Healthcare provider profile · identity verified

Haley Nguyen

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · TUSTIN, CA · NPI 1194291484

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 Haley Nguyen received $940.35 in general payments during 2025 across 27 reported records.

Dexcom, Inc. accounted for 31.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 16 associated products.

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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Linzess by this doctor in 2024.

Gilead Sciences, 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 Vemlidy as an associated drug or biological on 782 records involving 554 distinct recipient NPIs. Public Medicare Part D data also shows 77 claims for Vemlidy by this doctor in 2024.

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

Payment overview · 2025

General Payments

$940.35

27 reported records · 13 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
Dexcom, Inc. Unresolved — no canonical attribution shown $297.5831.6%52025
Insulet Corporation Unresolved — no canonical attribution shown $213.4922.7%32025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $136.4514.5%52025
Amgen Inc. Unresolved — no canonical attribution shown $48.855.2%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $44.634.8%22025
ABBVIE INC. Unresolved — no canonical attribution shown $38.294.1%22025
Corcept Therapeutics Unresolved — no canonical attribution shown $29.543.1%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $29.523.1%12025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $23.272.5%12025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $22.222.4%12025
Mannkind Corporation Unresolved — no canonical attribution shown $19.402.1%12025
BETA BIONICS, INC. Unresolved — no canonical attribution shown $19.302.0%12025
IBSA Pharma Inc. Unresolved — no canonical attribution shown $17.811.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$940.3527

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
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $297.58 5 2025
Source payment records
OMNIPOD
Normalized: omnipod
Device Insulet Corporation $213.49 3 2025
Source payment records
TEPEZZA
Normalized: tepezza
Biological Amgen Inc. $48.85 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $44.63 2 2025
Source payment records
SYNTHROID
Normalized: synthroid
Drug ABBVIE INC. $38.29 2 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $29.54 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $29.52 1 2025
Source payment records
ISTURISA
Normalized: isturisa
Drug RECORDATI_RARE_DISEASES_INC. $23.27 1 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $22.22 1 2025
Source payment records
AFREZZA
Normalized: afrezza
Drug Mannkind Corporation $19.40 1 2025
Source payment records
iLet Bionic Pancreas
Normalized: ilet bionic pancreas
Device BETA BIONICS, INC. $19.30 1 2025
Source payment records
iLet Insulin Infusion Kit Contact Detach
Normalized: ilet insulin infusion kit contact detach
Device BETA BIONICS, INC. $19.30 1 2025
Source payment records
iLet Insulin Infusion Kit Inset
Normalized: ilet insulin infusion kit inset
Device BETA BIONICS, INC. $19.30 1 2025
Source payment records
Flector
Normalized: flector
Drug IBSA Pharma Inc. $17.81 1 2025
Source payment records
Licart
Normalized: licart
Drug IBSA Pharma Inc. $17.81 1 2025
Source payment records
Tirosint
Normalized: tirosint
Drug IBSA Pharma Inc. $17.81 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Vemlidy
open payments reported associated product
CMS Open Payments — General Payments
782 supporting records · 554 recipient NPIs · example record 1234350906
Vemlidy · 2024
Exact normalized brand match · 1 Part D row
77 16

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
OmeprazoleOmeprazole20894
Pantoprazole SodiumPantoprazole Sodium18986
FamotidineFamotidine11562
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl9491
Atorvastatin CalciumAtorvastatin Calcium7945
Peg3350-Sod Sul-Nacl-Kcl-Asb-CPeg3350/Sod Sul/Nacl/Kcl/Asb/C7979
VemlidyTenofovir Alafenamide7716
Losartan PotassiumLosartan Potassium5327
Amlodipine BesylateAmlodipine Besylate5032
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates4949
Dicyclomine HclDicyclomine Hcl4324
Metformin HclMetformin Hcl3113
Esomeprazole MagnesiumEsomeprazole Magnesium3015
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl2525
HydrocortisoneHydrocortisone2414
ZenpepLipase/Protease/Amylase24suppressed
Alendronate SodiumAlendronate Sodium2213
MesalamineMesalamine19suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
Diclofenac SodiumDiclofenac Sodium16suppressed
VascepaIcosapent Ethyl16suppressed
AmoxicillinAmoxicillin1515
ClarithromycinClarithromycin1515
FarxigaDapagliflozin Propanediol15suppressed
FurosemideFurosemide15suppressed
LinzessLinaclotide15suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads14suppressed
LansoprazoleLansoprazole14suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter14suppressed
Fluticasone PropionateFluticasone Propionate13suppressed
GabapentinGabapentin13suppressed
LoperamideLoperamide Hcl13suppressed
Metoprolol SuccinateMetoprolol Succinate13suppressed
Tenofovir Disoproxil FumarateTenofovir Disoproxil Fumarate13suppressed
Dexlansoprazole DrDexlansoprazole12suppressed
Azelastine HclAzelastine Hcl11suppressed
Icosapent EthylIcosapent Ethyl11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
Ondansetron OdtOndansetron11suppressed

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 $940.35 · 27 records Dexcom, Inc. AFREZZA, Dexcom G6 Transmitter, Flector, GVOKE HYPOPEN, ISTURISA, JARDIANCE, Korlym, Licart, OMNIPOD, SYNTHROID, TEPEZZA, Tirosint, Wegovy, iLet Bionic Pancreas, iLet Insulin Infusion Kit Contact Detach, iLet Insulin Infusion Kit Inset 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