Healthcare provider profile · identity verified

Gary T. Lai, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · CHINO, CA · NPI 1245332220

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 Gary T. Lai, M.D. received $47.92 in general payments during 2025 across 2 reported records.

Novo Nordisk Inc accounted for 70.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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 30 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

$47.92

2 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $33.9370.8%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $13.9929.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$47.922

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
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $13.99 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
30 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
Amlodipine BesylateAmlodipine Besylate34897
Atorvastatin CalciumAtorvastatin Calcium28481
Losartan PotassiumLosartan Potassium22474
Metformin HclMetformin Hcl19759
Rosuvastatin CalciumRosuvastatin Calcium12643
Levothyroxine SodiumLevothyroxine Sodium11626
FamotidineFamotidine9717
HydrochlorothiazideHydrochlorothiazide8818
LisinoprilLisinopril7729
SimvastatinSimvastatin7623
Donepezil HclDonepezil Hcl73suppressed
Memantine HclMemantine Hcl71suppressed
Tamsulosin HclTamsulosin Hcl7018
Metoprolol SuccinateMetoprolol Succinate6923
Pantoprazole SodiumPantoprazole Sodium6719
CarvedilolCarvedilol6419
GlipizideGlipizide6322
Alendronate SodiumAlendronate Sodium5815
EliquisApixaban48suppressed
FurosemideFurosemide4813
FinasterideFinasteride45suppressed
ClopidogrelClopidogrel Bisulfate4415
Albuterol Sulfate HfaAlbuterol Sulfate4314
IbuprofenIbuprofen4115
Quetiapine FumarateQuetiapine Fumarate40suppressed
AtenololAtenolol3913
AllopurinolAllopurinol3715
OmeprazoleOmeprazole3714
Divalproex SodiumDivalproex Sodium36suppressed
Metoprolol TartrateMetoprolol Tartrate35suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3217
GabapentinGabapentin3112
Lantus SolostarInsulin Glargine,hum.Rec.Anlog31suppressed
OzempicSemaglutide30suppressed
Sildenafil CitrateSildenafil Citrate29suppressed
Potassium ChloridePotassium Chloride28suppressed
RexultiBrexpiprazole28suppressed
FenofibrateFenofibrate Nanocrystallized27suppressed
Sertraline HclSertraline Hcl27suppressed
JardianceEmpagliflozin26suppressed
EzetimibeEzetimibe25suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide2311
Humalog Kwikpen U-100Insulin Lispro21suppressed
SpironolactoneSpironolactone21suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog20suppressed
Montelukast SodiumMontelukast Sodium20suppressed
Pioglitazone HclPioglitazone Hcl20suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
Clobetasol PropionateClobetasol Propionate18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl18suppressed
Fluticasone PropionateFluticasone Propionate17suppressed
Novolin R FlexpenInsulin Regular, Human17suppressed
RivastigmineRivastigmine Tartrate16suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
Icosapent EthylIcosapent Ethyl15suppressed
MeloxicamMeloxicam15suppressed
FenofibrateFenofibrate14suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate14suppressed
KerendiaFinerenone14suppressed
MirtazapineMirtazapine14suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
IrbesartanIrbesartan13suppressed
EntecavirEntecavir12suppressed
EntrestoSacubitril/Valsartan12suppressed
KetoconazoleKetoconazole12suppressed
NystatinNystatin12suppressed
Paroxetine HclParoxetine Hcl12suppressed
RisperidoneRisperidone12suppressed
Benazepril HclBenazepril Hcl11suppressed
CreonLipase/Protease/Amylase11suppressed
GemfibrozilGemfibrozil11suppressed
LactuloseLactulose11suppressed
Metformin Hcl ErMetformin Hcl11suppressed
NaproxenNaproxen11suppressed
Valproic AcidValproic Acid (As Sodium Salt)11suppressed

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 $47.92 · 2 records Novo Nordisk Inc Cologuard Collection Kit 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