Healthcare provider profile · identity verified

Alexander John Mazzaferro, M.D.

Family Practice · SAINT LOUIS, MO · NPI 1982017786

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 Calcium700205
LisinoprilLisinopril25177
Levothyroxine SodiumLevothyroxine Sodium23861
Amlodipine BesylateAmlodipine Besylate23764
Metformin HclMetformin Hcl19766
OmeprazoleOmeprazole19652
Losartan PotassiumLosartan Potassium16146
HydrochlorothiazideHydrochlorothiazide13942
Rosuvastatin CalciumRosuvastatin Calcium12939
Escitalopram OxalateEscitalopram Oxalate12330
Pantoprazole SodiumPantoprazole Sodium11332
Metoprolol SuccinateMetoprolol Succinate10734
SimvastatinSimvastatin10028
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide9433
Tamsulosin HclTamsulosin Hcl9326
Sertraline HclSertraline Hcl9223
Metoprolol TartrateMetoprolol Tartrate7621
Zolpidem TartrateZolpidem Tartrate7514
FurosemideFurosemide7423
GabapentinGabapentin7220
Albuterol Sulfate HfaAlbuterol Sulfate7025
OzempicSemaglutide7015
AllopurinolAllopurinol6920
Pravastatin SodiumPravastatin Sodium6924
MeloxicamMeloxicam6613
GlipizideGlipizide6521
JardianceEmpagliflozin6420
CarvedilolCarvedilol6319
EliquisApixaban6117
Trazodone HclTrazodone Hcl6119
ClopidogrelClopidogrel Bisulfate5916
PregabalinPregabalin5712
Alendronate SodiumAlendronate Sodium5618
Amitriptyline HclAmitriptyline Hcl5216
Bupropion XlBupropion Hcl5214
Glipizide ErGlipizide5216
Tramadol HclTramadol Hcl5119
Metformin Hcl ErMetformin Hcl5013
SpironolactoneSpironolactone5017
Fluticasone PropionateFluticasone Propionate4715
Trelegy ElliptaFluticasone/Umeclidin/Vilanter44suppressed
FamotidineFamotidine43suppressed
Donepezil HclDonepezil Hcl4212
Memantine HclMemantine Hcl4011
TorsemideTorsemide4014
AtenololAtenolol3911
Buspirone HclBuspirone Hcl38suppressed
FinasterideFinasteride38suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl3712
EzetimibeEzetimibe3713
FenofibrateFenofibrate37suppressed
Sumatriptan SuccinateSumatriptan Succinate37suppressed
Citalopram HbrCitalopram Hydrobromide36suppressed
Duloxetine HclDuloxetine Hcl36suppressed
Vitamin D2Ergocalciferol (Vitamin D2)35suppressed
AlprazolamAlprazolam34suppressed
AzithromycinAzithromycin3428
Montelukast SodiumMontelukast Sodium34suppressed
Dicyclomine HclDicyclomine Hcl33suppressed
Potassium ChloridePotassium Chloride32suppressed
Hydralazine HclHydralazine Hcl30suppressed
MethocarbamolMethocarbamol30suppressed
XareltoRivaroxaban30suppressed
SynthroidLevothyroxine Sodium29suppressed
Hydroxyzine HclHydroxyzine Hcl27suppressed
LorazepamLorazepam2712
MirtazapineMirtazapine26suppressed
LovastatinLovastatin25suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2520
Olmesartan MedoxomilOlmesartan Medoxomil24suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid24suppressed
GlimepirideGlimepiride23suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog23suppressed
Ropinirole HclRopinirole Hcl23suppressed
Spiriva RespimatTiotropium Bromide22suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide21suppressed
PrednisonePrednisone2015
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine19suppressed
BaclofenBaclofen18suppressed
Paroxetine HclParoxetine Hcl18suppressed
Propranolol HclPropranolol Hcl18suppressed
DiazepamDiazepam17suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
MounjaroTirzepatide17suppressed
AripiprazoleAripiprazole16suppressed
Diclofenac SodiumDiclofenac Sodium16suppressed
TopiramateTopiramate16suppressed
EntrestoSacubitril/Valsartan15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
ArexvyRsvpref3 Antigen/As01e/Pf1414
Breo ElliptaFluticasone/Vilanterol14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl14suppressed
Enalapril MaleateEnalapril Maleate14suppressed
Amiodarone HclAmiodarone Hcl13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
Benazepril HclBenazepril Hcl12suppressed
ClonazepamClonazepam12suppressed
ColchicineColchicine12suppressed
IbuprofenIbuprofen12suppressed
Pioglitazone HclPioglitazone Hcl12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
TrulicityDulaglutide12suppressed
Advair HfaFluticasone Propion/Salmeterol11suppressed
Combivent RespimatIpratropium/Albuterol Sulfate11suppressed
LoperamideLoperamide Hcl11suppressed
RamiprilRamipril11suppressed
Terazosin HclTerazosin Hcl11suppressed
Tizanidine HclTizanidine 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
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