Healthcare provider profile · identity verified

Eli Simon Tsou, MD

Family Practice · BALDWIN PARK, CA · NPI 1215008149

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	678	216
Losartan Potassium	Losartan Potassium	265	86
Amlodipine Besylate	Amlodipine Besylate	260	102
Lisinopril	Lisinopril	246	82
Metformin Hcl Er	Metformin Hcl	228	77
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	190	70
Glipizide	Glipizide	181	59
Metformin Hcl	Metformin Hcl	161	56
Terazosin Hcl	Terazosin Hcl	159	57
Rosuvastatin Calcium	Rosuvastatin Calcium	153	55
Potassium Chloride	Potassium Chloride	151	53
Atenolol	Atenolol	143	46
Simvastatin	Simvastatin	139	48
Levothyroxine Sodium	Levothyroxine Sodium	136	47
Omeprazole	Omeprazole	122	40
Gabapentin	Gabapentin	103	40
Meloxicam	Meloxicam	94	50
Metoprolol Tartrate	Metoprolol Tartrate	93	29
Furosemide	Furosemide	92	37
Allopurinol	Allopurinol	90	26
Albuterol Sulfate Hfa	Albuterol Sulfate	77	48
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	76	25
Tamsulosin Hcl	Tamsulosin Hcl	72	25
Alendronate Sodium	Alendronate Sodium	65	25
Hydralazine Hcl	Hydralazine Hcl	65	27
Triamcinolone Acetonide	Triamcinolone Acetonide	63	21
Finasteride	Finasteride	62	19
Jardiance	Empagliflozin	62	15
Trazodone Hcl	Trazodone Hcl	62	27
Bisoprolol Fumarate	Bisoprolol Fumarate	59	21
Humulin N	Insulin Nph Human Isophane	58	24
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	55	suppressed
Chlorthalidone	Chlorthalidone	54	20
Tramadol Hcl	Tramadol Hcl	42	12
Hydrochlorothiazide	Hydrochlorothiazide	41	17
Lactulose	Lactulose	39	suppressed
Buspirone Hcl	Buspirone Hcl	38	14
Humulin R	Insulin Regular, Human	38	13
Ibuprofen	Ibuprofen	38	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	38	11
Wixela Inhub	Fluticasone Propion/Salmeterol	37	13
Pradaxa	Dabigatran Etexilate Mesylate	36	11
Alvesco	Ciclesonide	35	23
Duloxetine Hcl	Duloxetine Hcl	33	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	32	15
Clopidogrel	Clopidogrel Bisulfate	31	13
Carvedilol	Carvedilol	30	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	29	29
Breyna	Budesonide/Formoterol Fumarate	28	12
Eliquis	Apixaban	28	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	28	19
Famotidine	Famotidine	27	suppressed
Veo Insulin Syringe	Syrge-Ndl,ins 0.3 Ml Half Mark	27	12
Prednisone	Prednisone	25	25
Morphine Sulfate Er	Morphine Sulfate	24	suppressed
Sertraline Hcl	Sertraline Hcl	24	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	23	suppressed
Ozempic	Semaglutide	22	suppressed
Spironolactone	Spironolactone	21	suppressed
Veo Insulin Syringe	Syringe And Needle,insulin,1ml	21	11
Doxycycline Monohydrate	Doxycycline Monohydrate	20	15
Isosorbide Mononitrate Er	Isosorbide Mononitrate	19	suppressed
Mirtazapine	Mirtazapine	19	suppressed
Mupirocin	Mupirocin	18	15
Pioglitazone Hcl	Pioglitazone Hcl	18	suppressed
Acyclovir	Acyclovir	16	suppressed
Colchicine	Colchicine	16	suppressed
Fluocinonide	Fluocinonide	16	suppressed
Naproxen	Naproxen	15	suppressed
Spiriva Respimat	Tiotropium Bromide	15	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	15	suppressed
Xarelto	Rivaroxaban	15	suppressed
Lidocaine Hcl Viscous	Lidocaine Hcl	14	suppressed
Veo Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	14	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	13	suppressed
Glipizide-Metformin	Glipizide/Metformin Hcl	13	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	12	12
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	12	11
Azelastine Hcl	Azelastine Hcl	12	suppressed
Morphine Sulfate	Morphine Sulfate	12	suppressed
Pravastatin Sodium	Pravastatin Sodium	12	suppressed
Propranolol Hcl	Propranolol Hcl	12	suppressed
Verapamil Er	Verapamil Hcl	12	suppressed
Entresto	Sacubitril/Valsartan	11	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	11	suppressed
Methadone Hcl	Methadone 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