Healthcare provider profile · identity verified

Shih-Fan Sun

Internal Medicine · ROLLING HILLS ESTATES, CA · NPI 1003234063

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 Calcium373117
Losartan PotassiumLosartan Potassium26084
Amlodipine BesylateAmlodipine Besylate25273
Rosuvastatin CalciumRosuvastatin Calcium16859
Levothyroxine SodiumLevothyroxine Sodium14847
Zolpidem TartrateZolpidem Tartrate11828
Tamsulosin HclTamsulosin Hcl10840
Trazodone HclTrazodone Hcl10037
GabapentinGabapentin9134
Metformin Hcl ErMetformin Hcl8329
AllopurinolAllopurinol7622
LisinoprilLisinopril7426
AlprazolamAlprazolam7313
Metformin HclMetformin Hcl7120
SimvastatinSimvastatin7126
EliquisApixaban6717
FurosemideFurosemide6219
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen60suppressed
AzithromycinAzithromycin5852
OmeprazoleOmeprazole5320
Pravastatin SodiumPravastatin Sodium5019
Donepezil HclDonepezil Hcl4911
Fluticasone PropionateFluticasone Propionate4828
Metoprolol SuccinateMetoprolol Succinate4816
Albuterol Sulfate HfaAlbuterol Sulfate4525
Escitalopram OxalateEscitalopram Oxalate4516
FinasterideFinasteride4216
Citalopram HbrCitalopram Hydrobromide40suppressed
HydrochlorothiazideHydrochlorothiazide4016
MeloxicamMeloxicam3818
Azelastine HclAzelastine Hcl3519
FamotidineFamotidine3416
Pantoprazole SodiumPantoprazole Sodium3320
Memantine HclMemantine Hcl30suppressed
Olmesartan MedoxomilOlmesartan Medoxomil3012
Triamcinolone AcetonideTriamcinolone Acetonide2927
AtenololAtenolol28suppressed
CarvedilolCarvedilol2811
Hydroxyzine HclHydroxyzine Hcl2812
DiazepamDiazepam27suppressed
Potassium ChloridePotassium Chloride27suppressed
Alendronate SodiumAlendronate Sodium26suppressed
Duloxetine HclDuloxetine Hcl25suppressed
ChlorthalidoneChlorthalidone23suppressed
Quetiapine FumarateQuetiapine Fumarate23suppressed
SynthroidLevothyroxine Sodium23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2221
EzetimibeEzetimibe22suppressed
Hydralazine HclHydralazine Hcl22suppressed
PregabalinPregabalin22suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide21suppressed
LorazepamLorazepam21suppressed
PaxlovidNirmatrelvir/Ritonavir2020
Sertraline HclSertraline Hcl20suppressed
Bupropion XlBupropion Hcl19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1914
Benazepril HclBenazepril Hcl18suppressed
EszopicloneEszopiclone18suppressed
Metoprolol TartrateMetoprolol Tartrate18suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen18suppressed
ClopidogrelClopidogrel Bisulfate17suppressed
Doxycycline HyclateDoxycycline Hyclate1716
Tramadol HclTramadol Hcl17suppressed
KetoconazoleKetoconazole1614
MyrbetriqMirabegron16suppressed
CephalexinCephalexin1514
MirtazapineMirtazapine15suppressed
Ondansetron OdtOndansetron1514
ValacyclovirValacyclovir Hcl15suppressed
Wixela InhubFluticasone Propion/Salmeterol15suppressed
FenofibrateFenofibrate Nanocrystallized14suppressed
JardianceEmpagliflozin14suppressed
Montelukast SodiumMontelukast Sodium14suppressed
MupirocinMupirocin1411
Nifedipine ErNifedipine14suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1411
TelmisartanTelmisartan14suppressed
ImitrexSumatriptan Succinate13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1311
CefdinirCefdinir12suppressed
DuleraMometasone/Formoterol12suppressed
Propranolol HclPropranolol Hcl12suppressed
ScopolamineScopolamine12suppressed
Alprazolam ErAlprazolam11suppressed
ClonazepamClonazepam11suppressed
IbuprofenIbuprofen11suppressed
Ipratropium BromideIpratropium Bromide11suppressed
ValsartanValsartan11suppressed

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