Healthcare provider profile · identity verified

Jonathan Zimmerman, MD

Allopathic & Osteopathic Physicians|Internal Medicine · GREENWICH, CT · NPI 1609856897

Profile state: payments and partd 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

CMS Open Payments records show Jonathan Zimmerman, MD received $66.32 in general payments during 2025 across 3 reported records.

Amgen Inc. accounted for 52.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$66.32

3 reported records · 3 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Amgen Inc. Unresolved — no canonical attribution shown $35.0052.8%12025
ViiV Healthcare Company Unresolved — no canonical attribution shown $16.1824.4%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $15.1422.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$66.323

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $35.00 1 2025
Source payment records
CABENUVA
Normalized: cabenuva
Drug ViiV Healthcare Company $16.18 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $15.14 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium338104
Amlodipine BesylateAmlodipine Besylate31496
Metformin HclMetformin Hcl15036
LisinoprilLisinopril14844
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen11722
OmeprazoleOmeprazole10428
HydrochlorothiazideHydrochlorothiazide9733
AlprazolamAlprazolam9114
Olmesartan MedoxomilOlmesartan Medoxomil9029
Losartan PotassiumLosartan Potassium8731
SpironolactoneSpironolactone8422
SimvastatinSimvastatin8022
OzempicSemaglutide7812
Metoprolol TartrateMetoprolol Tartrate7322
Levothyroxine SodiumLevothyroxine Sodium7022
EliquisApixaban6312
Pantoprazole SodiumPantoprazole Sodium6319
AtenololAtenolol6216
JardianceEmpagliflozin5913
Fluticasone PropionateFluticasone Propionate5518
Albuterol Sulfate HfaAlbuterol Sulfate5418
Metoprolol SuccinateMetoprolol Succinate5419
GabapentinGabapentin4916
Sertraline HclSertraline Hcl4611
ChlorthalidoneChlorthalidone4312
Duloxetine HclDuloxetine Hcl4311
FamotidineFamotidine4115
TrulicityDulaglutide41suppressed
FarxigaDapagliflozin Propanediol4012
CarvedilolCarvedilol3812
Oxycodone HclOxycodone Hcl37suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog36suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl3212
ClopidogrelClopidogrel Bisulfate31suppressed
Potassium ChloridePotassium Chloride30suppressed
Tamsulosin HclTamsulosin Hcl30suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter29suppressed
Ondansetron OdtOndansetron27suppressed
Metformin Hcl ErMetformin Hcl26suppressed
Pravastatin SodiumPravastatin Sodium25suppressed
Tramadol HclTramadol Hcl25suppressed
Escitalopram OxalateEscitalopram Oxalate24suppressed
Pioglitazone HclPioglitazone Hcl24suppressed
AllopurinolAllopurinol23suppressed
EzetimibeEzetimibe23suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol23suppressed
Tresiba Flextouch U-200Insulin Degludec21suppressed
XareltoRivaroxaban21suppressed
Zolpidem TartrateZolpidem Tartrate21suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads20suppressed
PrednisonePrednisone19suppressed
AripiprazoleAripiprazole18suppressed
FurosemideFurosemide18suppressed
LovastatinLovastatin18suppressed
ClonazepamClonazepam17suppressed
Clonidine HclClonidine Hcl17suppressed
Incruse ElliptaUmeclidinium Bromide17suppressed
Trazodone HclTrazodone Hcl17suppressed
Warfarin SodiumWarfarin Sodium17suppressed
Novolog FlexpenInsulin Aspart16suppressed
Easy Comfort Pen NeedlePen Needle, Diabetic15suppressed
Fluticasone Propionate HfaFluticasone Propionate15suppressed
EntrestoSacubitril/Valsartan14suppressed
SynthroidLevothyroxine Sodium14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
Alcohol PadsAlcohol Antiseptic Pads13suppressed
Buspirone HclBuspirone Hcl13suppressed
Fluoxetine HclFluoxetine Hcl13suppressed
SymbicortBudesonide/Formoterol Fumarate13suppressed
Varenicline TartrateVarenicline Tartrate13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril12suppressed
Atrovent HfaIpratropium Bromide12suppressed
HumalogInsulin Lispro12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Morphine SulfateMorphine Sulfate12suppressed
RisperidoneRisperidone12suppressed
JanuviaSitagliptin Phosphate11suppressed
LevetiracetamLevetiracetam11suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
PregabalinPregabalin11suppressed
Serevent DiskusSalmeterol Xinafoate11suppressed
Venlafaxine Hcl ErVenlafaxine 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 $66.32 · 3 records Amgen Inc. CABENUVA, Cologuard Collection Kit, KRYSTEXXA
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