Healthcare provider profile · identity verified

Andrew S. Flewwelling, MD

Internal Medicine · HYANNIS, MA · NPI 1396717468

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 Calcium388121
Levothyroxine SodiumLevothyroxine Sodium24672
LisinoprilLisinopril24275
Amlodipine BesylateAmlodipine Besylate23769
OmeprazoleOmeprazole16449
Metoprolol SuccinateMetoprolol Succinate15149
LorazepamLorazepam14243
Losartan PotassiumLosartan Potassium13145
HydrochlorothiazideHydrochlorothiazide11340
Tamsulosin HclTamsulosin Hcl10731
SimvastatinSimvastatin10231
Tramadol HclTramadol Hcl10024
Metformin HclMetformin Hcl9930
Rosuvastatin CalciumRosuvastatin Calcium9834
Citalopram HbrCitalopram Hydrobromide9222
Albuterol Sulfate HfaAlbuterol Sulfate8823
Trazodone HclTrazodone Hcl8523
AllopurinolAllopurinol7623
Oxycodone HclOxycodone Hcl7217
Pantoprazole SodiumPantoprazole Sodium6721
ClopidogrelClopidogrel Bisulfate6311
Sertraline HclSertraline Hcl6328
GabapentinGabapentin6232
Alendronate SodiumAlendronate Sodium5717
AtenololAtenolol5717
FinasterideFinasteride57suppressed
MirtazapineMirtazapine5020
Fluticasone PropionateFluticasone Propionate4922
Escitalopram OxalateEscitalopram Oxalate4712
Pravastatin SodiumPravastatin Sodium4614
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine44suppressed
Metoprolol TartrateMetoprolol Tartrate44suppressed
AlprazolamAlprazolam4214
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr39suppressed
Propranolol HclPropranolol Hcl39suppressed
OzempicSemaglutide36suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen34suppressed
SynthroidLevothyroxine Sodium34suppressed
Breo ElliptaFluticasone/Vilanterol33suppressed
Sumatriptan SuccinateSumatriptan Succinate33suppressed
AzithromycinAzithromycin3128
ValsartanValsartan31suppressed
ChlorthalidoneChlorthalidone30suppressed
FurosemideFurosemide3012
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen30suppressed
SpironolactoneSpironolactone29suppressed
XareltoRivaroxaban28suppressed
AmoxicillinAmoxicillin2721
Duloxetine HclDuloxetine Hcl27suppressed
Donepezil HclDonepezil Hcl26suppressed
Bupropion XlBupropion Hcl25suppressed
Testosterone CypionateTestosterone Cypionate24suppressed
CelecoxibCelecoxib23suppressed
EzetimibeEzetimibe23suppressed
IbuprofenIbuprofen23suppressed
EliquisApixaban22suppressed
NystatinNystatin22suppressed
Venlafaxine Hcl ErVenlafaxine Hcl22suppressed
Metformin Hcl ErMetformin Hcl21suppressed
OxycontinOxycodone Hcl21suppressed
PrednisonePrednisone2111
Oxybutynin ChlorideOxybutynin Chloride20suppressed
DiazepamDiazepam19suppressed
LovastatinLovastatin19suppressed
MeloxicamMeloxicam19suppressed
Methenamine HippurateMethenamine Hippurate19suppressed
Nifedipine ErNifedipine19suppressed
CarvedilolCarvedilol18suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1812
Potassium ChloridePotassium Chloride18suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
ClonazepamClonazepam16suppressed
FamotidineFamotidine16suppressed
TestosteroneTestosterone16suppressed
ColchicineColchicine15suppressed
Hydroxyzine HclHydroxyzine Hcl15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
Glipizide ErGlipizide14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
MethylprednisoloneMethylprednisolone1414
Paroxetine HclParoxetine Hcl14suppressed
Doxazosin MesylateDoxazosin Mesylate13suppressed
GlipizideGlipizide13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
AcyclovirAcyclovir12suppressed
DigoxinDigoxin12suppressed
FenofibrateFenofibrate12suppressed
GemtesaVibegron12suppressed
LatanoprostLatanoprost12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
Azelastine HclAzelastine Hcl11suppressed
Buspirone HclBuspirone Hcl11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
Ezetimibe-SimvastatinEzetimibe/Simvastatin11suppressed
LevetiracetamLevetiracetam11suppressed

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