Healthcare provider profile · identity verified

Jack Hamson, M.D.

Internal Medicine · SOUTH BEND, WA · NPI 1932633385

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 Calcium23184
Amlodipine BesylateAmlodipine Besylate17264
Losartan PotassiumLosartan Potassium13139
Metoprolol SuccinateMetoprolol Succinate12643
GabapentinGabapentin11547
Levothyroxine SodiumLevothyroxine Sodium11541
LisinoprilLisinopril11242
Rosuvastatin CalciumRosuvastatin Calcium11234
OmeprazoleOmeprazole11042
Potassium ChloridePotassium Chloride8530
Tamsulosin HclTamsulosin Hcl7927
Albuterol Sulfate HfaAlbuterol Sulfate6621
Metformin Hcl ErMetformin Hcl6526
GlimepirideGlimepiride6217
Trazodone HclTrazodone Hcl5922
Pantoprazole SodiumPantoprazole Sodium5324
Duloxetine HclDuloxetine Hcl5016
Warfarin SodiumWarfarin Sodium50suppressed
Alendronate SodiumAlendronate Sodium4616
Metoprolol TartrateMetoprolol Tartrate4213
Sertraline HclSertraline Hcl4212
SimvastatinSimvastatin3711
Oxycodone HclOxycodone Hcl36suppressed
TorsemideTorsemide3612
EliquisApixaban3311
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen33suppressed
Metformin HclMetformin Hcl3211
Fluticasone PropionateFluticasone Propionate3117
Cyclobenzaprine HclCyclobenzaprine Hcl3011
Montelukast SodiumMontelukast Sodium3012
PrednisonePrednisone3013
Escitalopram OxalateEscitalopram Oxalate29suppressed
PregabalinPregabalin2911
FurosemideFurosemide2713
AllopurinolAllopurinol26suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog2411
CephalexinCephalexin2314
HydrochlorothiazideHydrochlorothiazide23suppressed
Bupropion XlBupropion Hcl21suppressed
Pravastatin SodiumPravastatin Sodium21suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
EzetimibeEzetimibe20suppressed
Tizanidine HclTizanidine Hcl20suppressed
FinasterideFinasteride19suppressed
LorazepamLorazepam19suppressed
CarvedilolCarvedilol18suppressed
LovastatinLovastatin18suppressed
NaproxenNaproxen18suppressed
Dicyclomine HclDicyclomine Hcl17suppressed
JardianceEmpagliflozin17suppressed
OzempicSemaglutide17suppressed
Cefpodoxime ProxetilCefpodoxime Proxetil1614
Fluoxetine HclFluoxetine Hcl16suppressed
TopiramateTopiramate16suppressed
Citalopram HbrCitalopram Hydrobromide15suppressed
Donepezil HclDonepezil Hcl15suppressed
JanuviaSitagliptin Phosphate15suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Spiriva RespimatTiotropium Bromide14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
Humalog Kwikpen U-100Insulin Lispro13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav12suppressed
AtenololAtenolol12suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl12suppressed
Buspirone HclBuspirone Hcl12suppressed
MeloxicamMeloxicam12suppressed
NystatinNystatin12suppressed
SpironolactoneSpironolactone12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
UbrelvyUbrogepant12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
XareltoRivaroxaban12suppressed
AlprazolamAlprazolam11suppressed
Bupropion Hcl SrBupropion Hcl11suppressed
ClonazepamClonazepam11suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed

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