Healthcare provider profile · identity verified

Levon Tchakmakjian, M.D.

Internal Medicine · FAIRFIELD, CA · NPI 1790744795

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 Calcium36546
Amlodipine BesylateAmlodipine Besylate26737
Levothyroxine SodiumLevothyroxine Sodium20321
Losartan PotassiumLosartan Potassium18125
GabapentinGabapentin15923
Metformin HclMetformin Hcl14621
Rosuvastatin CalciumRosuvastatin Calcium14116
LisinoprilLisinopril13314
Tamsulosin HclTamsulosin Hcl13320
OmeprazoleOmeprazole11219
Trazodone HclTrazodone Hcl10918
Pantoprazole SodiumPantoprazole Sodium10218
EzetimibeEzetimibe9816
Donepezil HclDonepezil Hcl76suppressed
Metoprolol TartrateMetoprolol Tartrate73suppressed
Venlafaxine Hcl ErVenlafaxine Hcl7211
Metoprolol SuccinateMetoprolol Succinate70suppressed
HydrochlorothiazideHydrochlorothiazide6913
Duloxetine HclDuloxetine Hcl6813
Alendronate SodiumAlendronate Sodium6511
EliquisApixaban65suppressed
ClopidogrelClopidogrel Bisulfate62suppressed
JardianceEmpagliflozin60suppressed
FinasterideFinasteride59suppressed
Glipizide ErGlipizide57suppressed
Quetiapine FumarateQuetiapine Fumarate57suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn5511
JanuviaSitagliptin Phosphate51suppressed
Sertraline HclSertraline Hcl49suppressed
MirtazapineMirtazapine46suppressed
Triamcinolone AcetonideTriamcinolone Acetonide46suppressed
CelecoxibCelecoxib43suppressed
FurosemideFurosemide43suppressed
FamotidineFamotidine42suppressed
Benazepril HclBenazepril Hcl40suppressed
Metformin Hcl ErMetformin Hcl38suppressed
Hydralazine HclHydralazine Hcl36suppressed
Citalopram HbrCitalopram Hydrobromide35suppressed
Escitalopram OxalateEscitalopram Oxalate34suppressed
Potassium ChloridePotassium Chloride34suppressed
LevetiracetamLevetiracetam33suppressed
Fluticasone PropionateFluticasone Propionate3211
LansoprazoleLansoprazole31suppressed
MeloxicamMeloxicam31suppressed
Bupropion XlBupropion Hcl30suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl30suppressed
SimvastatinSimvastatin30suppressed
CarvedilolCarvedilol29suppressed
Carbidopa-LevodopaCarbidopa/Levodopa28suppressed
GlipizideGlipizide26suppressed
OzempicSemaglutide26suppressed
PregabalinPregabalin26suppressed
Trueplus Pen NeedlePen Needle, Diabetic25suppressed
Bupropion HclBupropion Hcl24suppressed
KetoconazoleKetoconazole24suppressed
Albuterol Sulfate HfaAlbuterol Sulfate21suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate21suppressed
Doxazosin MesylateDoxazosin Mesylate21suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate21suppressed
NystatinNystatin21suppressed
BumetanideBumetanide19suppressed
FenofibrateFenofibrate Nanocrystallized19suppressed
Mirabegron ErMirabegron19suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl19suppressed
CiclopiroxCiclopirox Olamine18suppressed
EntrestoSacubitril/Valsartan18suppressed
InvokanaCanagliflozin18suppressed
Montelukast SodiumMontelukast Sodium18suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters18suppressed
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat16suppressed
LatanoprostLatanoprost16suppressed
MyrbetriqMirabegron16suppressed
Tiotropium BromideTiotropium Bromide16suppressed
Metformin Er OsmoticMetformin Hcl15suppressed
Midodrine HclMidodrine Hcl15suppressed
ScopolamineScopolamine15suppressed
Ziprasidone HclZiprasidone Hcl15suppressed
CyclosporineCyclosporine14suppressed
Divalproex SodiumDivalproex Sodium14suppressed
Hydroxyzine HclHydroxyzine Hcl14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
Memantine HclMemantine Hcl14suppressed
Ranolazine ErRanolazine14suppressed
Ropinirole HclRopinirole Hcl14suppressed
TradjentaLinagliptin14suppressed
Venlafaxine HclVenlafaxine Hcl14suppressed
Brimonidine TartrateBrimonidine Tartrate13suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa13suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
EntacaponeEntacapone13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
Meclizine HclMeclizine Hcl13suppressed
MethimazoleMethimazole13suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst13suppressed
Tamoxifen CitrateTamoxifen Citrate13suppressed
TopiramateTopiramate13suppressed
Bisoprolol FumarateBisoprolol Fumarate12suppressed
DigoxinDigoxin12suppressed
IbuprofenIbuprofen12suppressed
LovastatinLovastatin12suppressed
PrimidonePrimidone12suppressed
RybelsusSemaglutide12suppressed
SotalolSotalol Hcl12suppressed
Testosterone CypionateTestosterone Cypionate12suppressed
ValacyclovirValacyclovir Hcl12suppressed

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