Healthcare provider profile · identity verified

Caleb Warren, M.D.

Family Practice · KNOXVILLE, TN · NPI 1801861786

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
Gabapentin	Gabapentin	507	100
Atorvastatin Calcium	Atorvastatin Calcium	478	142
Omeprazole	Omeprazole	411	116
Levothyroxine Sodium	Levothyroxine Sodium	342	95
Meloxicam	Meloxicam	280	95
Amlodipine Besylate	Amlodipine Besylate	252	76
Metoprolol Succinate	Metoprolol Succinate	226	69
Alprazolam	Alprazolam	222	44
Pantoprazole Sodium	Pantoprazole Sodium	216	64
Potassium Chloride	Potassium Chloride	207	62
Zolpidem Tartrate	Zolpidem Tartrate	202	38
Furosemide	Furosemide	185	62
Trazodone Hcl	Trazodone Hcl	182	50
Glimepiride	Glimepiride	179	60
Lisinopril	Lisinopril	179	59
Prednisone	Prednisone	173	119
Pregabalin	Pregabalin	172	31
Tizanidine Hcl	Tizanidine Hcl	156	33
Tramadol Hcl	Tramadol Hcl	151	26
Simvastatin	Simvastatin	148	40
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	144	28
Tamsulosin Hcl	Tamsulosin Hcl	143	48
Hydrochlorothiazide	Hydrochlorothiazide	135	42
Losartan Potassium	Losartan Potassium	134	40
Duloxetine Hcl	Duloxetine Hcl	127	34
Metformin Hcl	Metformin Hcl	127	37
Escitalopram Oxalate	Escitalopram Oxalate	122	36
Rosuvastatin Calcium	Rosuvastatin Calcium	110	34
Metoprolol Tartrate	Metoprolol Tartrate	102	23
Fluticasone Propionate	Fluticasone Propionate	101	39
Albuterol Sulfate Hfa	Albuterol Sulfate	98	39
Eliquis	Apixaban	94	20
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	88	29
Doxazosin Mesylate	Doxazosin Mesylate	87	21
Triamcinolone Acetonide	Triamcinolone Acetonide	87	46
Clopidogrel	Clopidogrel Bisulfate	86	31
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	83	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	82	22
Metformin Hcl Er	Metformin Hcl	81	28
Montelukast Sodium	Montelukast Sodium	80	25
Lorazepam	Lorazepam	76	30
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	73	20
Donepezil Hcl	Donepezil Hcl	71	21
Citalopram Hbr	Citalopram Hydrobromide	70	20
Januvia	Sitagliptin Phosphate	70	15
Pioglitazone Hcl	Pioglitazone Hcl	70	22
Allopurinol	Allopurinol	68	21
Finasteride	Finasteride	67	24
Meclizine Hcl	Meclizine Hcl	67	27
Bupropion Xl	Bupropion Hcl	66	18
Famotidine	Famotidine	64	22
Benazepril Hcl	Benazepril Hcl	63	17
Amitriptyline Hcl	Amitriptyline Hcl	61	14
Spironolactone	Spironolactone	61	19
Quetiapine Fumarate	Quetiapine Fumarate	60	16
Carvedilol	Carvedilol	59	18
Hydralazine Hcl	Hydralazine Hcl	57	16
Celecoxib	Celecoxib	56	22
Diclofenac Sodium	Diclofenac Sodium	56	21
Pravastatin Sodium	Pravastatin Sodium	56	16
Fluconazole	Fluconazole	54	23
Ondansetron Hcl	Ondansetron Hcl	54	25
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	54	12
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	53	17
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	51	13
Oxybutynin Chloride Er	Oxybutynin Chloride	50	17
Esomeprazole Magnesium	Esomeprazole Magnesium	49	14
Fluoxetine Hcl	Fluoxetine Hcl	48	16
Jardiance	Empagliflozin	48	13
Sertraline Hcl	Sertraline Hcl	47	20
Lantus	Insulin Glargine,hum.Rec.Anlog	46	suppressed
Clonazepam	Clonazepam	44	suppressed
Clonidine Hcl	Clonidine Hcl	43	12
Telmisartan	Telmisartan	43	suppressed
Oxycodone Hcl	Oxycodone Hcl	41	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	38	suppressed
Azithromycin	Azithromycin	37	32
Mupirocin	Mupirocin	37	28
Estradiol	Estradiol	36	suppressed
Levofloxacin	Levofloxacin	36	30
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	35	11
