Healthcare provider profile · identity verified

John Richard Dingilian, MD

Allopathic & Osteopathic Physicians|Family Medicine · SIMI VALLEY, CA · NPI 1295828291

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 John Richard Dingilian, MD received $53.40 in general payments during 2025 across 2 reported records.

ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) accounted for 53.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Payment overview · 2025

General Payments

$53.40

2 reported records · 2 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
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) Unresolved — no canonical attribution shown $28.7753.9%12025
W. L. Gore & Associates, Inc. Unresolved — no canonical attribution shown $24.6346.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$53.402

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
LifeVest
Normalized: lifevest
Device ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $28.77 1 2025
Source payment records
GORE TAG Conformable Thoracic Endoprosthesis
Normalized: gore tag conformable thoracic endoprosthesis
Device W. L. Gore & Associates, Inc. $24.63 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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 Calcium16150
Losartan PotassiumLosartan Potassium14344
Levothyroxine SodiumLevothyroxine Sodium13137
Pantoprazole SodiumPantoprazole Sodium11831
Rosuvastatin CalciumRosuvastatin Calcium9926
Amlodipine BesylateAmlodipine Besylate9230
Metformin HclMetformin Hcl9031
Sertraline HclSertraline Hcl8017
Trazodone HclTrazodone Hcl7920
GabapentinGabapentin7123
Metoprolol SuccinateMetoprolol Succinate6521
OmeprazoleOmeprazole6217
Potassium ChloridePotassium Chloride6211
FurosemideFurosemide5818
Escitalopram OxalateEscitalopram Oxalate5512
Tamsulosin HclTamsulosin Hcl5015
AtenololAtenolol48suppressed
OzempicSemaglutide48suppressed
HydrochlorothiazideHydrochlorothiazide45suppressed
LisinoprilLisinopril4413
AlprazolamAlprazolam4314
Montelukast SodiumMontelukast Sodium43suppressed
SimvastatinSimvastatin42suppressed
XareltoRivaroxaban4113
AllopurinolAllopurinol3913
Hydroxyzine HclHydroxyzine Hcl39suppressed
Metoprolol TartrateMetoprolol Tartrate3912
EliquisApixaban38suppressed
PrednisonePrednisone3816
MeloxicamMeloxicam3713
SynthroidLevothyroxine Sodium37suppressed
MirtazapineMirtazapine34suppressed
ClopidogrelClopidogrel Bisulfate31suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3016
CarvedilolCarvedilol2913
FinasterideFinasteride29suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen28suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide26suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid25suppressed
CefdinirCefdinir2317
Ropinirole HclRopinirole Hcl22suppressed
Buspirone HclBuspirone Hcl21suppressed
FamotidineFamotidine21suppressed
JardianceEmpagliflozin21suppressed
Benazepril HclBenazepril Hcl20suppressed
AripiprazoleAripiprazole19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
AzithromycinAzithromycin1815
Duloxetine HclDuloxetine Hcl18suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1811
ValsartanValsartan18suppressed
CelecoxibCelecoxib17suppressed
LorazepamLorazepam16suppressed
Tramadol HclTramadol Hcl1612
Fluoxetine HclFluoxetine Hcl15suppressed
Fluticasone PropionateFluticasone Propionate15suppressed
Ondansetron HclOndansetron Hcl15suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1511
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Candesartan CilexetilCandesartan Cilexetil13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
Nebivolol HclNebivolol Hcl13suppressed
Pioglitazone HclPioglitazone Hcl13suppressed
Tolterodine Tartrate ErTolterodine Tartrate13suppressed
Verapamil ErVerapamil Hcl13suppressed
CephalexinCephalexin12suppressed
Ciprofloxacin HclCiprofloxacin Hcl1211
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Donepezil HclDonepezil Hcl12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
GlipizideGlipizide12suppressed
Hydralazine HclHydralazine Hcl12suppressed
JanuviaSitagliptin Phosphate12suppressed
MethylprednisoloneMethylprednisolone12suppressed
NuplazidPimavanserin Tartrate12suppressed
Paroxetine HclParoxetine Hcl12suppressed
PregabalinPregabalin12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
RamiprilRamipril12suppressed
SpironolactoneSpironolactone12suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine11suppressed
EzetimibeEzetimibe11suppressed
Ibandronate SodiumIbandronate Sodium11suppressed
Metoclopramide HclMetoclopramide Hcl11suppressed
MounjaroTirzepatide11suppressed
TrulicityDulaglutide11suppressed

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 $53.40 · 2 records ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) GORE TAG Conformable Thoracic Endoprosthesis, LifeVest
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