Healthcare provider profile · identity verified

Mark Patrick St John, FNP

Nurse Practitioner · BALDWINSVILLE, NY · NPI 1295999266

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
Sertraline HclSertraline Hcl38246
Levothyroxine SodiumLevothyroxine Sodium26348
Amlodipine BesylateAmlodipine Besylate24630
Atorvastatin CalciumAtorvastatin Calcium22259
GabapentinGabapentin22242
FurosemideFurosemide20041
EliquisApixaban18942
Potassium ChloridePotassium Chloride17030
BaclofenBaclofen166suppressed
Quetiapine FumarateQuetiapine Fumarate15715
LisinoprilLisinopril15126
Metoprolol SuccinateMetoprolol Succinate14441
Metoprolol TartrateMetoprolol Tartrate12026
OmeprazoleOmeprazole11729
FamotidineFamotidine11024
Oxycodone HclOxycodone Hcl9742
MirtazapineMirtazapine9516
LorazepamLorazepam9435
Pantoprazole SodiumPantoprazole Sodium9226
Methenamine HippurateMethenamine Hippurate7514
Carbidopa-LevodopaCarbidopa/Levodopa68suppressed
Divalproex SodiumDivalproex Sodium67suppressed
SpironolactoneSpironolactone6618
FentanylFentanyl6516
FinasterideFinasteride5912
Morphine SulfateMorphine Sulfate5936
RytaryCarbidopa/Levodopa51suppressed
LatanoprostLatanoprost5014
Tamsulosin HclTamsulosin Hcl5016
Donepezil HclDonepezil Hcl48suppressed
Duloxetine HclDuloxetine Hcl48suppressed
Rosuvastatin CalciumRosuvastatin Calcium4714
CephalexinCephalexin4421
Escitalopram OxalateEscitalopram Oxalate4411
HydrochlorothiazideHydrochlorothiazide43suppressed
PrednisonePrednisone4315
AllopurinolAllopurinol42suppressed
Enoxaparin SodiumEnoxaparin Sodium38suppressed
AlprazolamAlprazolam3711
Paroxetine HclParoxetine Hcl36suppressed
Citalopram HbrCitalopram Hydrobromide35suppressed
Fluoxetine HclFluoxetine Hcl35suppressed
ValsartanValsartan34suppressed
Fluticasone PropionateFluticasone Propionate3212
Memantine HclMemantine Hcl32suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog30suppressed
Losartan PotassiumLosartan Potassium29suppressed
LevetiracetamLevetiracetam28suppressed
Buspirone HclBuspirone Hcl27suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen27suppressed
Warfarin SodiumWarfarin Sodium27suppressed
LumiganBimatoprost26suppressed
RisperidoneRisperidone26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl26suppressed
Albuterol SulfateAlbuterol Sulfate25suppressed
Albuterol Sulfate HfaAlbuterol Sulfate2521
ClopidogrelClopidogrel Bisulfate2516
ErythromycinErythromycin Base25suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium25suppressed
Amiodarone HclAmiodarone Hcl24suppressed
Trazodone HclTrazodone Hcl24suppressed
XareltoRivaroxaban24suppressed
Incruse ElliptaUmeclidinium Bromide23suppressed
MultaqDronedarone Hcl23suppressed
NuedextaDextromethorphan Hbr/Quinidine23suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide21suppressed
SimvastatinSimvastatin21suppressed
Atropine SulfateAtropine Sulfate2019
SucralfateSucralfate20suppressed
TorsemideTorsemide20suppressed
CarvedilolCarvedilol19suppressed
Clobetasol PropionateClobetasol Propionate19suppressed
DesonideDesonide18suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate18suppressed
IrbesartanIrbesartan18suppressed
JanuviaSitagliptin Phosphate18suppressed
Midodrine HclMidodrine Hcl18suppressed
PregabalinPregabalin18suppressed
Ciprofloxacin HclCiprofloxacin Hcl16suppressed
Rasagiline MesylateRasagiline Mesylate16suppressed
FenofibrateFenofibrate Nanocrystallized15suppressed
Hydralazine HclHydralazine Hcl15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
Propranolol HclPropranolol Hcl15suppressed
Tramadol HclTramadol Hcl15suppressed
Metformin HclMetformin Hcl14suppressed
Pyridostigmine BromidePyridostigmine Bromide13suppressed
Risedronate SodiumRisedronate Sodium13suppressed
RivastigmineRivastigmine13suppressed
Ropinirole HclRopinirole Hcl13suppressed
Alendronate SodiumAlendronate Sodium12suppressed
EplerenoneEplerenone12suppressed
Galantamine HbrGalantamine Hbr12suppressed
Tolterodine Tartrate ErTolterodine Tartrate12suppressed
Tramadol Hcl ErTramadol Hcl12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav11suppressed
BreynaBudesonide/Formoterol Fumarate11suppressed
BudesonideBudesonide11suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa11suppressed
EzetimibeEzetimibe11suppressed
Galantamine ErGalantamine Hbr11suppressed
GlimepirideGlimepiride11suppressed
TelmisartanTelmisartan11suppressed
UrsodiolUrsodiol11suppressed

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