
Methylprednisolone	Methylprednisolone	11	11
Pioglitazone Hcl	Pioglitazone Hcl	11	suppressed
Symbicort	Budesonide/Formoterol Fumarate	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