Healthcare provider profile · identity verified

Gerard K Williams, MD

Allopathic & Osteopathic Physicians|Internal Medicine · LAFAYETTE, LA · NPI 1295728749

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 Gerard K Williams, MD received $154.07 in general payments during 2025 across 8 reported records.

Exact Sciences Corporation accounted for 25.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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

ABBVIE 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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Creon by this doctor in 2024.

ABBVIE 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 121 claims for Linzess by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 44 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 44 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 34 claims for Trulicity by this doctor in 2024.

Otsuka America Pharmaceutical, 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 NUEDEXTA as an associated drug or biological on 393 records involving 285 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Nuedexta by this doctor in 2024.

Otsuka America Pharmaceutical, 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 55 claims for Rexulti by this doctor in 2024.

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

Payment overview · 2025

General Payments

$154.07

8 reported records · 7 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
Exact Sciences Corporation Unresolved — no canonical attribution shown $38.4525.0%22025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $27.1917.6%12025
ABBVIE INC. Unresolved — no canonical attribution shown $19.6512.8%12025
Corium, LLC Unresolved — no canonical attribution shown $19.2612.5%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $18.5812.1%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $16.9311.0%12025
Ardelyx, Inc. Unresolved — no canonical attribution shown $14.019.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$154.078

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
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $38.45 2 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $27.19 1 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $19.65 1 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $19.26 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $18.58 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $16.93 1 2025
Source payment records
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $14.01 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
JARDIANCE
jardiance
2025 Jardiance 2024 44
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 55
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
121 11
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
44 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
44 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
34 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 NUEDEXTA
open payments reported associated product
CMS Open Payments — General Payments
393 supporting records · 285 recipient NPIs · example record 1227268901
Nuedexta · 2024
Exact normalized brand match · 1 Part D row
36 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
55 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
Amlodipine BesylateAmlodipine Besylate629102
Atorvastatin CalciumAtorvastatin Calcium56781
Levothyroxine SodiumLevothyroxine Sodium41054
GabapentinGabapentin35759
Metformin HclMetformin Hcl32855
FurosemideFurosemide32747
EliquisApixaban29129
Pantoprazole SodiumPantoprazole Sodium27850
Metoprolol SuccinateMetoprolol Succinate26839
Trazodone HclTrazodone Hcl26544
LisinoprilLisinopril22935
Potassium ChloridePotassium Chloride22227
Diclofenac SodiumDiclofenac Sodium21935
ClopidogrelClopidogrel Bisulfate21528
Tamsulosin HclTamsulosin Hcl21234
Duloxetine HclDuloxetine Hcl20123
Metoprolol TartrateMetoprolol Tartrate20130
HydrochlorothiazideHydrochlorothiazide19233
Escitalopram OxalateEscitalopram Oxalate18734
Rosuvastatin CalciumRosuvastatin Calcium17741
Pravastatin SodiumPravastatin Sodium17530
MeloxicamMeloxicam16929
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16326
Tramadol HclTramadol Hcl16032
OmeprazoleOmeprazole15626
FamotidineFamotidine15425
LorazepamLorazepam15419
Fluticasone PropionateFluticasone Propionate15036
LevetiracetamLevetiracetam14817
Sertraline HclSertraline Hcl14626
Quetiapine FumarateQuetiapine Fumarate14317
Donepezil HclDonepezil Hcl14021
Alendronate SodiumAlendronate Sodium13421
Montelukast SodiumMontelukast Sodium13028
Losartan PotassiumLosartan Potassium12721
Memantine HclMemantine Hcl12517
RisperidoneRisperidone12515
CarvedilolCarvedilol12425
LinzessLinaclotide12111
MirtazapineMirtazapine11914
FinasterideFinasteride11614
Citalopram HbrCitalopram Hydrobromide11318
Pioglitazone HclPioglitazone Hcl11322
SimvastatinSimvastatin10220
Buspirone HclBuspirone Hcl9915
XareltoRivaroxaban98suppressed
JanuviaSitagliptin Phosphate83suppressed
GlipizideGlipizide8016
Glipizide ErGlipizide7617
Ropinirole HclRopinirole Hcl75suppressed
Albuterol SulfateAlbuterol Sulfate7312
EzetimibeEzetimibe6814
LantusInsulin Glargine,hum.Rec.Anlog67suppressed
LatanoprostLatanoprost63suppressed
SpironolactoneSpironolactone63suppressed
TradjentaLinagliptin63suppressed
Amiodarone HclAmiodarone Hcl61suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6112
BaclofenBaclofen60suppressed
Fluoxetine HclFluoxetine Hcl5911
Oxybutynin ChlorideOxybutynin Chloride59suppressed
TopiramateTopiramate59suppressed
IbuprofenIbuprofen5712
RexultiBrexpiprazole55suppressed
AllopurinolAllopurinol54suppressed
Breo ElliptaFluticasone/Vilanterol54suppressed
