Healthcare provider profile · identity verified

Michael I. Louie, MD

Internal Medicine · PLEASANTON, CA · NPI 1891847604

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	733	251
Lisinopril	Lisinopril	438	158
Levothyroxine Sodium	Levothyroxine Sodium	310	109
Losartan Potassium	Losartan Potassium	306	110
Amlodipine Besylate	Amlodipine Besylate	265	99
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	256	69
Metformin Hcl	Metformin Hcl	227	77
Hydrochlorothiazide	Hydrochlorothiazide	152	56
Alvesco	Ciclesonide	131	58
Metoprolol Tartrate	Metoprolol Tartrate	128	50
Terazosin Hcl	Terazosin Hcl	128	41
Famotidine	Famotidine	121	49
Glipizide	Glipizide	108	40
Fluticasone Propionate	Fluticasone Propionate	104	39
Ibuprofen	Ibuprofen	102	50
Tamsulosin Hcl	Tamsulosin Hcl	101	46
Atenolol	Atenolol	98	34
Alendronate Sodium	Alendronate Sodium	92	30
Gabapentin	Gabapentin	91	28
Hydralazine Hcl	Hydralazine Hcl	88	27
Jardiance	Empagliflozin	85	32
Breyna	Budesonide/Formoterol Fumarate	78	58
Prednisone	Prednisone	78	71
Furosemide	Furosemide	72	26
Metoprolol Succinate	Metoprolol Succinate	66	28
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	64	20
Trazodone Hcl	Trazodone Hcl	62	29
Simvastatin	Simvastatin	58	26
Pantoprazole Sodium	Pantoprazole Sodium	57	19
Fluocinonide	Fluocinonide	56	39
Metformin Hcl Er	Metformin Hcl	48	22
Omeprazole	Omeprazole	48	19
Amoxicillin	Amoxicillin	47	40
Pradaxa	Dabigatran Etexilate Mesylate	45	18
Veo Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	45	19
Triamcinolone Acetonide	Triamcinolone Acetonide	43	28
Carvedilol	Carvedilol	42	14
Hydrocortisone	Hydrocortisone	40	35
Sertraline Hcl	Sertraline Hcl	40	14
Albuterol Sulfate Hfa	Albuterol Sulfate	39	34
Colchicine	Colchicine	39	25
Finasteride	Finasteride	38	15
Allopurinol	Allopurinol	36	13
Citalopram Hbr	Citalopram Hydrobromide	36	13
Humulin N	Insulin Nph Human Isophane	36	14
Paxlovid	Nirmatrelvir/Ritonavir	34	34
Lovastatin	Lovastatin	33	13
Morphine Sulfate Er	Morphine Sulfate	33	suppressed
Clonidine Hcl	Clonidine Hcl	31	suppressed
Potassium Chloride	Potassium Chloride	31	14
Buspirone Hcl	Buspirone Hcl	30	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	29	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	28	27
Wixela Inhub	Fluticasone Propion/Salmeterol	28	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	27	11
Acyclovir	Acyclovir	25	15
Clobetasol Propionate	Clobetasol Propionate	25	12
Oxycodone Hcl	Oxycodone Hcl	25	15
Spironolactone	Spironolactone	25	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	24	24
Sucralfate	Sucralfate	24	suppressed
Tizanidine Hcl	Tizanidine Hcl	24	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	23	suppressed
Pravastatin Sodium	Pravastatin Sodium	23	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	21	11
Verapamil Er	Verapamil Hcl	21	suppressed
Azithromycin	Azithromycin	20	20
Spiriva Respimat	Tiotropium Bromide	20	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	19	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	16	suppressed
Lorazepam	Lorazepam	16	suppressed
Clopidogrel	Clopidogrel Bisulfate	15	suppressed
Fenofibrate	Fenofibrate	15	suppressed
Metronidazole	Metronidazole	15	suppressed
Montelukast Sodium	Montelukast Sodium	15	suppressed
Ozempic	Semaglutide	15	suppressed
Betamethasone Diprop Augmented	Betamethasone/Propylene Glyc	14	suppressed
Cephalexin	Cephalexin	14	14
Humulin 70-30	Insulin Nph Hum/Reg Insulin Hm	14	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	14	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	13	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	13	suppressed
Digoxin	Digoxin	12	suppressed
Mirtazapine	Mirtazapine	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	12
Meloxicam	Meloxicam	11	suppressed
Naproxen	Naproxen	11	suppressed
Ondansetron Hcl	Ondansetron Hcl	11	suppressed
Scopolamine	Scopolamine	11	11
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	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