Healthcare provider profile · identity verified

Stephen En Ling, M.D.

Internal Medicine · MOUNTAIN VIEW, CA · NPI 1841337045

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
Amlodipine BesylateAmlodipine Besylate27298
Atorvastatin CalciumAtorvastatin Calcium20281
Losartan PotassiumLosartan Potassium20173
LisinoprilLisinopril15558
Levothyroxine SodiumLevothyroxine Sodium14049
Metformin HclMetformin Hcl13846
Tamsulosin HclTamsulosin Hcl11746
MeloxicamMeloxicam8549
Metformin Hcl ErMetformin Hcl8133
Fluticasone PropionateFluticasone Propionate8048
Metoprolol SuccinateMetoprolol Succinate7428
AtenololAtenolol5921
GlipizideGlipizide5119
AllopurinolAllopurinol4714
Alendronate SodiumAlendronate Sodium4619
CarvedilolCarvedilol4213
Metoprolol TartrateMetoprolol Tartrate4115
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4014
FinasterideFinasteride3916
Terazosin HclTerazosin Hcl3915
Montelukast SodiumMontelukast Sodium3613
Pioglitazone HclPioglitazone Hcl3412
SimvastatinSimvastatin31suppressed
FamotidineFamotidine3015
HydrochlorothiazideHydrochlorothiazide3012
Advair HfaFluticasone Propion/Salmeterol29suppressed
ColchicineColchicine29suppressed
Pantoprazole SodiumPantoprazole Sodium2912
Trazodone HclTrazodone Hcl2916
BumetanideBumetanide27suppressed
ClopidogrelClopidogrel Bisulfate27suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2712
Triamcinolone AcetonideTriamcinolone Acetonide2714
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen26suppressed
JardianceEmpagliflozin25suppressed
Clobetasol PropionateClobetasol Propionate2413
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf2323
Albuterol Sulfate HfaAlbuterol Sulfate2213
CephalexinCephalexin2117
OmeprazoleOmeprazole2112
PradaxaDabigatran Etexilate Mesylate21suppressed
Felodipine ErFelodipine20suppressed
GabapentinGabapentin20suppressed
Hydralazine HclHydralazine Hcl20suppressed
FurosemideFurosemide19suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
FluocinonideFluocinonide17suppressed
HydrocortisoneHydrocortisone1712
MirtazapineMirtazapine17suppressed
Clindamycin PhosphateClindamycin Phosphate16suppressed
Clonidine HclClonidine Hcl16suppressed
Zolpidem TartrateZolpidem Tartrate16suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
Mometasone FuroateMometasone Furoate14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
ChlorthalidoneChlorthalidone13suppressed
LorazepamLorazepam13suppressed
Oxycodone HclOxycodone Hcl13suppressed
Potassium ChloridePotassium Chloride13suppressed
TemazepamTemazepam13suppressed
Wixela InhubFluticasone Propion/Salmeterol13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
CelecoxibCelecoxib12suppressed
OzempicSemaglutide12suppressed
TradjentaLinagliptin12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Glipizide ErGlipizide11suppressed
Ipratropium BromideIpratropium Bromide11suppressed
NitroglycerinNitroglycerin11suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11suppressed
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
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