Healthcare provider profile · identity verified

Robert Donald Lew, M.D.

Internal Medicine · SAN DIEGO, CA · NPI 1730449596

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium455159
Amlodipine BesylateAmlodipine Besylate24292
Losartan PotassiumLosartan Potassium23888
Rosuvastatin CalciumRosuvastatin Calcium20174
LisinoprilLisinopril17061
Levothyroxine SodiumLevothyroxine Sodium14548
Metformin Hcl ErMetformin Hcl12547
OmeprazoleOmeprazole10846
Metoprolol TartrateMetoprolol Tartrate10740
Tamsulosin HclTamsulosin Hcl10439
SimvastatinSimvastatin10236
Terazosin HclTerazosin Hcl10035
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8031
Alendronate SodiumAlendronate Sodium7028
AllopurinolAllopurinol6925
HydrochlorothiazideHydrochlorothiazide6926
Metformin HclMetformin Hcl6724
OzempicSemaglutide66suppressed
JardianceEmpagliflozin5819
GabapentinGabapentin5124
Potassium ChloridePotassium Chloride5121
PradaxaDabigatran Etexilate Mesylate5019
Trazodone HclTrazodone Hcl5021
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4917
AtenololAtenolol4815
Nano 2nd Gen Pen NeedlePen Needle, Diabetic4615
FamotidineFamotidine4416
MeloxicamMeloxicam3819
Albuterol Sulfate HfaAlbuterol Sulfate3729
TemazepamTemazepam37suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3617
GlipizideGlipizide3415
EliquisApixaban3111
Victoza 2-PakLiraglutide30suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide29suppressed
Nifedipine ErNifedipine29suppressed
FurosemideFurosemide2819
ClopidogrelClopidogrel Bisulfate27suppressed
HydrocortisoneHydrocortisone26suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn25suppressed
LiraglutideLiraglutide24suppressed
Fluoxetine HclFluoxetine Hcl2311
Humulin RInsulin Regular, Human23suppressed
Tramadol HclTramadol Hcl23suppressed
FinasterideFinasteride22suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen22suppressed
Acetaminophen-CodeineAcetaminophen With Codeine21suppressed
Duloxetine HclDuloxetine Hcl21suppressed
KetoconazoleKetoconazole20suppressed
CarvedilolCarvedilol19suppressed
Pantoprazole SodiumPantoprazole Sodium19suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1818
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml18suppressed
LovastatinLovastatin17suppressed
ArexvyRsvpref3 Antigen/As01e/Pf1616
Metoprolol SuccinateMetoprolol Succinate16suppressed
EzetimibeEzetimibe14suppressed
MirtazapineMirtazapine14suppressed
Ondansetron OdtOndansetron1413
Tizanidine HclTizanidine Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1313
Pravastatin SodiumPravastatin Sodium13suppressed
SpironolactoneSpironolactone13suppressed
AcyclovirAcyclovir12suppressed
XareltoRivaroxaban12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
Bisoprolol FumarateBisoprolol Fumarate11suppressed
CefadroxilCefadroxil1111
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
Donepezil HclDonepezil Hcl11suppressed
Sertraline HclSertraline Hcl11suppressed
Wixela InhubFluticasone Propion/Salmeterol11suppressed

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
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