Healthcare provider profile · identity verified

Jeffrey R Williamson, DO

Allopathic & Osteopathic Physicians|Family Medicine · ROCKFORD, MI · NPI 1881641165

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 Jeffrey R Williamson, DO received $593.80 in general payments during 2025 across 31 reported records.

GlaxoSmithKline, LLC. accounted for 13.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 21 associated products.

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

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 15 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 38 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 40 claims for Mounjaro 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 15 claims for Trulicity by this doctor in 2024.

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 14 claims for Ozempic by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 52 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$593.80

31 reported records · 15 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $78.3613.2%42025
PFIZER INC. Unresolved — no canonical attribution shown $71.0612.0%42025
ABBVIE INC. Unresolved — no canonical attribution shown $65.8911.1%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $64.9510.9%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $48.608.2%32025
Novo Nordisk Inc Unresolved — no canonical attribution shown $46.137.8%22025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $41.697.0%22025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $34.875.9%22025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $26.104.4%12025
ABIOMED Unresolved — no canonical attribution shown $23.534.0%12025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $22.223.7%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $21.663.6%12025
Globus Medical, Inc. Unresolved — no canonical attribution shown $19.723.3%12025
Krystal Biotech Inc Unresolved — no canonical attribution shown $14.572.5%12025
Tonix Medicines, Inc. Unresolved — no canonical attribution shown $14.452.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$593.8031

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
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $71.06 4 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $71.06 4 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $62.41 3 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $48.73 3 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $48.60 3 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $48.60 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $46.13 2 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $46.13 2 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $41.69 2 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $40.87 2 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $34.87 2 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $26.10 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $25.02 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $25.02 1 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.22 1 2025
Source payment records
  • 2025-09-16 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $22.22 · Open Payments source
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $21.66 1 2025
Source payment records
Senza
Normalized: senza
Device Globus Medical, Inc. $19.72 1 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $16.22 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $15.95 1 2025
Source payment records
VYJUVEK
Normalized: vyjuvek
Drug Krystal Biotech Inc $14.57 1 2025
Source payment records
TONMYA
Normalized: tonmya
Drug Tonix Medicines, Inc. $14.45 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
FARXIGA
farxiga
2025 Farxiga 2024 15
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 40 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 14
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
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
15 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
38 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
40 11
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
15 suppressed by CMS
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
14 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
52 20

