Healthcare provider profile · identity verified

Tad P Lanagan, DO

Family Practice · PENACOOK, NH · NPI 1386962819

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 Calcium34891
LisinoprilLisinopril28070
Amlodipine BesylateAmlodipine Besylate18145
GabapentinGabapentin17538
OmeprazoleOmeprazole15937
Levothyroxine SodiumLevothyroxine Sodium15236
Albuterol Sulfate HfaAlbuterol Sulfate14438
Losartan PotassiumLosartan Potassium13027
Metformin HclMetformin Hcl12631
Sertraline HclSertraline Hcl11925
Pantoprazole SodiumPantoprazole Sodium10023
Tamsulosin HclTamsulosin Hcl8623
Metoprolol SuccinateMetoprolol Succinate8319
ClonazepamClonazepam79suppressed
SimvastatinSimvastatin7621
LorazepamLorazepam7515
Rosuvastatin CalciumRosuvastatin Calcium7321
HydrochlorothiazideHydrochlorothiazide7123
Cyclobenzaprine HclCyclobenzaprine Hcl64suppressed
FamotidineFamotidine6414
Zolpidem TartrateZolpidem Tartrate64suppressed
Pravastatin SodiumPravastatin Sodium6115
Duloxetine HclDuloxetine Hcl6012
Metoprolol TartrateMetoprolol Tartrate6023
Trazodone HclTrazodone Hcl5918
Fluticasone PropionateFluticasone Propionate5419
CarvedilolCarvedilol53suppressed
Bupropion XlBupropion Hcl5111
Oxycodone HclOxycodone Hcl47suppressed
Metformin Hcl ErMetformin Hcl4613
Bupropion Hcl SrBupropion Hcl44suppressed
JardianceEmpagliflozin4311
EliquisApixaban42suppressed
AtenololAtenolol4013
ClopidogrelClopidogrel Bisulfate40suppressed
Citalopram HbrCitalopram Hydrobromide39suppressed
Montelukast SodiumMontelukast Sodium3813
SpironolactoneSpironolactone38suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen37suppressed
OzempicSemaglutide37suppressed
TopiramateTopiramate36suppressed
GlipizideGlipizide33suppressed
Potassium ChloridePotassium Chloride33suppressed
Fluoxetine HclFluoxetine Hcl31suppressed
Donepezil HclDonepezil Hcl29suppressed
Humulin R U-500 KwikpenInsulin Regular, Human28suppressed
FurosemideFurosemide2713
Escitalopram OxalateEscitalopram Oxalate26suppressed
ValacyclovirValacyclovir Hcl26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl26suppressed
Ondansetron HclOndansetron Hcl25suppressed
Quetiapine FumarateQuetiapine Fumarate25suppressed
Prazosin HclPrazosin Hcl24suppressed
AlprazolamAlprazolam23suppressed
Incruse ElliptaUmeclidinium Bromide23suppressed
KetoconazoleKetoconazole22suppressed
MounjaroTirzepatide22suppressed
Warfarin SodiumWarfarin Sodium22suppressed
MirtazapineMirtazapine21suppressed
TrulicityDulaglutide21suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl20suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter20suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen19suppressed
Tramadol HclTramadol Hcl19suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate18suppressed
Diclofenac SodiumDiclofenac Sodium18suppressed
PrednisonePrednisone17suppressed
RybelsusSemaglutide17suppressed
SynthroidLevothyroxine Sodium17suppressed
Divalproex SodiumDivalproex Sodium16suppressed
DuleraMometasone/Formoterol16suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
JantovenWarfarin Sodium15suppressed
PregabalinPregabalin15suppressed
SymbicortBudesonide/Formoterol Fumarate15suppressed
LansoprazoleLansoprazole14suppressed
MeloxicamMeloxicam14suppressed
Morphine Sulfate ErMorphine Sulfate14suppressed
Ambien CrZolpidem Tartrate13suppressed
AzithromycinAzithromycin13suppressed
Buspirone HclBuspirone Hcl13suppressed
Carbidopa-LevodopaCarbidopa/Levodopa13suppressed
Hydroxyzine PamoateHydroxyzine Pamoate13suppressed
Ropinirole HclRopinirole Hcl13suppressed
Alendronate SodiumAlendronate Sodium12suppressed
BaclofenBaclofen12suppressed
ClonidineClonidine12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
LovastatinLovastatin12suppressed
AllopurinolAllopurinol11suppressed
ChlorthalidoneChlorthalidone11suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium11suppressed
IbuprofenIbuprofen11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Lurasidone HclLurasidone Hcl11suppressed
OlanzapineOlanzapine11suppressed
Quetiapine Fumarate ErQuetiapine Fumarate11suppressed
Ropinirole ErRopinirole Hcl11suppressed
Xtampza ErOxycodone Myristate11suppressed

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