Healthcare provider profile · identity verified

Shant Tomassian, MD

Allopathic & Osteopathic Physicians|Family Medicine · GLENDORA, CA · NPI 1215594692

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 Shant Tomassian, MD received $76.62 in general payments during 2025 across 4 reported records.

Amgen Inc. accounted for 50.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 53 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$76.62

4 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 $38.3150.0%22025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $22.2029.0%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $16.1121.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$76.624

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
REPATHA
Normalized: repatha
Biological Amgen Inc. $38.31 2 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.20 1 2025
Source payment records
  • 2025-11-03 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $22.20 · Open Payments source
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C. $16.11 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $16.11 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
ELIQUIS
eliquis
2025 Eliquis 2024 53
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
53 suppressed by CMS

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 Calcium41932
Losartan PotassiumLosartan Potassium36119
Levothyroxine SodiumLevothyroxine Sodium28222
GabapentinGabapentin26812
Amlodipine BesylateAmlodipine Besylate25115
Potassium ChloridePotassium Chloride23913
FurosemideFurosemide23613
Metoprolol TartrateMetoprolol Tartrate165suppressed
CarvedilolCarvedilol163suppressed
GlipizideGlipizide151suppressed
Rosuvastatin CalciumRosuvastatin Calcium146suppressed
MeloxicamMeloxicam12212
HydrochlorothiazideHydrochlorothiazide121suppressed
Hydralazine HclHydralazine Hcl106suppressed
GemtesaVibegron103suppressed
Metoprolol SuccinateMetoprolol Succinate101suppressed
Pantoprazole SodiumPantoprazole Sodium9713
CarbamazepineCarbamazepine92suppressed
ValsartanValsartan91suppressed
JanuviaSitagliptin Phosphate88suppressed
ClopidogrelClopidogrel Bisulfate81suppressed
Tamsulosin HclTamsulosin Hcl75suppressed
LisinoprilLisinopril70suppressed
Metformin HclMetformin Hcl7018
SimvastatinSimvastatin63suppressed
Amiodarone HclAmiodarone Hcl62suppressed
Montelukast SodiumMontelukast Sodium61suppressed
FenofibrateFenofibrate Nanocrystallized56suppressed
LovastatinLovastatin55suppressed
EliquisApixaban53suppressed
EzetimibeEzetimibe53suppressed
LivaloPitavastatin Calcium53suppressed
Nifedipine ErNifedipine53suppressed
OmeprazoleOmeprazole52suppressed
XareltoRivaroxaban50suppressed
AzithromycinAzithromycin4841
FamotidineFamotidine44suppressed
FarxigaDapagliflozin Propanediol43suppressed
CilostazolCilostazol30suppressed
Pravastatin SodiumPravastatin Sodium27suppressed
Meclizine HclMeclizine Hcl26suppressed
TelmisartanTelmisartan26suppressed
Potassium Citrate ErPotassium Citrate25suppressed
Propranolol HclPropranolol Hcl25suppressed
RisperidoneRisperidone25suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc24suppressed
Metformin Hcl ErMetformin Hcl24suppressed
MyrbetriqMirabegron24suppressed
VascepaIcosapent Ethyl24suppressed
JardianceEmpagliflozin23suppressed
Arnuity ElliptaFluticasone Furoate22suppressed
Carbidopa-LevodopaCarbidopa/Levodopa21suppressed
LatanoprostLatanoprost21suppressed
Humulin RInsulin Regular, Human20suppressed
Clonidine HclClonidine Hcl19suppressed
LidocaineLidocaine17suppressed
Albuterol Sulfate HfaAlbuterol Sulfate16suppressed
AtenololAtenolol16suppressed
Calcium AcetateCalcium Acetate16suppressed
Glipizide ErGlipizide16suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog15suppressed
Diclofenac SodiumDiclofenac Sodium15suppressed
Fluticasone PropionateFluticasone Propionate15suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl15suppressed
SucralfateSucralfate14suppressed
Escitalopram OxalateEscitalopram Oxalate13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1313
Felodipine ErFelodipine12suppressed
Memantine HclMemantine Hcl12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Azelastine HclAzelastine Hcl11suppressed
BreynaBudesonide/Formoterol Fumarate11suppressed
Donepezil HclDonepezil Hcl11suppressed
EnuloseLactulose11suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium11suppressed
LevetiracetamLevetiracetam11suppressed
Oxybutynin ChlorideOxybutynin Chloride11suppressed
PregabalinPregabalin11suppressed

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 $76.62 · 4 records Amgen Inc. ELIQUIS, OTEZLA, REPATHA, XIFAXAN 1
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