Healthcare provider profile · identity verified

Alison Herson, MD

Family Practice · VANCOUVER, WA · NPI 1346684412

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 Calcium22668
Losartan PotassiumLosartan Potassium16352
Levothyroxine SodiumLevothyroxine Sodium14741
Rosuvastatin CalciumRosuvastatin Calcium13136
GabapentinGabapentin12434
LisinoprilLisinopril12234
Amlodipine BesylateAmlodipine Besylate8129
Potassium ChloridePotassium Chloride7419
SimvastatinSimvastatin6917
Metformin Hcl ErMetformin Hcl6519
FurosemideFurosemide6420
PradaxaDabigatran Etexilate Mesylate6322
Trazodone HclTrazodone Hcl6118
Albuterol Sulfate HfaAlbuterol Sulfate5523
HydrochlorothiazideHydrochlorothiazide5317
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5311
Duloxetine HclDuloxetine Hcl5113
Metoprolol SuccinateMetoprolol Succinate4715
GlipizideGlipizide4413
Metoprolol TartrateMetoprolol Tartrate4317
Pantoprazole SodiumPantoprazole Sodium3913
Metformin HclMetformin Hcl3712
Alendronate SodiumAlendronate Sodium3613
AtenololAtenolol3111
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3011
OmeprazoleOmeprazole28suppressed
Oxycodone HclOxycodone Hcl28suppressed
Buspirone HclBuspirone Hcl27suppressed
Sertraline HclSertraline Hcl2713
AlvescoCiclesonide23suppressed
Azelastine HclAzelastine Hcl23suppressed
MirtazapineMirtazapine23suppressed
MeloxicamMeloxicam22suppressed
Escitalopram OxalateEscitalopram Oxalate21suppressed
Humulin NInsulin Nph Human Isophane21suppressed
Hydroxyzine HclHydroxyzine Hcl21suppressed
Pravastatin SodiumPravastatin Sodium21suppressed
Tamsulosin HclTamsulosin Hcl21suppressed
PregabalinPregabalin20suppressed
Propranolol HclPropranolol Hcl19suppressed
Warfarin SodiumWarfarin Sodium19suppressed
EliquisApixaban18suppressed
ValacyclovirValacyclovir Hcl18suppressed
CarvedilolCarvedilol17suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn17suppressed
Terazosin HclTerazosin Hcl17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide17suppressed
Bupropion XlBupropion Hcl16suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
Veo Insulin SyringeSyringe And Needle,insulin,1ml16suppressed
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml16suppressed
Ipratropium BromideIpratropium Bromide15suppressed
JardianceEmpagliflozin15suppressed
Humulin RInsulin Regular, Human14suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
PrednisonePrednisone13suppressed
YuvafemEstradiol13suppressed
EstradiolEstradiol12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
SpironolactoneSpironolactone12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
LovastatinLovastatin11suppressed
Mometasone FuroateMometasone Furoate11suppressed
NystatinNystatin11suppressed
Ondansetron OdtOndansetron11suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf11suppressed

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