Healthcare provider profile · identity verified

Marjorie Dierdorf

Nurse Practitioner · YORK, PA · NPI 1144892589

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 Calcium26583
LisinoprilLisinopril16050
Levothyroxine SodiumLevothyroxine Sodium15250
Amlodipine BesylateAmlodipine Besylate14643
Losartan PotassiumLosartan Potassium11934
Duloxetine HclDuloxetine Hcl10932
Pantoprazole SodiumPantoprazole Sodium10038
FurosemideFurosemide9333
PrednisonePrednisone9381
Albuterol Sulfate HfaAlbuterol Sulfate9042
OmeprazoleOmeprazole9035
Quetiapine FumarateQuetiapine Fumarate8617
GabapentinGabapentin8530
EliquisApixaban8424
HydrochlorothiazideHydrochlorothiazide7834
Trelegy ElliptaFluticasone/Umeclidin/Vilanter7318
Metoprolol SuccinateMetoprolol Succinate7222
Alendronate SodiumAlendronate Sodium7119
Escitalopram OxalateEscitalopram Oxalate6918
SimvastatinSimvastatin6424
JardianceEmpagliflozin5514
Metoprolol TartrateMetoprolol Tartrate5518
ClopidogrelClopidogrel Bisulfate5313
Pravastatin SodiumPravastatin Sodium5214
AtenololAtenolol4914
CarvedilolCarvedilol4715
OzempicSemaglutide4711
Rosuvastatin CalciumRosuvastatin Calcium4615
Metformin HclMetformin Hcl4519
MounjaroTirzepatide42suppressed
ClonazepamClonazepam40suppressed
Potassium ChloridePotassium Chloride4017
Doxycycline HyclateDoxycycline Hyclate3931
FamotidineFamotidine39suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3914
AzithromycinAzithromycin3636
Trazodone HclTrazodone Hcl3613
Glipizide ErGlipizide3513
Montelukast SodiumMontelukast Sodium3514
Hydralazine HclHydralazine Hcl3313
Tamsulosin HclTamsulosin Hcl3311
Isosorbide Mononitrate ErIsosorbide Mononitrate31suppressed
MeloxicamMeloxicam3118
LorazepamLorazepam3013
Breo ElliptaFluticasone/Vilanterol29suppressed
MirtazapineMirtazapine29suppressed
Sertraline HclSertraline Hcl2914
Tramadol HclTramadol Hcl29suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog28suppressed
Fluoxetine HclFluoxetine Hcl25suppressed
Fluticasone PropionateFluticasone Propionate2513
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen25suppressed
Citalopram HbrCitalopram Hydrobromide22suppressed
Zolpidem TartrateZolpidem Tartrate22suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2121
EzetimibeEzetimibe2011
Buspirone HclBuspirone Hcl19suppressed
CephalexinCephalexin1917
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide19suppressed
Metformin Hcl ErMetformin Hcl19suppressed
Ropinirole HclRopinirole Hcl19suppressed
Advair HfaFluticasone Propion/Salmeterol18suppressed
AllopurinolAllopurinol18suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol18suppressed
Bupropion XlBupropion Hcl17suppressed
LamotrigineLamotrigine17suppressed
Pioglitazone HclPioglitazone Hcl17suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic17suppressed
DiazepamDiazepam16suppressed
FinasterideFinasteride16suppressed
LovastatinLovastatin16suppressed
Tizanidine HclTizanidine Hcl16suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
GlimepirideGlimepiride15suppressed
Nifedipine ErNifedipine15suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1515
SynthroidLevothyroxine Sodium15suppressed
TrulicityDulaglutide15suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
BrilintaTicagrelor13suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium13suppressed
BaclofenBaclofen12suppressed
Benazepril HclBenazepril Hcl12suppressed
FarxigaDapagliflozin Propanediol12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
LansoprazoleLansoprazole12suppressed
Paroxetine HclParoxetine Hcl12suppressed
RizatriptanRizatriptan Benzoate12suppressed
CelecoxibCelecoxib11suppressed
MupirocinMupirocin11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1111
Wixela InhubFluticasone Propion/Salmeterol11suppressed

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