Healthcare provider profile · identity verified

David V Ferris, DO

Family Practice · LITTLETON, NH · NPI 1053389817

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 Calcium25685
LisinoprilLisinopril18562
Amlodipine BesylateAmlodipine Besylate15149
OmeprazoleOmeprazole15154
Levothyroxine SodiumLevothyroxine Sodium14339
Losartan PotassiumLosartan Potassium10430
Metformin HclMetformin Hcl10433
Trazodone HclTrazodone Hcl10122
GabapentinGabapentin9931
Tamsulosin HclTamsulosin Hcl8826
FurosemideFurosemide8226
Metoprolol SuccinateMetoprolol Succinate7829
Pantoprazole SodiumPantoprazole Sodium7221
Albuterol Sulfate HfaAlbuterol Sulfate6828
HydrochlorothiazideHydrochlorothiazide6723
Oxycodone HclOxycodone Hcl6712
EliquisApixaban6621
Metoprolol TartrateMetoprolol Tartrate6217
SimvastatinSimvastatin6223
Rosuvastatin CalciumRosuvastatin Calcium6019
Sertraline HclSertraline Hcl5915
PrednisonePrednisone5431
Fluticasone PropionateFluticasone Propionate5132
ClopidogrelClopidogrel Bisulfate4813
Cyclobenzaprine HclCyclobenzaprine Hcl4619
Pravastatin SodiumPravastatin Sodium4113
GlipizideGlipizide40suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen39suppressed
Paroxetine HclParoxetine Hcl39suppressed
SpironolactoneSpironolactone3913
Potassium ChloridePotassium Chloride3812
SymbicortBudesonide/Formoterol Fumarate38suppressed
AllopurinolAllopurinol37suppressed
Tramadol HclTramadol Hcl3713
Glipizide ErGlipizide36suppressed
Citalopram HbrCitalopram Hydrobromide34suppressed
AlprazolamAlprazolam33suppressed
AtenololAtenolol3112
Hydroxyzine HclHydroxyzine Hcl2911
AmoxicillinAmoxicillin2822
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide28suppressed
Bupropion XlBupropion Hcl26suppressed
Duloxetine HclDuloxetine Hcl26suppressed
Alendronate SodiumAlendronate Sodium25suppressed
CarvedilolCarvedilol25suppressed
Bupropion Hcl SrBupropion Hcl24suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium23suppressed
Fluoxetine HclFluoxetine Hcl23suppressed
CelecoxibCelecoxib22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2215
IbuprofenIbuprofen2111
MeloxicamMeloxicam21suppressed
Doxycycline HyclateDoxycycline Hyclate20suppressed
Warfarin SodiumWarfarin Sodium20suppressed
CephalexinCephalexin1913
FamotidineFamotidine19suppressed
Ventolin HfaAlbuterol Sulfate19suppressed
Diltiazem 24hr ErDiltiazem Hcl17suppressed
FinasterideFinasteride17suppressed
Quetiapine FumarateQuetiapine Fumarate17suppressed
AzithromycinAzithromycin1615
ClonazepamClonazepam16suppressed
EzetimibeEzetimibe16suppressed
NitroglycerinNitroglycerin16suppressed
ChlorthalidoneChlorthalidone15suppressed
Clonidine HclClonidine Hcl15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
JanuviaSitagliptin Phosphate15suppressed
LorazepamLorazepam15suppressed
PregabalinPregabalin15suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
Oxybutynin ChlorideOxybutynin Chloride14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Venlafaxine Hcl ErVenlafaxine Hcl14suppressed
CarisoprodolCarisoprodol13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1313
LidocaineLidocaine13suppressed
TorsemideTorsemide13suppressed
DiazepamDiazepam12suppressed
FentanylFentanyl12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
SynthroidLevothyroxine Sodium12suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
Diltiazem HclDiltiazem Hcl11suppressed
MirtazapineMirtazapine11suppressed
SucralfateSucralfate11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed
TrulicityDulaglutide11suppressed
ValsartanValsartan11suppressed

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