Healthcare provider profile · identity verified

John J Nemecek, MD

General Practice · HOUSTON, TX · NPI 1629150487

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
BiktarvyBictegrav/Emtricit/Tenofov Ala79490
Atorvastatin CalciumAtorvastatin Calcium33978
TivicayDolutegravir Sodium29734
DescovyEmtricitabine/Tenofov Alafenam23127
GenvoyaElviteg/Cob/Emtri/Tenof Alafen17015
LisinoprilLisinopril15437
SymtuzaDarunavir/Cob/Emtri/Tenof Alaf12615
PrezcobixDarunavir/Cobicistat11917
Losartan PotassiumLosartan Potassium10724
Amlodipine BesylateAmlodipine Besylate10624
JulucaDolutegravir/Rilpivirine92suppressed
TriumeqAbacavir/Dolutegravir/Lamivudi8811
HydrochlorothiazideHydrochlorothiazide8521
RitonavirRitonavir82suppressed
Metformin HclMetformin Hcl7919
ValacyclovirValacyclovir Hcl7713
GabapentinGabapentin68suppressed
Tamsulosin HclTamsulosin Hcl6113
IsentressRaltegravir Potassium51suppressed
Zolpidem TartrateZolpidem Tartrate49suppressed
Escitalopram OxalateEscitalopram Oxalate46suppressed
Levothyroxine SodiumLevothyroxine Sodium4611
Pantoprazole SodiumPantoprazole Sodium4612
EtravirineEtravirine43suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim4312
Trazodone HclTrazodone Hcl43suppressed
MeloxicamMeloxicam3911
DarunavirDarunavir38suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide37suppressed
Pravastatin SodiumPravastatin Sodium37suppressed
CarvedilolCarvedilol34suppressed
Emtricitabine-Tenofovir DisopEmtricitabine/Tenofovir (Tdf)34suppressed
PregabalinPregabalin34suppressed
Albuterol Sulfate HfaAlbuterol Sulfate33suppressed
Rosuvastatin CalciumRosuvastatin Calcium33suppressed
PrezistaDarunavir32suppressed
ClopidogrelClopidogrel Bisulfate30suppressed
Montelukast SodiumMontelukast Sodium30suppressed
Testosterone CypionateTestosterone Cypionate28suppressed
FamotidineFamotidine26suppressed
OzempicSemaglutide25suppressed
Metoprolol SuccinateMetoprolol Succinate24suppressed
Enalapril MaleateEnalapril Maleate22suppressed
Metoprolol TartrateMetoprolol Tartrate21suppressed
Nifedipine ErNifedipine21suppressed
ValsartanValsartan21suppressed
JardianceEmpagliflozin20suppressed
LamivudineLamivudine19suppressed
Sertraline HclSertraline Hcl19suppressed
AbacavirAbacavir Sulfate18suppressed
FamciclovirFamciclovir18suppressed
FurosemideFurosemide18suppressed
VascepaIcosapent Ethyl18suppressed
EliquisApixaban17suppressed
Potassium ChloridePotassium Chloride17suppressed
Terbinafine HclTerbinafine Hcl17suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
Propranolol HclPropranolol Hcl16suppressed
LevetiracetamLevetiracetam15suppressed
Varenicline TartrateVarenicline Tartrate15suppressed
EntecavirEntecavir14suppressed
OmeprazoleOmeprazole14suppressed
DapsoneDapsone13suppressed
OdefseyEmtricitab/Rilpiviri/Tenof Ala13suppressed
Oxybutynin ChlorideOxybutynin Chloride13suppressed
Alendronate SodiumAlendronate Sodium12suppressed
Doxycycline HyclateDoxycycline Hyclate12suppressed
NaproxenNaproxen12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
Alfuzosin Hcl ErAlfuzosin Hcl11suppressed
Duloxetine HclDuloxetine Hcl11suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium11suppressed
RukobiaFostemsavir Tromethamine11suppressed
TestosteroneTestosterone11suppressed

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