Healthcare provider profile · identity verified

Thomas I Kanomata, MD

Internal Medicine · GRASS VALLEY, CA · NPI 1659336543

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	550	145
Atorvastatin Calcium	Atorvastatin Calcium	546	145
Amlodipine Besylate	Amlodipine Besylate	521	151
Lisinopril	Lisinopril	430	119
Trazodone Hcl	Trazodone Hcl	325	86
Losartan Potassium	Losartan Potassium	316	90
Diclofenac Sodium	Diclofenac Sodium	281	103
Pantoprazole Sodium	Pantoprazole Sodium	227	72
Eliquis	Apixaban	206	47
Hydrochlorothiazide	Hydrochlorothiazide	196	59
Tramadol Hcl	Tramadol Hcl	195	62
Omeprazole	Omeprazole	189	55
Tamsulosin Hcl	Tamsulosin Hcl	188	53
Citalopram Hbr	Citalopram Hydrobromide	173	42
Gabapentin	Gabapentin	171	52
Potassium Chloride	Potassium Chloride	167	44
Metformin Hcl	Metformin Hcl	157	45
Albuterol Sulfate Hfa	Albuterol Sulfate	150	66
Baclofen	Baclofen	144	60
Prednisone	Prednisone	123	66
Lorazepam	Lorazepam	121	34
Spironolactone	Spironolactone	118	36
Simvastatin	Simvastatin	117	37
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	114	21
Metoprolol Tartrate	Metoprolol Tartrate	111	35
Pravastatin Sodium	Pravastatin Sodium	111	31
Rosuvastatin Calcium	Rosuvastatin Calcium	111	32
Fluticasone Propionate	Fluticasone Propionate	110	49
Acetaminophen-Codeine	Acetaminophen With Codeine	108	24
Furosemide	Furosemide	103	34
Famotidine	Famotidine	101	33
Zolpidem Tartrate	Zolpidem Tartrate	101	27
Alprazolam	Alprazolam	100	24
Allopurinol	Allopurinol	96	22
Diazepam	Diazepam	89	14
Estradiol	Estradiol	88	31
Metoprolol Succinate	Metoprolol Succinate	87	27
Triamcinolone Acetonide	Triamcinolone Acetonide	86	53
Carvedilol	Carvedilol	85	27
Sertraline Hcl	Sertraline Hcl	84	23
Azithromycin	Azithromycin	83	72
Azelastine Hcl	Azelastine Hcl	81	42
Synthroid	Levothyroxine Sodium	81	20
Donepezil Hcl	Donepezil Hcl	79	24
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	78	25
Ibuprofen	Ibuprofen	78	20
Doxazosin Mesylate	Doxazosin Mesylate	77	21
Farxiga	Dapagliflozin Propanediol	77	19
Meloxicam	Meloxicam	73	18
Finasteride	Finasteride	69	20
Memantine Hcl	Memantine Hcl	68	11
Ciprofloxacin Hcl	Ciprofloxacin Hcl	67	55
Clopidogrel	Clopidogrel Bisulfate	67	19
Ozempic	Semaglutide	65	12
Quetiapine Fumarate	Quetiapine Fumarate	65	13
Venlafaxine Hcl Er	Venlafaxine Hcl	64	17
Pioglitazone Hcl	Pioglitazone Hcl	63	17
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	62	21
Mirtazapine	Mirtazapine	61	19
Alendronate Sodium	Alendronate Sodium	58	15
Trulicity	Dulaglutide	52	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	51	14
Propranolol Hcl	Propranolol Hcl	51	19
Bupropion Hcl Sr	Bupropion Hcl	49	16
Jardiance	Empagliflozin	49	suppressed
Atenolol	Atenolol	48	16
Dutasteride	Dutasteride	48	13
Clonidine Hcl	Clonidine Hcl	46	17
Metformin Hcl Er	Metformin Hcl	46	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	46	12
Benazepril Hcl	Benazepril Hcl	45	12
Clonazepam	Clonazepam	44	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	44	13
Montelukast Sodium	Montelukast Sodium	44	16
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	43	suppressed
Ropinirole Hcl	Ropinirole Hcl	42	12
Bupropion Xl	Bupropion Hcl	39	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	39	suppressed
Xarelto	Rivaroxaban	39	suppressed
Ezetimibe	Ezetimibe	37	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	36	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	36	12
Testosterone	Testosterone	35	suppressed
Acyclovir	Acyclovir	34	15
Escitalopram Oxalate	Escitalopram Oxalate	34	suppressed
Lactulose	Lactulose	34	20
Glimepiride	Glimepiride	33	suppressed
Hydralazine Hcl	Hydralazine Hcl	32	suppressed
Irbesartan	Irbesartan	32	suppressed
Valacyclovir	Valacyclovir Hcl	32	16
Buspirone Hcl	Buspirone Hcl	31	16
