Healthcare provider profile · identity verified

Winnie Nhan, DO

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · GLEN ELLYN, IL · NPI 1245681709

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 Winnie Nhan, DO received $392.59 in general payments during 2025 across 20 reported records.

Abbott Laboratories accounted for 27.4% 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: Jardiance, Mounjaro, Ozempic, 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 16 claims for Synthroid by this doctor in 2024.

Boehringer Ingelheim 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 260 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 260 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 91 claims for Mounjaro by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 55 claims for Trulicity by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 262 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$392.59

20 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
Abbott Laboratories Unresolved — no canonical attribution shown $107.5527.4%42025
Novo Nordisk Inc Unresolved — no canonical attribution shown $63.7316.2%32025
Sequel Med Tech, LLC Unresolved — no canonical attribution shown $47.3812.1%32025
Insulet Corporation Unresolved — no canonical attribution shown $43.7811.2%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $31.067.9%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.705.0%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $18.834.8%12025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.014.3%12025
Amgen Inc. Unresolved — no canonical attribution shown $15.363.9%12025
ABBVIE INC. Unresolved — no canonical attribution shown $14.103.6%12025
Radius Health, Inc. Unresolved — no canonical attribution shown $14.093.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$392.5920

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 $107.55 4 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $63.73 3 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $63.73 3 2025
Source payment records
TWIIST
Normalized: twiist
Device Sequel Med Tech, LLC $47.38 3 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $43.78 2 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $31.06 2 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $31.06 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $19.70 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $18.83 1 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $17.01 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $15.36 1 2025
Source payment records
SYNTHROID
Normalized: synthroid
Drug ABBVIE INC. $14.10 1 2025
Source payment records
Tymlos
Normalized: tymlos
Drug Radius Health, Inc. $14.09 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
JARDIANCE
jardiance
2025 Jardiance 2024 260 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 91 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 262 exact normalized Medicare Part D
SYNTHROID
synthroid
2025 Synthroid 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 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
16 suppressed by CMS
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
260 80
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
260 80
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
91 20
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
55 16
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
262 69

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
Metformin HclMetformin Hcl403135
GlimepirideGlimepiride346101
Levothyroxine SodiumLevothyroxine Sodium316106
OzempicSemaglutide26269
JardianceEmpagliflozin26080
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24885
Metformin Hcl ErMetformin Hcl17765
Alendronate SodiumAlendronate Sodium15857
Pioglitazone HclPioglitazone Hcl15357
Novolog FlexpenInsulin Aspart10942
Nano 2nd Gen Pen NeedlePen Needle, Diabetic9644
MounjaroTirzepatide9120
GlipizideGlipizide8929
MethimazoleMethimazole8727
Glipizide ErGlipizide8225
Humalog Kwikpen U-100Insulin Lispro7832
FarxigaDapagliflozin Propanediol5619
TrulicityDulaglutide5516
Atorvastatin CalciumAtorvastatin Calcium4918
Tresiba Flextouch U-100Insulin Degludec4919
JanuviaSitagliptin Phosphate4814
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog4817
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic4019
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog3417
Droplet Pen NeedlePen Needle, Diabetic3314
Fiasp FlextouchInsulin Aspart (Niacinamide)3216
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog3113
GabapentinGabapentin23suppressed
Humulin R U-500 KwikpenInsulin Regular, Human23suppressed
TradjentaLinagliptin23suppressed
HydrocortisoneHydrocortisone22suppressed
LantusInsulin Glargine,hum.Rec.Anlog19suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro18suppressed
JanumetSitagliptin Phos/Metformin Hcl17suppressed
LisinoprilLisinopril17suppressed
Rosuvastatin CalciumRosuvastatin Calcium16suppressed
SynthroidLevothyroxine Sodium16suppressed
Trueplus Pen NeedlePen Needle, Diabetic16suppressed
NovologInsulin Aspart15suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic15suppressed
Humalog Kwikpen U-200Insulin Lispro14suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
AcarboseAcarbose13suppressed
TestosteroneTestosterone13suppressed
DexamethasoneDexamethasone1212
Gvoke Hypopen 2-PackGlucagon12suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp12suppressed
SimvastatinSimvastatin12suppressed
Ibandronate SodiumIbandronate Sodium11suppressed
Pravastatin SodiumPravastatin Sodium11suppressed

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 $392.59 · 20 records Abbott Laboratories Dexcom G6 Transmitter, EVENITY, FREESTYLE LIBRE 3, GVOKE HYPOPEN, JARDIANCE, MOUNJARO, Omnipod, Ozempic, Rybelsus, SYNTHROID, TWIIST, Tymlos, ZEPBOUND 6
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