Healthcare provider profile · identity verified

Peter Nicholas Mahr, MD

Family Practice · PORTLAND, OR · NPI 1548312754

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 Calcium24168
LisinoprilLisinopril17848
Amlodipine BesylateAmlodipine Besylate16143
OmeprazoleOmeprazole13031
GabapentinGabapentin12724
Metformin HclMetformin Hcl11929
Losartan PotassiumLosartan Potassium8431
Tamsulosin HclTamsulosin Hcl8223
Diclofenac SodiumDiclofenac Sodium7330
Fluticasone PropionateFluticasone Propionate6317
CarvedilolCarvedilol6015
Albuterol Sulfate HfaAlbuterol Sulfate5919
EliquisApixaban5913
Quetiapine FumarateQuetiapine Fumarate56suppressed
Metoprolol SuccinateMetoprolol Succinate5320
Trazodone HclTrazodone Hcl52suppressed
Levothyroxine SodiumLevothyroxine Sodium5013
Duloxetine HclDuloxetine Hcl49suppressed
Bupropion XlBupropion Hcl46suppressed
FurosemideFurosemide4213
Metoprolol TartrateMetoprolol Tartrate42suppressed
Triamcinolone AcetonideTriamcinolone Acetonide4215
IbuprofenIbuprofen4012
Lantus SolostarInsulin Glargine,hum.Rec.Anlog40suppressed
Pantoprazole SodiumPantoprazole Sodium38suppressed
Metformin Hcl ErMetformin Hcl3715
MirtazapineMirtazapine36suppressed
Montelukast SodiumMontelukast Sodium36suppressed
Propranolol HclPropranolol Hcl32suppressed
ChlorthalidoneChlorthalidone31suppressed
Escitalopram OxalateEscitalopram Oxalate27suppressed
LevetiracetamLevetiracetam26suppressed
Oxycodone HclOxycodone Hcl2611
TrulicityDulaglutide26suppressed
ClopidogrelClopidogrel Bisulfate24suppressed
Divalproex SodiumDivalproex Sodium24suppressed
SimvastatinSimvastatin24suppressed
Ventolin HfaAlbuterol Sulfate24suppressed
Dicyclomine HclDicyclomine Hcl23suppressed
Trueplus Pen NeedlePen Needle, Diabetic22suppressed
GlimepirideGlimepiride21suppressed
PregabalinPregabalin21suppressed
Glipizide ErGlipizide20suppressed
OzempicSemaglutide20suppressed
Sertraline HclSertraline Hcl20suppressed
Amitriptyline HclAmitriptyline Hcl19suppressed
EzetimibeEzetimibe19suppressed
FinasterideFinasteride19suppressed
Tizanidine HclTizanidine Hcl19suppressed
Brimonidine TartrateBrimonidine Tartrate18suppressed
Hydroxyzine HclHydroxyzine Hcl18suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
HydrocortisoneHydrocortisone17suppressed
OlanzapineOlanzapine17suppressed
Ondansetron OdtOndansetron17suppressed
Hydralazine HclHydralazine Hcl16suppressed
HydrochlorothiazideHydrochlorothiazide16suppressed
Atrovent HfaIpratropium Bromide15suppressed
AzithromycinAzithromycin15suppressed
FamotidineFamotidine15suppressed
MupirocinMupirocin15suppressed
Prazosin HclPrazosin Hcl14suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro13suppressed
JardianceEmpagliflozin13suppressed
NaproxenNaproxen13suppressed
Novolog FlexpenInsulin Aspart13suppressed
Pioglitazone HclPioglitazone Hcl13suppressed
Potassium ChloridePotassium Chloride13suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter13suppressed
Alendronate SodiumAlendronate Sodium12suppressed
Betamethasone DipropionateBetamethasone Dipropionate12suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
CephalexinCephalexin12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
Memantine HclMemantine Hcl12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Quetiapine Fumarate ErQuetiapine Fumarate12suppressed
TorsemideTorsemide12suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic12suppressed
Advair HfaFluticasone Propion/Salmeterol11suppressed
AtenololAtenolol11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
NitroglycerinNitroglycerin11suppressed
Ondansetron HclOndansetron 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