Chlorhexidine Gluconate	Chlorhexidine Gluconate	31	17
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	31	suppressed
Naproxen	Naproxen	31	13
Cephalexin	Cephalexin	30	23
Celecoxib	Celecoxib	29	suppressed
Duloxetine Hcl	Duloxetine Hcl	29	suppressed
Bumetanide	Bumetanide	27	suppressed
Ketoconazole	Ketoconazole	27	18
Paroxetine Hcl	Paroxetine Hcl	27	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	27	suppressed
Oxycodone Hcl	Oxycodone Hcl	26	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	25	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	25	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	25	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	24	suppressed
Clonidine	Clonidine	24	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	24	suppressed
Warfarin Sodium	Warfarin Sodium	24	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	23	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	23	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	23	23
Glipizide	Glipizide	22	suppressed
Mupirocin	Mupirocin	22	15
Propranolol Hcl Er	Propranolol Hcl	22	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	21	suppressed
Ipratropium Bromide	Ipratropium Bromide	21	suppressed
Arnuity Ellipta	Fluticasone Furoate	20	suppressed
Methylphenidate Er	Methylphenidate Hcl	20	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	19	suppressed
Humalog Kwikpen U-100	Insulin Lispro	19	suppressed
Myrbetriq	Mirabegron	19	suppressed
Aliskiren	Aliskiren Hemifumarate	18	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	18	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	18	suppressed
Naltrexone Hcl	Naltrexone Hcl	18	suppressed
Risperidone	Risperidone	18	suppressed
Breo Ellipta	Fluticasone/Vilanterol	17	suppressed
Colchicine	Colchicine	17	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	17	16
Lovastatin	Lovastatin	17	suppressed
Nitroglycerin	Nitroglycerin	17	11
Pregabalin	Pregabalin	17	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	17	15
Aimovig Autoinjector	Erenumab-Aooe	16	suppressed
Atomoxetine Hcl	Atomoxetine Hcl	16	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	16	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	16	suppressed
Terazosin Hcl	Terazosin Hcl	16	suppressed
Trimethoprim	Trimethoprim	16	suppressed
Amiodarone Hcl	Amiodarone Hcl	15	suppressed
Mupirocin	Mupirocin Calcium	15	suppressed
Nebivolol Hcl	Nebivolol Hcl	15	suppressed
Ondansetron Odt	Ondansetron	15	suppressed
Paxlovid (Eua)	Nirmatrelvir/Ritonavir	15	15
Bisoprolol Fumarate	Bisoprolol Fumarate	14	suppressed
Buprenorphine Hcl	Buprenorphine Hcl	14	suppressed
Estradiol (Once Weekly)	Estradiol	14	suppressed
Lamotrigine	Lamotrigine	14	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	14	14
Ventolin Hfa	Albuterol Sulfate	14	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	13	12
Lantus	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Meclizine Hcl	Meclizine Hcl	13	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	13	suppressed
Nystatin	Nystatin	13	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	13	suppressed
Digoxin	Digoxin	12	suppressed
Eszopiclone	Eszopiclone	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
Primidone	Primidone	12	suppressed
Progesterone	Progesterone, Micronized	12	suppressed
Prozac	Fluoxetine Hcl	12	suppressed
Valsartan	Valsartan	12	suppressed
Betamethasone Dipropionate	Betamethasone Dipropionate	11	suppressed
Cefuroxime	Cefuroxime Axetil	11	suppressed
Glipizide Er	Glipizide	11	suppressed
Hydrocortisone	Hydrocortisone	11	suppressed
Methotrexate	Methotrexate Sodium	11	suppressed
Metronidazole	Metronidazole	11	suppressed
Premarin	Estrogens, Conjugated	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