Healthcare provider profile · identity verified

John Nick Chafos, MD

Family Practice · GREEN BROOK, NJ · NPI 1871673830

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
DexamethasoneDexamethasone277227
Atorvastatin CalciumAtorvastatin Calcium16664
Rosuvastatin CalciumRosuvastatin Calcium15261
Metoprolol SuccinateMetoprolol Succinate12649
CefdinirCefdinir125108
Amlodipine BesylateAmlodipine Besylate12457
Metformin HclMetformin Hcl12052
PrednisonePrednisone10966
Levothyroxine SodiumLevothyroxine Sodium10444
AzithromycinAzithromycin10292
Pantoprazole SodiumPantoprazole Sodium8338
OzempicSemaglutide8115
Escitalopram OxalateEscitalopram Oxalate8031
EliquisApixaban7719
LevofloxacinLevofloxacin6350
AlprazolamAlprazolam5933
Losartan PotassiumLosartan Potassium5521
RamiprilRamipril5523
Ciprofloxacin HclCiprofloxacin Hcl5347
CelecoxibCelecoxib5027
FamotidineFamotidine5020
CefadroxilCefadroxil4838
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4743
OmeprazoleOmeprazole4723
Tamsulosin HclTamsulosin Hcl4719
HydrochlorothiazideHydrochlorothiazide4617
LisinoprilLisinopril4620
FurosemideFurosemide4523
Potassium ChloridePotassium Chloride4520
Albuterol Sulfate HfaAlbuterol Sulfate4432
LorazepamLorazepam4322
Olmesartan MedoxomilOlmesartan Medoxomil39suppressed
Sertraline HclSertraline Hcl3815
Cefpodoxime ProxetilCefpodoxime Proxetil3725
FluconazoleFluconazole3722
FinasterideFinasteride3612
Doxepin HclDoxepin Hcl35suppressed
CefuroximeCefuroxime Axetil3432
Quetiapine FumarateQuetiapine Fumarate3411
Diltiazem 24hr Er (Cd)Diltiazem Hcl3316
ClopidogrelClopidogrel Bisulfate3211
Montelukast SodiumMontelukast Sodium3115
Pioglitazone HclPioglitazone Hcl3117
GabapentinGabapentin3016
SimvastatinSimvastatin30suppressed
Felodipine ErFelodipine29suppressed
ClonazepamClonazepam2813
Mometasone FuroateMometasone Furoate2822
Pravastatin SodiumPravastatin Sodium2711
Cyclobenzaprine HclCyclobenzaprine Hcl2620
Fluoxetine HclFluoxetine Hcl26suppressed
MupirocinMupirocin2522
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril24suppressed
AtenololAtenolol2412
PaxlovidNirmatrelvir/Ritonavir2424
EzetimibeEzetimibe2313
JanumetSitagliptin Phos/Metformin Hcl23suppressed
Tramadol HclTramadol Hcl2312
KetoconazoleKetoconazole2216
DiazepamDiazepam2111
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide21suppressed
Amitriptyline HclAmitriptyline Hcl20suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide20suppressed
TorsemideTorsemide20suppressed
Zolpidem TartrateZolpidem Tartrate20suppressed
Bupropion XlBupropion Hcl19suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride19suppressed
PregabalinPregabalin19suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1916
Trazodone HclTrazodone Hcl19suppressed
Warfarin SodiumWarfarin Sodium19suppressed
MounjaroTirzepatide18suppressed
Ondansetron OdtOndansetron1816
Meclizine HclMeclizine Hcl1715
MeloxicamMeloxicam1712
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen1713
AllopurinolAllopurinol16suppressed
IrbesartanIrbesartan16suppressed
RepaglinideRepaglinide16suppressed
Ropinirole HclRopinirole Hcl16suppressed
SpironolactoneSpironolactone16suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip1512
Colesevelam HclColesevelam Hcl14suppressed
HydrocortisoneHydrocortisone1411
LovastatinLovastatin14suppressed
Metoprolol TartrateMetoprolol Tartrate14suppressed
SotalolSotalol Hcl14suppressed
EntrestoSacubitril/Valsartan13suppressed
Hydralazine HclHydralazine Hcl13suppressed
Duloxetine HclDuloxetine Hcl12suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
Metformin Hcl ErMetformin Hcl12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
SynthroidLevothyroxine Sodium12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
XareltoRivaroxaban12suppressed
CarvedilolCarvedilol11suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Donepezil HclDonepezil Hcl11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
Nebivolol HclNebivolol Hcl11suppressed

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