Healthcare provider profile · identity verified

Richard Dejong

Family Practice · CHICAGO, IL · NPI 1871531103

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 Calcium187104
Losartan PotassiumLosartan Potassium17183
Amlodipine BesylateAmlodipine Besylate14573
Levothyroxine SodiumLevothyroxine Sodium14367
Rosuvastatin CalciumRosuvastatin Calcium12656
Metoprolol SuccinateMetoprolol Succinate10346
Metformin HclMetformin Hcl9548
SimvastatinSimvastatin8637
OmeprazoleOmeprazole8347
LisinoprilLisinopril7939
Pantoprazole SodiumPantoprazole Sodium7939
HydrochlorothiazideHydrochlorothiazide6837
Tamsulosin HclTamsulosin Hcl5922
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4824
Escitalopram OxalateEscitalopram Oxalate4017
AllopurinolAllopurinol3616
Fluoxetine HclFluoxetine Hcl36suppressed
Potassium ChloridePotassium Chloride3522
GabapentinGabapentin3416
Pravastatin SodiumPravastatin Sodium3112
GlimepirideGlimepiride3018
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2812
Sertraline HclSertraline Hcl2513
Metformin Hcl ErMetformin Hcl2414
FenofibrateFenofibrate Nanocrystallized23suppressed
Metoprolol TartrateMetoprolol Tartrate2312
AlprazolamAlprazolam2214
ClopidogrelClopidogrel Bisulfate2212
FinasterideFinasteride22suppressed
FurosemideFurosemide2212
Olmesartan MedoxomilOlmesartan Medoxomil2213
CarvedilolCarvedilol20suppressed
EliquisApixaban20suppressed
IrbesartanIrbesartan19suppressed
EzetimibeEzetimibe1812
FamotidineFamotidine16suppressed
SynthroidLevothyroxine Sodium16suppressed
Fluticasone PropionateFluticasone Propionate1512
SpironolactoneSpironolactone15suppressed
Alendronate SodiumAlendronate Sodium14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
Propranolol Hcl ErPropranolol Hcl14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
AtenololAtenolol13suppressed
PrednisonePrednisone13suppressed
ValsartanValsartan13suppressed
Bupropion XlBupropion Hcl12suppressed
XareltoRivaroxaban12suppressed
Albuterol Sulfate HfaAlbuterol Sulfate11suppressed
LovastatinLovastatin11suppressed

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