Healthcare provider profile · identity verified

Peter George Malmquist, M.D.

Family Practice · ANDERSON, SC · NPI 1154423689

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
Amlodipine BesylateAmlodipine Besylate14043
LisinoprilLisinopril11735
Atorvastatin CalciumAtorvastatin Calcium10730
OmeprazoleOmeprazole6821
Levothyroxine SodiumLevothyroxine Sodium6718
Pravastatin SodiumPravastatin Sodium5719
SimvastatinSimvastatin5615
Metformin Hcl ErMetformin Hcl5113
Tramadol HclTramadol Hcl49suppressed
Losartan PotassiumLosartan Potassium4713
Metoprolol SuccinateMetoprolol Succinate4712
FurosemideFurosemide4414
Montelukast SodiumMontelukast Sodium4115
Pioglitazone HclPioglitazone Hcl41suppressed
EzetimibeEzetimibe39suppressed
HydrochlorothiazideHydrochlorothiazide37suppressed
CarvedilolCarvedilol36suppressed
GlimepirideGlimepiride3311
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid31suppressed
Zolpidem TartrateZolpidem Tartrate30suppressed
Trazodone HclTrazodone Hcl29suppressed
GabapentinGabapentin27suppressed
DiazepamDiazepam26suppressed
Diclofenac SodiumDiclofenac Sodium25suppressed
FamotidineFamotidine2511
AllopurinolAllopurinol24suppressed
Duloxetine HclDuloxetine Hcl24suppressed
Enalapril MaleateEnalapril Maleate23suppressed
Pantoprazole SodiumPantoprazole Sodium23suppressed
Ropinirole HclRopinirole Hcl23suppressed
Metformin HclMetformin Hcl22suppressed
Nifedipine ErNifedipine22suppressed
Potassium ChloridePotassium Chloride22suppressed
AzithromycinAzithromycin2113
Rosuvastatin CalciumRosuvastatin Calcium21suppressed
Albuterol Sulfate HfaAlbuterol Sulfate19suppressed
EliquisApixaban19suppressed
Fluticasone PropionateFluticasone Propionate19suppressed
Quetiapine FumarateQuetiapine Fumarate19suppressed
Buspirone HclBuspirone Hcl18suppressed
ClonazepamClonazepam18suppressed
Doxazosin MesylateDoxazosin Mesylate18suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18suppressed
JanuviaSitagliptin Phosphate18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
Donepezil HclDonepezil Hcl16suppressed
CelecoxibCelecoxib15suppressed
FinasterideFinasteride15suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
OzempicSemaglutide15suppressed
Tamsulosin HclTamsulosin Hcl15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
FarxigaDapagliflozin Propanediol13suppressed
Metoprolol TartrateMetoprolol Tartrate13suppressed
Sertraline HclSertraline Hcl13suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Alendronate SodiumAlendronate Sodium11suppressed
AlprazolamAlprazolam11suppressed
Amitriptyline HclAmitriptyline Hcl11suppressed
CefdinirCefdinir11suppressed
FluconazoleFluconazole11suppressed
Hydroxyzine HclHydroxyzine Hcl11suppressed
MeloxicamMeloxicam11suppressed
NexlizetBempedoic Acid/Ezetimibe11suppressed
Promethazine HclPromethazine Hcl11suppressed

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