Healthcare provider profile · identity verified

David Ryan Bolthouse, M.D.

Family Practice · POULSBO, WA · NPI 1811275563

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 Calcium342109
LisinoprilLisinopril20263
Levothyroxine SodiumLevothyroxine Sodium16948
Losartan PotassiumLosartan Potassium14045
Amlodipine BesylateAmlodipine Besylate12143
Tamsulosin HclTamsulosin Hcl10631
OmeprazoleOmeprazole9840
Rosuvastatin CalciumRosuvastatin Calcium9028
Duloxetine HclDuloxetine Hcl8825
HydrochlorothiazideHydrochlorothiazide8825
MeloxicamMeloxicam8322
SimvastatinSimvastatin7624
ArexvyRsvpref3 Antigen/As01e/Pf7070
Pravastatin SodiumPravastatin Sodium6722
GabapentinGabapentin6623
Trazodone HclTrazodone Hcl6621
Metoprolol SuccinateMetoprolol Succinate5422
Metformin HclMetformin Hcl5217
Terazosin HclTerazosin Hcl4614
Doxepin HclDoxepin Hcl4512
Alendronate SodiumAlendronate Sodium3912
Fluoxetine HclFluoxetine Hcl38suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3727
Metoprolol TartrateMetoprolol Tartrate34suppressed
AllopurinolAllopurinol3311
AtenololAtenolol30suppressed
FamotidineFamotidine30suppressed
Oxycodone HclOxycodone Hcl30suppressed
Fluticasone PropionateFluticasone Propionate28suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen28suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2811
Pantoprazole SodiumPantoprazole Sodium2813
Potassium ChloridePotassium Chloride27suppressed
ChlorthalidoneChlorthalidone26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
Sertraline HclSertraline Hcl24suppressed
JardianceEmpagliflozin23suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf2322
AlvescoCiclesonide22suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
EstradiolEstradiol21suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
GlipizideGlipizide20suppressed
PrednisonePrednisone2013
FinasterideFinasteride19suppressed
Metformin Hcl ErMetformin Hcl19suppressed
Bupropion XlBupropion Hcl18suppressed
Clobetasol PropionateClobetasol Propionate18suppressed
MirtazapineMirtazapine18suppressed
Propranolol Hcl ErPropranolol Hcl18suppressed
Humulin NInsulin Nph Human Isophane17suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
EzetimibeEzetimibe15suppressed
FurosemideFurosemide15suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen15suppressed
Wixela InhubFluticasone Propion/Salmeterol15suppressed
AzithromycinAzithromycin1411
Humulin N KwikpenInsulin Nph Human Isophane14suppressed
SpironolactoneSpironolactone14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Tizanidine HclTizanidine Hcl13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
Acetaminophen-CodeineAcetaminophen With Codeine12suppressed
Benazepril HclBenazepril Hcl12suppressed
CiclopiroxCiclopirox12suppressed
Escitalopram OxalateEscitalopram Oxalate12suppressed
MinoxidilMinoxidil12suppressed
Diltiazem 24hr Er (Cd)Diltiazem 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
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