Healthcare provider profile · identity verified

Mary Ellen Davis

Nurse Practitioner · LEWISTON, ME · NPI 1215917919

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
Amlodipine BesylateAmlodipine Besylate32998
Atorvastatin CalciumAtorvastatin Calcium28182
Rosuvastatin CalciumRosuvastatin Calcium26479
Levothyroxine SodiumLevothyroxine Sodium25275
Losartan PotassiumLosartan Potassium23777
OmeprazoleOmeprazole23482
LisinoprilLisinopril21872
Metoprolol SuccinateMetoprolol Succinate19054
Potassium ChloridePotassium Chloride16246
Sertraline HclSertraline Hcl15151
FurosemideFurosemide13350
GabapentinGabapentin11236
Pravastatin SodiumPravastatin Sodium11141
Pantoprazole SodiumPantoprazole Sodium10538
Olmesartan MedoxomilOlmesartan Medoxomil10028
Duloxetine HclDuloxetine Hcl9921
FamotidineFamotidine9834
Metoprolol TartrateMetoprolol Tartrate9630
HydrochlorothiazideHydrochlorothiazide9136
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen9119
EzetimibeEzetimibe8625
Albuterol Sulfate HfaAlbuterol Sulfate8546
SimvastatinSimvastatin8324
Bupropion XlBupropion Hcl8223
Trazodone HclTrazodone Hcl7924
Metformin HclMetformin Hcl7826
Fluticasone PropionateFluticasone Propionate6522
PrednisonePrednisone6150
Citalopram HbrCitalopram Hydrobromide6020
Metformin Hcl ErMetformin Hcl6021
OzempicSemaglutide5415
Tamsulosin HclTamsulosin Hcl5216
Venlafaxine Hcl ErVenlafaxine Hcl5215
CarvedilolCarvedilol4816
Glipizide ErGlipizide4716
EliquisApixaban4415
Fluoxetine HclFluoxetine Hcl43suppressed
Solifenacin SuccinateSolifenacin Succinate4217
Cyclobenzaprine HclCyclobenzaprine Hcl4014
Tramadol HclTramadol Hcl3816
ClonazepamClonazepam37suppressed
Escitalopram OxalateEscitalopram Oxalate3714
Alendronate SodiumAlendronate Sodium3612
Diltiazem 24hr Er (Cd)Diltiazem Hcl35suppressed
Ropinirole HclRopinirole Hcl35suppressed
XareltoRivaroxaban35suppressed
Amitriptyline HclAmitriptyline Hcl3411
Paroxetine HclParoxetine Hcl3411
Triamcinolone AcetonideTriamcinolone Acetonide3429
Doxycycline HyclateDoxycycline Hyclate3328
CelecoxibCelecoxib3216
Montelukast SodiumMontelukast Sodium3212
AllopurinolAllopurinol3011
PregabalinPregabalin3011
GlipizideGlipizide28suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide26suppressed
JardianceEmpagliflozin25suppressed
Oxycodone HclOxycodone Hcl25suppressed
ClopidogrelClopidogrel Bisulfate24suppressed
AlprazolamAlprazolam23suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium23suppressed
Memantine HclMemantine Hcl23suppressed
AtenololAtenolol22suppressed
Hydralazine HclHydralazine Hcl22suppressed
Hydroxyzine HclHydroxyzine Hcl2213
MirtazapineMirtazapine2211
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide22suppressed
EstradiolEstradiol2112
FinasterideFinasteride21suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2020
Breo ElliptaFluticasone/Vilanterol20suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide20suppressed
MyrbetriqMirabegron20suppressed
Oxybutynin Chloride ErOxybutynin Chloride20suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2019
BumetanideBumetanide19suppressed
Bupropion Hcl SrBupropion Hcl19suppressed
Tizanidine HclTizanidine Hcl1914
AmoxicillinAmoxicillin18suppressed
Buspirone HclBuspirone Hcl18suppressed
LorazepamLorazepam18suppressed
MeloxicamMeloxicam18suppressed
NystatinNystatin1813
RisperidoneRisperidone18suppressed
SpironolactoneSpironolactone18suppressed
Zolpidem TartrateZolpidem Tartrate18suppressed
Diclofenac SodiumDiclofenac Sodium17suppressed
FenofibrateFenofibrate,micronized17suppressed
Ondansetron HclOndansetron Hcl1614
ValsartanValsartan16suppressed
Ipratropium BromideIpratropium Bromide15suppressed
JanuviaSitagliptin Phosphate15suppressed
Meclizine HclMeclizine Hcl15suppressed
ValacyclovirValacyclovir Hcl15suppressed
Ammonium LactateAmmonium Lactate1411
CephalexinCephalexin1411
ChlorthalidoneChlorthalidone14suppressed
FenofibrateFenofibrate14suppressed
RybelsusSemaglutide14suppressed
WegovySemaglutide14suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
ClotrimazoleClotrimazole13suppressed
Donepezil HclDonepezil Hcl13suppressed
EszopicloneEszopiclone13suppressed
FluconazoleFluconazole13suppressed
CarbamazepineCarbamazepine12suppressed
Zolpidem Tartrate ErZolpidem Tartrate12suppressed
ArexvyRsvpref3 Antigen/As01e/Pf1111
BaclofenBaclofen11suppressed
DiazepamDiazepam11suppressed
IbuprofenIbuprofen11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
PaxlovidNirmatrelvir/Ritonavir1111
TopiramateTopiramate11suppressed

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