Healthcare provider profile · identity verified

Ian D. Bonner, M.D.

Family Practice · BELLINGHAM, WA · NPI 1730280215

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
LisinoprilLisinopril23260
Atorvastatin CalciumAtorvastatin Calcium13539
SimvastatinSimvastatin11130
Levothyroxine SodiumLevothyroxine Sodium9927
Amlodipine BesylateAmlodipine Besylate8725
Tamsulosin HclTamsulosin Hcl8324
HydrochlorothiazideHydrochlorothiazide8122
GabapentinGabapentin7917
OmeprazoleOmeprazole7924
Metformin HclMetformin Hcl6719
Losartan PotassiumLosartan Potassium6522
LovastatinLovastatin6117
Pantoprazole SodiumPantoprazole Sodium6017
AllopurinolAllopurinol4911
Citalopram HbrCitalopram Hydrobromide4512
Metoprolol SuccinateMetoprolol Succinate4411
Albuterol Sulfate HfaAlbuterol Sulfate4318
Sertraline HclSertraline Hcl4313
GlimepirideGlimepiride3911
AtenololAtenolol37suppressed
Methylphenidate HclMethylphenidate Hcl37suppressed
CarvedilolCarvedilol3611
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3615
Trazodone HclTrazodone Hcl3611
Buprenorphine HclBuprenorphine Hcl32suppressed
Bupropion XlBupropion Hcl32suppressed
FinasterideFinasteride32suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide32suppressed
Potassium ChloridePotassium Chloride3111
Tramadol HclTramadol Hcl31suppressed
Metoprolol TartrateMetoprolol Tartrate27suppressed
PrednisonePrednisone2712
Rosuvastatin CalciumRosuvastatin Calcium26suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid26suppressed
Alendronate SodiumAlendronate Sodium25suppressed
AzithromycinAzithromycin2423
Montelukast SodiumMontelukast Sodium24suppressed
Hydroxyzine HclHydroxyzine Hcl23suppressed
LorazepamLorazepam22suppressed
OzempicSemaglutide22suppressed
XareltoRivaroxaban22suppressed
AcyclovirAcyclovir2111
AlprazolamAlprazolam2111
Buspirone HclBuspirone Hcl20suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine20suppressed
Metformin Hcl ErMetformin Hcl19suppressed
EliquisApixaban17suppressed
Fluticasone PropionateFluticasone Propionate17suppressed
JardianceEmpagliflozin17suppressed
PregabalinPregabalin16suppressed
SynthroidLevothyroxine Sodium16suppressed
Tizanidine HclTizanidine Hcl16suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
Zolpidem TartrateZolpidem Tartrate15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide14suppressed
DiazepamDiazepam13suppressed
FurosemideFurosemide13suppressed
MeloxicamMeloxicam13suppressed
Duloxetine HclDuloxetine Hcl12suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
MounjaroTirzepatide12suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
MirtazapineMirtazapine11suppressed
Pravastatin SodiumPravastatin Sodium11suppressed

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