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	35	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	33	suppressed
Farxiga	Dapagliflozin Propanediol	32	suppressed
Ozempic	Semaglutide	32	12
Atenolol	Atenolol	31	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	30	19
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	29	22
Linzess	Linaclotide	28	suppressed
Nifedipine Er	Nifedipine	28	suppressed
Promethazine Hcl	Promethazine Hcl	28	12
Hydroxyzine Hcl	Hydroxyzine Hcl	27	11
Ibuprofen	Ibuprofen	27	suppressed
Valacyclovir	Valacyclovir Hcl	26	11
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	25	suppressed
Myrbetriq	Mirabegron	25	suppressed
Alendronate Sodium	Alendronate Sodium	23	suppressed
Diazepam	Diazepam	23	suppressed
Ondansetron Odt	Ondansetron	23	11
Flunisolide	Flunisolide	22	suppressed
Baclofen	Baclofen	21	suppressed
Buspirone Hcl	Buspirone Hcl	21	suppressed
Chlorthalidone	Chlorthalidone	21	suppressed
Risperidone	Risperidone	21	suppressed
Glipizide Er	Glipizide	20	suppressed
Morphine Sulfate	Morphine Sulfate	20	20
Nystatin	Nystatin	20	17
Fenofibrate	Fenofibrate	19	suppressed
Haloperidol Lactate	Haloperidol Lactate	19	19
Isosorbide Mononitrate Er	Isosorbide Mononitrate	19	suppressed
Metolazone	Metolazone	19	suppressed
Testosterone Cypionate	Testosterone Cypionate	19	suppressed
Trulicity	Dulaglutide	19	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	18	14
Glipizide-Metformin	Glipizide/Metformin Hcl	18	suppressed
Spiriva Handihaler	Tiotropium Bromide	18	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	17	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	16	13
Colchicine	Colchicine	16	suppressed
Irbesartan	Irbesartan	16	suppressed
Methadone Hcl	Methadone Hcl	16	suppressed
Morphine Sulfate Er	Morphine Sulfate	16	suppressed
Bumetanide	Bumetanide	15	suppressed
Primidone	Primidone	15	suppressed
Sucralfate	Sucralfate	15	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	15	15
Warfarin Sodium	Warfarin Sodium	15	suppressed
Amoxicillin	Amoxicillin	14	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	14	suppressed
Memantine Hcl	Memantine Hcl	14	suppressed
Mounjaro	Tirzepatide	14	suppressed
Propranolol Hcl	Propranolol Hcl	14	suppressed
Synthroid	Levothyroxine Sodium	14	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	13	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	13	suppressed
Enalapril Maleate	Enalapril Maleate	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Ipratropium Bromide	Ipratropium Bromide	13	suppressed
Nitroglycerin	Nitroglycerin	13	suppressed
Risedronate Sodium	Risedronate Sodium	13	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	13	suppressed
Alprazolam Er	Alprazolam	12	suppressed
Brilinta	Ticagrelor	12	suppressed
Bupropion Hcl Sr	Bupropion Hcl	12	suppressed
Carisoprodol	Carisoprodol	12	suppressed
Labetalol Hcl	Labetalol Hcl	12	suppressed
Lansoprazole	Lansoprazole	12	suppressed
Lidocaine-Prilocaine	Lidocaine/Prilocaine	12	suppressed
Lubiprostone	Lubiprostone	12	suppressed
Ropinirole Hcl	Ropinirole Hcl	12	suppressed
Valsartan	Valsartan	12	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	11	suppressed
Cephalexin	Cephalexin	11	suppressed
Ezetimibe	Ezetimibe	11	suppressed
Lovastatin	Lovastatin	11	suppressed
Nebivolol Hcl	Nebivolol Hcl	11	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	11	suppressed
Paroxetine Hcl	Paroxetine Hcl	11	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	11	11
Rizatriptan	Rizatriptan Benzoate	11	suppressed
Sotalol	Sotalol Hcl	11	suppressed
Xarelto	Rivaroxaban	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