Healthcare provider profile · identity verified

Diep D Nguyen, DO

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · ALLENTOWN, PA · NPI 1417140468

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 Diep D Nguyen, DO received $423.42 in general payments during 2025 across 6 reported records.

Medtronic, Inc. accounted for 59.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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 152 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Rybelsus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$423.42

6 reported records · 3 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
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$253.5459.9%42025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $113.4026.8%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $56.4813.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$423.426

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
MINIMED 780G
Normalized: minimed 780g
Device Medtronic, Inc. $253.54 4 2025
Source payment records
RECORLEV
Normalized: recorlev
Drug Xeris Pharmaceuticals, Inc. $113.40 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
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
152 29
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
61 13

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
Levothyroxine SodiumLevothyroxine Sodium620165
Metformin Hcl ErMetformin Hcl24382
Rosuvastatin CalciumRosuvastatin Calcium16849
OzempicSemaglutide15229
Glipizide ErGlipizide14550
Lantus SolostarInsulin Glargine,hum.Rec.Anlog13554
TrulicityDulaglutide13126
MounjaroTirzepatide12826
Atorvastatin CalciumAtorvastatin Calcium12645
JardianceEmpagliflozin12433
GlipizideGlipizide11737
GlimepirideGlimepiride11132
SynthroidLevothyroxine Sodium10327
Nano 2nd Gen Pen NeedlePen Needle, Diabetic9642
FarxigaDapagliflozin Propanediol8622
Metformin HclMetformin Hcl8530
Novolog FlexpenInsulin Aspart7428
TradjentaLinagliptin7415
AllopurinolAllopurinol6618
MethimazoleMethimazole6417
RybelsusSemaglutide6113
Tresiba Flextouch U-100Insulin Degludec5719
Alendronate SodiumAlendronate Sodium5620
Losartan PotassiumLosartan Potassium5419
Synjardy XrEmpagliflozin/Metformin Hcl4912
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog4417
FenofibrateFenofibrate4415
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog43suppressed
Humalog Kwikpen U-100Insulin Lispro3913
GabapentinGabapentin3511
RamiprilRamipril33suppressed
SynjardyEmpagliflozin/Metformin Hcl31suppressed
EzetimibeEzetimibe29suppressed
Insulin Aspart FlexpenInsulin Aspart2913
Cinacalcet HclCinacalcet Hcl28suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic28suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro2716
FenofibrateFenofibrate Nanocrystallized26suppressed
BaqsimiGlucagon2311
DexamethasoneDexamethasone2316
Liothyronine SodiumLiothyronine Sodium23suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic2211
Vitamin D2Ergocalciferol (Vitamin D2)21suppressed
AcarboseAcarbose19suppressed
LisinoprilLisinopril19suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/719suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)18suppressed
VascepaIcosapent Ethyl18suppressed
RepaglinideRepaglinide17suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic17suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
Metoprolol TartrateMetoprolol Tartrate15suppressed
NovologInsulin Aspart15suppressed
TymlosAbaloparatide15suppressed
Xultophy 100-3.6Insulin Degludec/Liraglutide15suppressed
TirosintLevothyroxine Sodium14suppressed
Amlodipine BesylateAmlodipine Besylate13suppressed
Bupropion XlBupropion Hcl13suppressed
Droplet Pen NeedlePen Needle, Diabetic13suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads12suppressed
Ibandronate SodiumIbandronate Sodium12suppressed
Duloxetine HclDuloxetine Hcl11suppressed
Gvoke Hypopen 2-PackGlucagon1111

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 $423.42 · 6 records Medtronic, Inc. MINIMED 780G, RECORLEV 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