PrednisonePrednisone5428
FenofibrateFenofibrate Nanocrystallized53suppressed
OzempicSemaglutide49suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen48suppressed
Propranolol HclPropranolol Hcl48suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl47suppressed
LevofloxacinLevofloxacin4533
JardianceEmpagliflozin44suppressed
ScopolamineScopolamine44suppressed
Triamcinolone AcetonideTriamcinolone Acetonide4417
Albuterol Sulfate HfaAlbuterol Sulfate4314
CilostazolCilostazol43suppressed
Zolpidem TartrateZolpidem Tartrate42suppressed
AripiprazoleAripiprazole41suppressed
Benazepril HclBenazepril Hcl4111
NystatinNystatin4117
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog39suppressed
CyclosporineCyclosporine39suppressed
MyrbetriqMirabegron39suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3928
TorsemideTorsemide39suppressed
AlprazolamAlprazolam36suppressed
CarbamazepineCarbamazepine36suppressed
LamotrigineLamotrigine36suppressed
NuedextaDextromethorphan Hbr/Quinidine36suppressed
AtenololAtenolol35suppressed
Clonidine HclClonidine Hcl3513
Hydroxyzine HclHydroxyzine Hcl35suppressed
PrimidonePrimidone35suppressed
EntrestoSacubitril/Valsartan34suppressed
Hydralazine HclHydralazine Hcl34suppressed
LactuloseLactulose34suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride34suppressed
TrulicityDulaglutide34suppressed
Venlafaxine Hcl ErVenlafaxine Hcl34suppressed
CalcitriolCalcitriol33suppressed
ClonazepamClonazepam33suppressed
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat33suppressed
IngrezzaValbenazine Tosylate33suppressed
Benztropine MesylateBenztropine Mesylate32suppressed
Midodrine HclMidodrine Hcl32suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3217
ValsartanValsartan32suppressed
Venlafaxine HclVenlafaxine Hcl32suppressed
Warfarin SodiumWarfarin Sodium32suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3122
Enalapril MaleateEnalapril Maleate31suppressed
HydrocortisoneHydrocortisone3114
OxcarbazepineOxcarbazepine31suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended31suppressed
Divalproex SodiumDivalproex Sodium30suppressed
Divalproex Sodium ErDivalproex Sodium30suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog30suppressed
PhenobarbitalPhenobarbital30suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl29suppressed
Tizanidine HclTizanidine Hcl28suppressed
Amitriptyline HclAmitriptyline Hcl27suppressed
ColchicineColchicine27suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide27suppressed
Meclizine HclMeclizine Hcl27suppressed
GemfibrozilGemfibrozil26suppressed
Ipratropium BromideIpratropium Bromide26suppressed
GlimepirideGlimepiride25suppressed
MultaqDronedarone Hcl25suppressed
Paroxetine HclParoxetine Hcl25suppressed
CelecoxibCelecoxib24suppressed
Isosorbide DinitrateIsosorbide Dinitrate24suppressed
Ondansetron HclOndansetron Hcl2421
Pramipexole DihydrochloridePramipexole Di-Hcl24suppressed
RivastigmineRivastigmine24suppressed
Dicyclomine HclDicyclomine Hcl23suppressed
Cyproheptadine HclCyproheptadine Hcl22suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine22suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads22suppressed
Metoclopramide HclMetoclopramide Hcl22suppressed
Tolterodine Tartrate ErTolterodine Tartrate22suppressed
TrimethoprimTrimethoprim22suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate20suppressed
KetoconazoleKetoconazole20suppressed
Brimonidine TartrateBrimonidine Tartrate19suppressed
Lidocaine HclLidocaine Hcl/Pf1917
Olmesartan MedoxomilOlmesartan Medoxomil19suppressed
ClonidineClonidine18suppressed
LovastatinLovastatin18suppressed
Nebivolol HclNebivolol Hcl18suppressed
Carbidopa-LevodopaCarbidopa/Levodopa17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril16suppressed
ChlorthalidoneChlorthalidone16suppressed
FarxigaDapagliflozin Propanediol16suppressed
FentanylFentanyl16suppressed
MethylprednisoloneMethylprednisolone1615
PregabalinPregabalin16suppressed
Sevelamer CarbonateSevelamer Carbonate16suppressed
Dorzolamide HclDorzolamide Hcl15suppressed
LevemirInsulin Detemir15suppressed
PerphenazinePerphenazine15suppressed
Promethazine HclPromethazine Hcl15suppressed
Solifenacin SuccinateSolifenacin Succinate15suppressed
SymbicortBudesonide/Formoterol Fumarate15suppressed
Valproic AcidValproic Acid (As Sodium Salt)15suppressed
AnastrozoleAnastrozole14suppressed
Doxazosin MesylateDoxazosin Mesylate14suppressed
Labetalol HclLabetalol Hcl14suppressed
Verapamil HclVerapamil Hcl14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1311
Dexlansoprazole DrDexlansoprazole13suppressed
DiazepamDiazepam13suppressed
Diltiazem HclDiltiazem Hcl13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
LetrozoleLetrozole13suppressed
Memantine Hcl ErMemantine Hcl13suppressed
Nifedipine ErNifedipine13suppressed
Timolol MaleateTimolol Maleate13suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide12suppressed
CreonLipase/Protease/Amylase12suppressed
Doxepin HclDoxepin Hcl12suppressed
DutasterideDutasteride12suppressed
SucralfateSucralfate12suppressed
Tolterodine TartrateTolterodine Tartrate12suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic12suppressed
UrsodiolUrsodiol12suppressed
CeftriaxoneCeftriaxone Sodium11suppressed
Dexamethasone Sodium PhosphateDexamethasone Sodium Phosphate11suppressed
Diclofenac PotassiumDiclofenac Potassium11suppressed
RestasisCyclosporine11suppressed
Spiriva RespimatTiotropium Bromide11suppressed
TemazepamTemazepam11suppressed

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 $154.07 · 8 records Exact Sciences Corporation Azstarys, Cologuard Collection Kit, IBSRELA, JARDIANCE, MOUNJARO, REXULTI, VRAYLAR 7
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