Healthcare provider profile · identity verified

Winny Ou, MD

Allopathic & Osteopathic Physicians|Family Medicine · SOUTH EASTON, MA · NPI 1023003274

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 Winny Ou, MD received $64.22 in general payments during 2025 across 3 reported records.

Abbott Laboratories accounted for 69.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

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

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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Synthroid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$64.22

3 reported records · 2 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
Abbott Laboratories Unresolved — no canonical attribution shown $44.3069.0%22025
ABBVIE INC. Unresolved — no canonical attribution shown $19.9231.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$64.223

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
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $44.30 2 2025
Source payment records
SYNTHROID
Normalized: synthroid
Drug ABBVIE INC. $19.92 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $19.92 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
SYNTHROID
synthroid
2025 Synthroid 2024 25
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 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
25 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
Atorvastatin CalciumAtorvastatin Calcium593170
LisinoprilLisinopril456122
Levothyroxine SodiumLevothyroxine Sodium31960
OmeprazoleOmeprazole28490
Amlodipine BesylateAmlodipine Besylate22160
Metoprolol SuccinateMetoprolol Succinate16548
SimvastatinSimvastatin16141
LorazepamLorazepam13032
HydrochlorothiazideHydrochlorothiazide11830
GabapentinGabapentin11529
Losartan PotassiumLosartan Potassium11529
Albuterol Sulfate HfaAlbuterol Sulfate10541
Rosuvastatin CalciumRosuvastatin Calcium10436
PrednisonePrednisone9745
Sertraline HclSertraline Hcl9625
Alendronate SodiumAlendronate Sodium9327
IbuprofenIbuprofen9325
Escitalopram OxalateEscitalopram Oxalate8323
OzempicSemaglutide8215
Fluticasone PropionateFluticasone Propionate8033
AllopurinolAllopurinol7422
Fluoxetine HclFluoxetine Hcl7317
Metformin Hcl ErMetformin Hcl7022
ClonazepamClonazepam65suppressed
EliquisApixaban6218
Metformin HclMetformin Hcl6019
Pantoprazole SodiumPantoprazole Sodium6018
Trazodone HclTrazodone Hcl5919
Oxycodone HclOxycodone Hcl58suppressed
Zolpidem TartrateZolpidem Tartrate57suppressed
Terazosin HclTerazosin Hcl5617
FurosemideFurosemide5424
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen54suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen52suppressed
AtenololAtenolol5113
CarvedilolCarvedilol4916
CephalexinCephalexin4939
MirtazapineMirtazapine4914
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4715
Montelukast SodiumMontelukast Sodium4314
Cyclobenzaprine HclCyclobenzaprine Hcl4018
Venlafaxine Hcl ErVenlafaxine Hcl39suppressed
Metoprolol TartrateMetoprolol Tartrate37suppressed
Potassium ChloridePotassium Chloride3713
Breo ElliptaFluticasone/Vilanterol35suppressed
Tizanidine HclTizanidine Hcl3522
Paroxetine HclParoxetine Hcl34suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3323
Diclofenac SodiumDiclofenac Sodium3114
FluconazoleFluconazole3017
SpironolactoneSpironolactone30suppressed
Sumatriptan SuccinateSumatriptan Succinate30suppressed
CefuroximeCefuroxime Axetil2923
Doxycycline HyclateDoxycycline Hyclate2919
NystatinNystatin2917
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2923
MeloxicamMeloxicam28suppressed
Ondansetron OdtOndansetron2814
Trelegy ElliptaFluticasone/Umeclidin/Vilanter28suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2813
ValsartanValsartan28suppressed
ClopidogrelClopidogrel Bisulfate27suppressed
Duloxetine HclDuloxetine Hcl27suppressed
GlipizideGlipizide2712
ValacyclovirValacyclovir Hcl2717
Bupropion XlBupropion Hcl26suppressed
CelecoxibCelecoxib26suppressed
HydrocortisoneHydrocortisone2516
Pravastatin SodiumPravastatin Sodium25suppressed
SynthroidLevothyroxine Sodium25suppressed
TopiramateTopiramate25suppressed
Ciprofloxacin HclCiprofloxacin Hcl2422
Tramadol HclTramadol Hcl24suppressed
CarisoprodolCarisoprodol23suppressed
Wixela InhubFluticasone Propion/Salmeterol23suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine22suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide22suppressed
Betamethasone ValerateBetamethasone Valerate2116
Glipizide ErGlipizide21suppressed
Tamsulosin HclTamsulosin Hcl21suppressed
XareltoRivaroxaban21suppressed
AmoxicillinAmoxicillin2015
PaxlovidNirmatrelvir/Ritonavir2020
Bupropion Hcl SrBupropion Hcl18suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl18suppressed
Metoclopramide HclMetoclopramide Hcl18suppressed
EzetimibeEzetimibe17suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
PregabalinPregabalin17suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr16suppressed
JanuviaSitagliptin Phosphate16suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide16suppressed
Memantine HclMemantine Hcl16suppressed
FenofibrateFenofibrate,micronized15suppressed
LevofloxacinLevofloxacin15suppressed
MethocarbamolMethocarbamol15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog14suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine14suppressed
GemfibrozilGemfibrozil13suppressed
GlimepirideGlimepiride13suppressed
MetronidazoleMetronidazole13suppressed
Novolin 70-30Insulin Nph Hum/Reg Insulin Hm13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
AlprazolamAlprazolam12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
FentanylFentanyl12suppressed
Hydralazine HclHydralazine Hcl12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
Ropinirole HclRopinirole Hcl12suppressed
Verapamil SrVerapamil Hcl12suppressed
FamotidineFamotidine11suppressed
LevetiracetamLevetiracetam11suppressed
Meclizine HclMeclizine Hcl11suppressed
MounjaroTirzepatide11suppressed

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 $64.22 · 3 records Abbott Laboratories FREESTYLE LIBRE 3, SYNTHROID, UBRELVY 1
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