Healthcare provider profile · identity verified

Lucy Yusun Won, D.O.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · LOS ANGELES, CA · NPI 1497172613

Profile state: payments and partd 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

CMS Open Payments records show Lucy Yusun Won, D.O. received $2,436.32 in general payments during 2025 across 95 reported records.

ABBVIE INC. accounted for 15.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Vraylar.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported VRAYLAR as an associated drug or biological on 377741 records involving 62704 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Vraylar by this doctor in 2024.

Janssen Pharmaceuticals, Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported INVEGA SUSTENNA as an associated drug or biological on 39068 records involving 11966 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Invega Sustenna by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$2,436.32

95 reported records · 11 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
ABBVIE INC. Unresolved — no canonical attribution shown $380.3215.6%192025
Alkermes, Inc. Unresolved — no canonical attribution shown $347.6214.3%122025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $301.7712.4%132025
Lundbeck LLC Unresolved — no canonical attribution shown $267.1011.0%92025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $240.899.9%62025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $237.369.7%92025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $229.469.4%92025
Almatica Pharma LLC Unresolved — no canonical attribution shown $205.258.4%92025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $159.876.6%62025
Corium, LLC Unresolved — no canonical attribution shown $49.922.0%22025
Neos Therapeutics, LP Unresolved — no canonical attribution shown $16.760.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,436.3295

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $407.87 14 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $380.32 19 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $347.62 12 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $347.62 12 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $301.77 13 2025
Source payment records
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc $240.89 6 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $229.46 9 2025
Source payment records
LOREEV XR
Normalized: loreev xr
Drug Almatica Pharma LLC $205.25 9 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $159.87 6 2025
Source payment records
ABILIFY MAINTENA
Normalized: abilify maintena
Drug Otsuka America Pharmaceutical, Inc. $75.61 3 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $49.92 2 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Otsuka America Pharmaceutical, Inc. $20.98 1 2025
Source payment records
EXXUA
Normalized: exxua
Drug Neos Therapeutics, LP $16.76 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
VRAYLAR
vraylar
2025 Vraylar 2024 16
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 VRAYLAR
open payments reported associated product
CMS Open Payments — General Payments
377741 supporting records · 62704 recipient NPIs · example record 1201352550
Vraylar · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
Janssen Pharmaceuticals, Inc
Exact reporting entity; no affiliate inference
2025 INVEGA SUSTENNA
open payments reported associated product
CMS Open Payments — General Payments
39068 supporting records · 11966 recipient NPIs · example record 1174223262
Invega Sustenna · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS

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

BrandGenericClaimsBeneficiaries
Escitalopram OxalateEscitalopram Oxalate48998
Sertraline HclSertraline Hcl469100
Quetiapine FumarateQuetiapine Fumarate37562
Trazodone HclTrazodone Hcl32969
RisperidoneRisperidone21533
LorazepamLorazepam20257
MirtazapineMirtazapine17848
OlanzapineOlanzapine17131
AlprazolamAlprazolam16025
Duloxetine HclDuloxetine Hcl15529
Zolpidem TartrateZolpidem Tartrate15538
Buspirone HclBuspirone Hcl15434
LamotrigineLamotrigine13323
Benztropine MesylateBenztropine Mesylate11522
Divalproex Sodium ErDivalproex Sodium11327
Venlafaxine Hcl ErVenlafaxine Hcl10414
ClonazepamClonazepam9519
AripiprazoleAripiprazole9423
GabapentinGabapentin9316
Fluoxetine HclFluoxetine Hcl8721
Lithium CarbonateLithium Carbonate56suppressed
Quetiapine Fumarate ErQuetiapine Fumarate55suppressed
Divalproex SodiumDivalproex Sodium5213
Citalopram HbrCitalopram Hydrobromide49suppressed
Bupropion HclBupropion Hcl4817
ClozapineClozapine48suppressed
Bupropion XlBupropion Hcl46suppressed
TemazepamTemazepam45suppressed
Vilazodone HclVilazodone Hcl37suppressed
Atomoxetine HclAtomoxetine Hcl36suppressed
Bupropion Hcl SrBupropion Hcl33suppressed
Lurasidone HclLurasidone Hcl33suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine30suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine29suppressed
HaloperidolHaloperidol28suppressed
Hydroxyzine PamoateHydroxyzine Pamoate26suppressed
Paroxetine HclParoxetine Hcl24suppressed
Fluphenazine HclFluphenazine Hcl22suppressed
Propranolol HclPropranolol Hcl20suppressed
Paliperidone ErPaliperidone16suppressed
VraylarCariprazine Hcl16suppressed
Hydroxyzine HclHydroxyzine Hcl15suppressed
Lithium Carbonate ErLithium Carbonate13suppressed
Methylphenidate HclMethylphenidate Hcl13suppressed
Invega SustennaPaliperidone Palmitate11suppressed
PerphenazinePerphenazine11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $2,436.32 · 95 records ABBVIE INC. ABILIFY ASIMTUFII, ABILIFY MAINTENA, ARISTADA, Auvelity, Azstarys, CAPLYTA, COBENFY, EXXUA, LOREEV XR, LYBALVI, REXULTI, SPRAVATO, VRAYLAR 2
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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