Healthcare provider profile · identity verified

Keith Edward Williamson, PA

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · CLEVELAND, TX · NPI 1811196207

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 Keith Edward Williamson, PA received $186.59 in general payments during 2025 across 15 reported records.

ARS Pharmaceuticals Operations, Inc. accounted for 16.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Farxiga 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 18 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 12 claims for Trulicity by this doctor in 2024.

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

Payment overview · 2025

General Payments

$186.59

15 reported records · 10 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
ARS Pharmaceuticals Operations, Inc. Unresolved — no canonical attribution shown $31.4416.9%22025
Corium, LLC Unresolved — no canonical attribution shown $23.6912.7%52025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $21.4811.5%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $19.8910.7%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $18.8810.1%12025
SANOFI PASTEUR INC. Unresolved — no canonical attribution shown $18.439.9%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $16.628.9%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $14.007.5%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $13.537.2%12025
Organon LLC Unresolved — no canonical attribution shown $8.634.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$186.5915

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
NEFFY
Normalized: neffy
Drug ARS Pharmaceuticals Operations, Inc. $31.44 2 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $23.69 5 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $21.48 1 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $19.89 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $18.88 1 2025
Source payment records
BEYFORTUS
Normalized: beyfortus
Biological SANOFI PASTEUR INC. $18.43 1 2025
Source payment records
MENQUADFI
Normalized: menquadfi
Biological SANOFI PASTEUR INC. $18.43 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $16.62 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $14.00 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $14.00 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $13.53 1 2025
Source payment records
NEXPLANON
Normalized: nexplanon
Drug Organon LLC $8.63 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
22 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
18 14
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
12 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 Calcium10876
Albuterol Sulfate HfaAlbuterol Sulfate5937
LisinoprilLisinopril5540
GabapentinGabapentin5441
Amlodipine BesylateAmlodipine Besylate4939
Losartan PotassiumLosartan Potassium4939
Alendronate SodiumAlendronate Sodium4533
Metformin HclMetformin Hcl4233
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide4227
Levothyroxine SodiumLevothyroxine Sodium3929
Rosuvastatin CalciumRosuvastatin Calcium3527
FurosemideFurosemide3024
Montelukast SodiumMontelukast Sodium2922
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide2820
OmeprazoleOmeprazole2822
SimvastatinSimvastatin2722
GlipizideGlipizide2619
Olmesartan MedoxomilOlmesartan Medoxomil2618
Pantoprazole SodiumPantoprazole Sodium2619
Tramadol HclTramadol Hcl2515
Metoprolol TartrateMetoprolol Tartrate2421
AzithromycinAzithromycin2321
CarvedilolCarvedilol2318
FarxigaDapagliflozin Propanediol22suppressed
Metoprolol SuccinateMetoprolol Succinate2217
ClopidogrelClopidogrel Bisulfate2116
HydrochlorothiazideHydrochlorothiazide2118
MeloxicamMeloxicam2116
Fluticasone PropionateFluticasone Propionate1914
Sertraline HclSertraline Hcl1916
JardianceEmpagliflozin1814
Nifedipine ErNifedipine1811
Tamsulosin HclTamsulosin Hcl1812
IbuprofenIbuprofen17suppressed
Trazodone HclTrazodone Hcl1713
EliquisApixaban16suppressed
Tizanidine HclTizanidine Hcl1411
Escitalopram OxalateEscitalopram Oxalate13suppressed
GlimepirideGlimepiride12suppressed
OzempicSemaglutide12suppressed
TrulicityDulaglutide12suppressed
Buspirone HclBuspirone Hcl11suppressed
FamotidineFamotidine11suppressed

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 $186.59 · 15 records ARS Pharmaceuticals Operations, Inc. Azstarys, BEYFORTUS, BREZTRI, CAPLYTA, Cologuard Collection Kit, INGREZZA, MENQUADFI, MOUNJARO, NEFFY, NEXPLANON, TRELEGY ELLIPTA, ZEPBOUND 3
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