Healthcare provider profile · identity verified

Michael Barth, PA-C

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · PORTLAND, OR · NPI 1023416906

Profile state: payments and partd 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

CMS Open Payments records show Michael Barth, PA-C received $195.79 in general payments during 2025 across 2 reported records.

Novo Nordisk Inc accounted for 60.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$195.79

2 reported records · 2 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Novo Nordisk Inc Unresolved — no canonical attribution shown $118.8060.7%12025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $76.9939.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$118.801
Education$76.991

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $118.80 1 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $76.99 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium7225
GabapentinGabapentin6418
LisinoprilLisinopril6120
Levothyroxine SodiumLevothyroxine Sodium5717
Metformin HclMetformin Hcl5616
Losartan PotassiumLosartan Potassium5417
OmeprazoleOmeprazole4815
Albuterol Sulfate HfaAlbuterol Sulfate3712
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog37suppressed
HydrochlorothiazideHydrochlorothiazide32suppressed
Rosuvastatin CalciumRosuvastatin Calcium32suppressed
Amlodipine BesylateAmlodipine Besylate3111
Metoprolol SuccinateMetoprolol Succinate29suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2715
Trazodone HclTrazodone Hcl25suppressed
Fluticasone PropionateFluticasone Propionate2412
Tamsulosin HclTamsulosin Hcl2411
AllopurinolAllopurinol23suppressed
Duloxetine HclDuloxetine Hcl23suppressed
Triamcinolone AcetonideTriamcinolone Acetonide23suppressed
Fluoxetine HclFluoxetine Hcl21suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl21suppressed
Pravastatin SodiumPravastatin Sodium21suppressed
EliquisApixaban20suppressed
Metformin Hcl ErMetformin Hcl20suppressed
Alendronate SodiumAlendronate Sodium19suppressed
Amitriptyline HclAmitriptyline Hcl18suppressed
CarvedilolCarvedilol17suppressed
Escitalopram OxalateEscitalopram Oxalate17suppressed
MethocarbamolMethocarbamol16suppressed
MeloxicamMeloxicam15suppressed
BaclofenBaclofen14suppressed
LoperamideLoperamide Hcl14suppressed
Sertraline HclSertraline Hcl14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
IbuprofenIbuprofen13suppressed
PentoxifyllinePentoxifylline12suppressed
ClonazepamClonazepam11suppressed
IbuIbuprofen11suppressed
Nortriptyline HclNortriptyline Hcl11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed

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 $195.79 · 2 records Novo Nordisk Inc TREMFYA, Wegovy
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