Healthcare provider profile · identity verified

William Robson Greer, M.D.

Internal Medicine · PAOLI, PA · NPI 1598722472

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 Calcium705197
Losartan PotassiumLosartan Potassium401110
Amlodipine BesylateAmlodipine Besylate380103
Rosuvastatin CalciumRosuvastatin Calcium23977
SimvastatinSimvastatin23065
LisinoprilLisinopril21258
Levothyroxine SodiumLevothyroxine Sodium20455
Pantoprazole SodiumPantoprazole Sodium19467
HydrochlorothiazideHydrochlorothiazide18450
Metoprolol SuccinateMetoprolol Succinate16953
Metformin Hcl ErMetformin Hcl15540
Sertraline HclSertraline Hcl14532
Azelastine HclAzelastine Hcl13965
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12231
AllopurinolAllopurinol11432
PrednisonePrednisone11335
EliquisApixaban10625
LorazepamLorazepam10326
OmeprazoleOmeprazole10330
FurosemideFurosemide9633
JardianceEmpagliflozin9625
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide9225
Escitalopram OxalateEscitalopram Oxalate8526
Metformin HclMetformin Hcl8123
GabapentinGabapentin7731
Trazodone HclTrazodone Hcl7117
MethylprednisoloneMethylprednisolone7056
MounjaroTirzepatide62suppressed
Metoprolol TartrateMetoprolol Tartrate6119
Tamsulosin HclTamsulosin Hcl6021
ChlorthalidoneChlorthalidone5818
XareltoRivaroxaban5712
Pravastatin SodiumPravastatin Sodium5615
Albuterol Sulfate HfaAlbuterol Sulfate5223
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav5236
FamotidineFamotidine5116
Potassium ChloridePotassium Chloride5114
SynthroidLevothyroxine Sodium4912
PaxlovidNirmatrelvir/Ritonavir4846
Zolpidem TartrateZolpidem Tartrate4813
JanuviaSitagliptin Phosphate47suppressed
ValsartanValsartan4712
SpironolactoneSpironolactone4511
EzetimibeEzetimibe4418
ClonazepamClonazepam4311
AzithromycinAzithromycin4240
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide41suppressed
NaproxenNaproxen3917
RamiprilRamipril38suppressed
ColchicineColchicine3713
Fluoxetine HclFluoxetine Hcl37suppressed
Montelukast SodiumMontelukast Sodium37suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3727
Fluticasone PropionateFluticasone Propionate3613
Glipizide ErGlipizide3611
CarvedilolCarvedilol34suppressed
Alendronate SodiumAlendronate Sodium3312
ClopidogrelClopidogrel Bisulfate3312
AtenololAtenolol32suppressed
Methenamine HippurateMethenamine Hippurate32suppressed
Cefpodoxime ProxetilCefpodoxime Proxetil2718
AlprazolamAlprazolam25suppressed
Bupropion XlBupropion Hcl25suppressed
Hydralazine HclHydralazine Hcl25suppressed
Doxycycline HyclateDoxycycline Hyclate2321
Duloxetine HclDuloxetine Hcl23suppressed
Breo ElliptaFluticasone/Vilanterol21suppressed
CefuroximeCefuroxime Axetil2118
Ipratropium BromideIpratropium Bromide21suppressed
Diclofenac SodiumDiclofenac Sodium20suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl20suppressed
Enalapril MaleateEnalapril Maleate20suppressed
LansoprazoleLansoprazole20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
CelecoxibCelecoxib19suppressed
Tramadol HclTramadol Hcl19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl18suppressed
LevofloxacinLevofloxacin18suppressed
ValacyclovirValacyclovir Hcl1812
Oxycodone HclOxycodone Hcl16suppressed
SymbicortBudesonide/Formoterol Fumarate16suppressed
GemfibrozilGemfibrozil15suppressed
EszopicloneEszopiclone14suppressed
FinasterideFinasteride14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip1311
DiovanValsartan13suppressed
FarxigaDapagliflozin Propanediol13suppressed
OzempicSemaglutide13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
DiazepamDiazepam12suppressed
FenofibrateFenofibrate Nanocrystallized12suppressed
LactuloseLactulose12suppressed
Pioglitazone HclPioglitazone Hcl12suppressed
BaclofenBaclofen11suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Fludrocortisone AcetateFludrocortisone Acetate11suppressed
Mometasone FuroateMometasone Furoate11suppressed
NystatinNystatin11suppressed
Tresiba Flextouch U-100Insulin Degludec11suppressed

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