Healthcare provider profile · identity verified

Paul W. Grandon, MD

Internal Medicine · WAILUKU, HI · NPI 1215908959

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	943	308
Amlodipine Besylate	Amlodipine Besylate	388	130
Losartan Potassium	Losartan Potassium	384	141
Lisinopril	Lisinopril	375	121
Tamsulosin Hcl	Tamsulosin Hcl	252	78
Albuterol Sulfate Hfa	Albuterol Sulfate	246	80
Levothyroxine Sodium	Levothyroxine Sodium	223	72
Allopurinol	Allopurinol	209	66
Metoprolol Succinate	Metoprolol Succinate	203	66
Gabapentin	Gabapentin	185	63
Metformin Hcl Er	Metformin Hcl	172	58
Metformin Hcl	Metformin Hcl	153	47
Glipizide Er	Glipizide	142	39
Atenolol	Atenolol	134	42
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	132	37
Pantoprazole Sodium	Pantoprazole Sodium	115	37
Alendronate Sodium	Alendronate Sodium	113	43
Potassium Chloride	Potassium Chloride	108	35
Simvastatin	Simvastatin	107	36
Trazodone Hcl	Trazodone Hcl	107	31
Jardiance	Empagliflozin	102	33
Furosemide	Furosemide	96	39
Clopidogrel	Clopidogrel Bisulfate	92	32
Wixela Inhub	Fluticasone Propion/Salmeterol	90	36
Hydrochlorothiazide	Hydrochlorothiazide	85	30
Oxycodone Hcl	Oxycodone Hcl	81	24
Ezetimibe	Ezetimibe	75	25
Metoprolol Tartrate	Metoprolol Tartrate	75	25
Rosuvastatin Calcium	Rosuvastatin Calcium	75	26
Zolpidem Tartrate	Zolpidem Tartrate	72	22
Triamcinolone Acetonide	Triamcinolone Acetonide	71	37
Pradaxa	Dabigatran Etexilate Mesylate	67	26
Prednisone	Prednisone	66	46
Warfarin Sodium	Warfarin Sodium	65	18
Glipizide	Glipizide	62	21
Lorazepam	Lorazepam	61	16
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	59	19
Alprazolam	Alprazolam	58	25
Baclofen	Baclofen	57	17
Sertraline Hcl	Sertraline Hcl	54	25
Spironolactone	Spironolactone	54	20
Arexvy	Rsvpref3 Antigen/As01e/Pf	49	49
Spiriva Respimat	Tiotropium Bromide	48	17
Tenivac	Tetanus-Diphtheria Toxoids/Pf	47	47
Ozempic	Semaglutide	46	suppressed
Acyclovir	Acyclovir	45	16
Chlorthalidone	Chlorthalidone	45	20
Finasteride	Finasteride	45	13
Pravastatin Sodium	Pravastatin Sodium	45	16
Alvesco	Ciclesonide	43	16
Xarelto	Rivaroxaban	43	17
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	40	17
Shingrix	Varicella-Zoster Ge/As01b/Pf	40	36
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	36	11
Montelukast Sodium	Montelukast Sodium	35	11
Carvedilol	Carvedilol	31	suppressed
Humulin N	Insulin Nph Human Isophane	31	11
Estradiol	Estradiol	30	11
Bisoprolol Fumarate	Bisoprolol Fumarate	29	suppressed
Cephalexin	Cephalexin	29	26
Diazepam	Diazepam	29	suppressed
Duloxetine Hcl	Duloxetine Hcl	29	11
Insulin Syringe	Syringe And Needle,insulin,1ml	29	suppressed
Meloxicam	Meloxicam	29	14
Methylprednisolone	Methylprednisolone	29	24
Temazepam	Temazepam	29	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	28	suppressed
Ibuprofen	Ibuprofen	28	11
Ketoconazole	Ketoconazole	28	15
Pregabalin	Pregabalin	28	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	27	suppressed
Colchicine	Colchicine	26	15
Donepezil Hcl	Donepezil Hcl	26	suppressed
Clobetasol Propionate	Clobetasol Propionate	25	17
Hydroxyzine Hcl	Hydroxyzine Hcl	23	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	23	suppressed
Methocarbamol	Methocarbamol	23	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	23	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	22	20
Mirtazapine	Mirtazapine	22	suppressed
Humulin R	Insulin Regular, Human	21	suppressed
Azithromycin	Azithromycin	20	17
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	20	suppressed
Nifedipine Er	Nifedipine	20	suppressed
Tramadol Hcl	Tramadol Hcl	20	16
Liraglutide	Liraglutide	19	suppressed
Mupirocin	Mupirocin	19	suppressed
Nitroglycerin	Nitroglycerin	19	12
Testosterone	Testosterone	19	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	18	17
Humulin 70-30	Insulin Nph Hum/Reg Insulin Hm	18	suppressed
Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	18	suppressed
Torsemide	Torsemide	18	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	18	suppressed
Clonazepam	Clonazepam	17	suppressed
Armour Thyroid	Thyroid,pork	16	suppressed
Ondansetron Odt	Ondansetron	16	suppressed
Potassium Citrate Er	Potassium Citrate	16	suppressed
Tadalafil	Tadalafil	16	suppressed
Topiramate	Topiramate	16	suppressed
Trospium Chloride	Trospium Chloride	16	suppressed
Humalog Kwikpen U-100	Insulin Lispro	15	suppressed
Insulin Syringe	Syring-Needl,disp,insul,0.3 Ml	15	suppressed
Lactulose	Lactulose	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Terazosin Hcl	Terazosin Hcl	15	suppressed
Citalopram Hbr	Citalopram Hydrobromide	14	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	14	suppressed
Hydralazine Hcl	Hydralazine Hcl	14	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	14	suppressed
Paroxetine Hcl	Paroxetine Hcl	14	suppressed
Amoxicillin	Amoxicillin	13	suppressed
Buprenorphine Hcl	Buprenorphine Hcl	13	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	13	suppressed
Methimazole	Methimazole	13	suppressed
Omeprazole	Omeprazole	13	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	13	suppressed
Colestipol Hcl	Colestipol Hcl	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Nystatin	Nystatin	12	suppressed
Xifaxan	Rifaximin	12	suppressed
Memantine Hcl	Memantine Hcl	11	suppressed
Mesalamine	Mesalamine	11	suppressed
Morphine Sulfate	Morphine Sulfate	11	suppressed
Valacyclovir	Valacyclovir Hcl	11	suppressed
Venlafaxine Hcl Er	Venlafaxine 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