Healthcare provider profile · identity verified

Katherine Ann Williams, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · HONOLULU, HI · NPI 1467527556

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 Katherine Ann Williams, M.D. received $45.10 in general payments during 2025 across 2 reported records.

Novo Nordisk Inc accounted for 100.0% of that reported general-payment amount.

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

A separate comparison found the same explicitly named product in public Medicare Part D data: Ozempic.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$45.10

2 reported records · 1 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 $45.10100.0%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$45.102

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $27.98 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $17.12 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
Ozempic
ozempic
2025 Ozempic 2024 29
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS

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 Calcium600187
Losartan PotassiumLosartan Potassium377116
Amlodipine BesylateAmlodipine Besylate348108
Levothyroxine SodiumLevothyroxine Sodium19256
Metformin HclMetformin Hcl15848
SimvastatinSimvastatin15247
Alendronate SodiumAlendronate Sodium14453
Metoprolol SuccinateMetoprolol Succinate14243
Pravastatin SodiumPravastatin Sodium11836
LisinoprilLisinopril11440
OmeprazoleOmeprazole10845
Metformin Hcl ErMetformin Hcl9835
JardianceEmpagliflozin9221
HydrochlorothiazideHydrochlorothiazide8325
IrbesartanIrbesartan7423
FurosemideFurosemide6124
GabapentinGabapentin6126
FamotidineFamotidine5817
Glipizide ErGlipizide5117
SynthroidLevothyroxine Sodium5114
AllopurinolAllopurinol5015
EliquisApixaban4914
Rosuvastatin CalciumRosuvastatin Calcium4818
Trazodone HclTrazodone Hcl4713
Pantoprazole SodiumPantoprazole Sodium4416
AtenololAtenolol4011
Albuterol Sulfate HfaAlbuterol Sulfate3826
MirtazapineMirtazapine3816
Tamsulosin HclTamsulosin Hcl3611
CarvedilolCarvedilol3211
Donepezil HclDonepezil Hcl3112
OzempicSemaglutide29suppressed
PrednisonePrednisone2918
Fluticasone PropionateFluticasone Propionate2813
Escitalopram OxalateEscitalopram Oxalate27suppressed
LovastatinLovastatin26suppressed
Citalopram HbrCitalopram Hydrobromide24suppressed
ClopidogrelClopidogrel Bisulfate24suppressed
Potassium ChloridePotassium Chloride24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog23suppressed
Wixela InhubFluticasone Propion/Salmeterol23suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide20suppressed
FinasterideFinasteride18suppressed
Metoprolol TartrateMetoprolol Tartrate18suppressed
EzetimibeEzetimibe16suppressed
FarxigaDapagliflozin Propanediol16suppressed
Zolpidem TartrateZolpidem Tartrate16suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide15suppressed
RepaglinideRepaglinide14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
XareltoRivaroxaban14suppressed
Buspirone HclBuspirone Hcl13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
JanuviaSitagliptin Phosphate13suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic13suppressed
ValsartanValsartan13suppressed
CephalexinCephalexin1211
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1211
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
AzithromycinAzithromycin1111
Duloxetine HclDuloxetine Hcl11suppressed
Felodipine ErFelodipine11suppressed
FenofibrateFenofibrate,micronized11suppressed
JanumetSitagliptin Phos/Metformin Hcl11suppressed
LevetiracetamLevetiracetam11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1111

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 $45.10 · 2 records Novo Nordisk Inc Ozempic, Wegovy 1
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