Healthcare provider profile · identity verified

Marguerite Lamb

Nurse Practitioner · CROMWELL, CT · NPI 1114326261

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 Calcium18948
Levothyroxine SodiumLevothyroxine Sodium8520
Rosuvastatin CalciumRosuvastatin Calcium6217
LisinoprilLisinopril6016
Metformin Hcl ErMetformin Hcl5516
OmeprazoleOmeprazole5315
Metoprolol SuccinateMetoprolol Succinate5212
Amlodipine BesylateAmlodipine Besylate4213
Escitalopram OxalateEscitalopram Oxalate37suppressed
Zolpidem TartrateZolpidem Tartrate37suppressed
OzempicSemaglutide34suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3331
EzetimibeEzetimibe31suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3015
PrednisonePrednisone2827
FurosemideFurosemide27suppressed
Montelukast SodiumMontelukast Sodium27suppressed
Sertraline HclSertraline Hcl26suppressed
Losartan PotassiumLosartan Potassium25suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide25suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2520
AtenololAtenolol24suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide24suppressed
AlprazolamAlprazolam23suppressed
Metoprolol TartrateMetoprolol Tartrate22suppressed
Venlafaxine Hcl ErVenlafaxine Hcl22suppressed
Fluticasone PropionateFluticasone Propionate21suppressed
CarvedilolCarvedilol20suppressed
CelecoxibCelecoxib20suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
Trazodone HclTrazodone Hcl20suppressed
HydrochlorothiazideHydrochlorothiazide18suppressed
Pantoprazole SodiumPantoprazole Sodium18suppressed
GabapentinGabapentin17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1714
Verapamil SrVerapamil Hcl16suppressed
Wixela InhubFluticasone Propion/Salmeterol15suppressed
Bupropion XlBupropion Hcl14suppressed
FamotidineFamotidine14suppressed
Metformin HclMetformin Hcl14suppressed
CephalexinCephalexin1313
EliquisApixaban13suppressed
LevetiracetamLevetiracetam13suppressed
Verapamil ErVerapamil Hcl13suppressed
Doxycycline HyclateDoxycycline Hyclate1211
MirtazapineMirtazapine12suppressed
Olmesartan MedoxomilOlmesartan Medoxomil12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate11suppressed

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