Healthcare provider profile · identity verified

Sung Jin John, MD

Family Practice · RIVERSIDE, CA · NPI 1013065085

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 Calcium309112
Amlodipine BesylateAmlodipine Besylate17566
Losartan PotassiumLosartan Potassium16162
Levothyroxine SodiumLevothyroxine Sodium14146
LisinoprilLisinopril13950
Rosuvastatin CalciumRosuvastatin Calcium13254
Metformin Hcl ErMetformin Hcl9435
GabapentinGabapentin9135
HydrochlorothiazideHydrochlorothiazide9135
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide9138
Metformin HclMetformin Hcl8132
Metoprolol TartrateMetoprolol Tartrate8029
OmeprazoleOmeprazole7835
GlipizideGlipizide7026
AtenololAtenolol6422
Pantoprazole SodiumPantoprazole Sodium6118
Humulin N KwikpenInsulin Nph Human Isophane5818
SimvastatinSimvastatin5619
Potassium ChloridePotassium Chloride5422
Triamcinolone AcetonideTriamcinolone Acetonide5325
Albuterol Sulfate HfaAlbuterol Sulfate5227
IbuprofenIbuprofen5216
PradaxaDabigatran Etexilate Mesylate5215
Nano 2nd Gen Pen NeedlePen Needle, Diabetic5119
Bisoprolol FumarateBisoprolol Fumarate5022
Hydralazine HclHydralazine Hcl4316
MeloxicamMeloxicam4018
Trazodone HclTrazodone Hcl3722
Pravastatin SodiumPravastatin Sodium3111
Duloxetine HclDuloxetine Hcl3016
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen30suppressed
Alendronate SodiumAlendronate Sodium2912
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen28suppressed
SpironolactoneSpironolactone2812
OzempicSemaglutide26suppressed
CiclopiroxCiclopirox2414
Humulin NInsulin Nph Human Isophane23suppressed
Sertraline HclSertraline Hcl23suppressed
NystatinNystatin22suppressed
Spiriva RespimatTiotropium Bromide22suppressed
Montelukast SodiumMontelukast Sodium21suppressed
Oxycodone HclOxycodone Hcl21suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
FurosemideFurosemide19suppressed
PrednisonePrednisone1916
Tamsulosin HclTamsulosin Hcl19suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1818
Buspirone HclBuspirone Hcl18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl18suppressed
CarvedilolCarvedilol16suppressed
JardianceEmpagliflozin16suppressed
Propranolol HclPropranolol Hcl16suppressed
Terazosin HclTerazosin Hcl16suppressed
Verapamil ErVerapamil Hcl16suppressed
AcyclovirAcyclovir15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
MethocarbamolMethocarbamol15suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
Clobetasol PropionateClobetasol Propionate13suppressed
Glipizide-MetforminGlipizide/Metformin Hcl13suppressed
AllopurinolAllopurinol12suppressed
EliquisApixaban11suppressed
HydrocortisoneHydrocortisone11suppressed
Veo Insulin SyringeSyringe And Needle,insulin,1ml11suppressed
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