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 Calcium351123
Levothyroxine SodiumLevothyroxine Sodium20863
LisinoprilLisinopril17054
OmeprazoleOmeprazole15656
Tamsulosin HclTamsulosin Hcl14047
Amlodipine BesylateAmlodipine Besylate13951
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13149
FurosemideFurosemide12447
Losartan PotassiumLosartan Potassium12044
GabapentinGabapentin11949
Pantoprazole SodiumPantoprazole Sodium11938
CelecoxibCelecoxib10635
Escitalopram OxalateEscitalopram Oxalate8625
Metoprolol SuccinateMetoprolol Succinate8228
Metformin HclMetformin Hcl7325
AzithromycinAzithromycin7047
GlimepirideGlimepiride6723
Potassium ChloridePotassium Chloride6627
Tramadol HclTramadol Hcl6620
HydrochlorothiazideHydrochlorothiazide5920
PrednisonePrednisone5919
Rosuvastatin CalciumRosuvastatin Calcium5424
CarvedilolCarvedilol5322
EliquisApixaban5220
Metoprolol TartrateMetoprolol Tartrate5018
Quetiapine FumarateQuetiapine Fumarate5014
Duloxetine HclDuloxetine Hcl4518
Albuterol Sulfate HfaAlbuterol Sulfate4423
Trazodone HclTrazodone Hcl4320
Lantus SolostarInsulin Glargine,hum.Rec.Anlog4212
MirtazapineMirtazapine4215
ClopidogrelClopidogrel Bisulfate4115
MounjaroTirzepatide4011
AllopurinolAllopurinol3917
FamotidineFamotidine3911
MeloxicamMeloxicam3918
JardianceEmpagliflozin38suppressed
LorazepamLorazepam3821
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3712
FinasterideFinasteride35suppressed
Fluoxetine HclFluoxetine Hcl3413
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3415
XareltoRivaroxaban33suppressed
Methenamine HippurateMethenamine Hippurate3111
IbuprofenIbuprofen29suppressed
Citalopram HbrCitalopram Hydrobromide28suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2726
Venlafaxine Hcl ErVenlafaxine Hcl27suppressed
AtenololAtenolol26suppressed
Fluticasone PropionateFluticasone Propionate2612
LatanoprostLatanoprost26suppressed
SimvastatinSimvastatin2611
Bupropion XlBupropion Hcl25suppressed
DiazepamDiazepam25suppressed
Metformin Hcl ErMetformin Hcl24suppressed
Pioglitazone HclPioglitazone Hcl24suppressed
Propranolol Hcl ErPropranolol Hcl24suppressed
Triamcinolone AcetonideTriamcinolone Acetonide24suppressed
Warfarin SodiumWarfarin Sodium24suppressed
Ipratropium BromideIpratropium Bromide23suppressed
SpironolactoneSpironolactone23suppressed
ValacyclovirValacyclovir Hcl23suppressed
Doxazosin MesylateDoxazosin Mesylate21suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol21suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl20suppressed
FluconazoleFluconazole2012
MethimazoleMethimazole20suppressed
Paroxetine HclParoxetine Hcl20suppressed
Morphine Sulfate ErMorphine Sulfate1911
Sertraline HclSertraline Hcl19suppressed
AlprazolamAlprazolam18suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
LevoxylLevothyroxine Sodium17suppressed
Montelukast SodiumMontelukast Sodium17suppressed
Morphine SulfateMorphine Sulfate1713
NystatinNystatin1711
Amitriptyline HclAmitriptyline Hcl16suppressed
EszopicloneEszopiclone16suppressed
EzetimibeEzetimibe16suppressed
Humalog Mix 75-25 KwikpenInsulin Lispro Protamin/Lispro16suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip15suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium15suppressed
EuthyroxLevothyroxine Sodium15suppressed
FarxigaDapagliflozin Propanediol15suppressed
MethylprednisoloneMethylprednisolone1515
NitroglycerinNitroglycerin15suppressed
Risperidone OdtRisperidone15suppressed
TrulicityDulaglutide15suppressed
Carbidopa-LevodopaCarbidopa/Levodopa14suppressed
CilostazolCilostazol14suppressed
Doxycycline HyclateDoxycycline Hyclate1411
Hydroxyzine HclHydroxyzine Hcl14suppressed
NaproxenNaproxen14suppressed
Nebivolol HclNebivolol Hcl14suppressed
OzempicSemaglutide14suppressed
PregabalinPregabalin14suppressed
TorsemideTorsemide14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
AripiprazoleAripiprazole13suppressed
Hydralazine HclHydralazine Hcl13suppressed
Meclizine HclMeclizine Hcl13suppressed
Nifedipine ErNifedipine13suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp13suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
Pravastatin SodiumPravastatin Sodium13suppressed
Solifenacin SuccinateSolifenacin Succinate13suppressed
Tizanidine HclTizanidine Hcl13suppressed
Buspirone HclBuspirone Hcl12suppressed
Ciprofloxacin HclCiprofloxacin Hcl1211
Hydromorphone HclHydromorphone Hcl12suppressed
Terbinafine HclTerbinafine Hcl12suppressed
Breo ElliptaFluticasone/Vilanterol11suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol11suppressed
BrinzolamideBrinzolamide11suppressed
ClonazepamClonazepam11suppressed
ConstuloseLactulose11suppressed
FentanylFentanyl11suppressed

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 $593.80 · 31 records GlaxoSmithKline, LLC. AIRSUPRA, CAPLYTA, FANAPT, FARXIGA, MOUNJARO, NURTEC ODT, Ozempic, QULIPTA, Rybelsus, SHINGRIX, Senza, TONMYA, TRELEGY ELLIPTA, The Cologuard Plus Collection Kit, UBRELVY, VRAYLAR, VYJUVEK, Veozah, XIFAXAN, ZAVZPRET, ZEPBOUND 6
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