Healthcare provider profile · identity verified

William Benjamin Workman, D.O.

Allopathic & Osteopathic Physicians|Internal Medicine · BATTLE CREEK, MI · NPI 1407110257

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 William Benjamin Workman, D.O. received $39.95 in general payments during 2025 across 2 reported records.

Merck Sharp & Dohme LLC accounted for 55.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

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

Payment overview · 2025

General Payments

$39.95

2 reported records · 2 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
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $22.0855.3%12025
Abbott Laboratories Unresolved — no canonical attribution shown $17.8744.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$39.952

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
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $22.08 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $22.08 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $17.87 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Levothyroxine SodiumLevothyroxine Sodium679185
Atorvastatin CalciumAtorvastatin Calcium605192
Amlodipine BesylateAmlodipine Besylate489146
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen439105
Losartan PotassiumLosartan Potassium417127
OmeprazoleOmeprazole417135
Rosuvastatin CalciumRosuvastatin Calcium317108
Metoprolol SuccinateMetoprolol Succinate28490
LisinoprilLisinopril26588
Pantoprazole SodiumPantoprazole Sodium26085
AlprazolamAlprazolam25559
GabapentinGabapentin25486
Pravastatin SodiumPravastatin Sodium22973
Metformin Hcl ErMetformin Hcl19163
Sertraline HclSertraline Hcl17950
Albuterol Sulfate HfaAlbuterol Sulfate17868
SimvastatinSimvastatin17760
EliquisApixaban17252
HydrochlorothiazideHydrochlorothiazide17152
Tamsulosin HclTamsulosin Hcl16953
Metformin HclMetformin Hcl16858
Potassium ChloridePotassium Chloride15554
Fluticasone PropionateFluticasone Propionate14260
FurosemideFurosemide14055
Montelukast SodiumMontelukast Sodium12844
Tramadol HclTramadol Hcl12631
Bupropion XlBupropion Hcl12538
CarvedilolCarvedilol12139
PrednisonePrednisone11666
Metoprolol TartrateMetoprolol Tartrate11337
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11023
FamotidineFamotidine10533
Trazodone HclTrazodone Hcl10542
Duloxetine HclDuloxetine Hcl10328
OzempicSemaglutide10233
Tizanidine HclTizanidine Hcl10247
BaclofenBaclofen10031
EzetimibeEzetimibe9631
MounjaroTirzepatide9316
AllopurinolAllopurinol9128
Repatha SureclickEvolocumab8713
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride8328
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8324
IbuprofenIbuprofen8133
SynthroidLevothyroxine Sodium8025
Hydralazine HclHydralazine Hcl7922
Cyclobenzaprine HclCyclobenzaprine Hcl7831
FinasterideFinasteride7722
Zolpidem TartrateZolpidem Tartrate7725
Amlodipine-ValsartanAmlodipine Besylate/Valsartan7524
Ipratropium BromideIpratropium Bromide7525
ChlorthalidoneChlorthalidone7421
Escitalopram OxalateEscitalopram Oxalate7326
SpironolactoneSpironolactone6823
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav6744
XareltoRivaroxaban6722
Fluoxetine HclFluoxetine Hcl6619
MeloxicamMeloxicam6624
TrulicityDulaglutide6518
Ondansetron HclOndansetron Hcl6418
LansoprazoleLansoprazole6222
Morphine Sulfate ErMorphine Sulfate62suppressed
TopiramateTopiramate6221
AtenololAtenolol6117
CelecoxibCelecoxib6023
ClopidogrelClopidogrel Bisulfate5719
Venlafaxine Hcl ErVenlafaxine Hcl5718
JardianceEmpagliflozin5621
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5620
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5516
Diclofenac SodiumDiclofenac Sodium5325
LorazepamLorazepam5216
LovastatinLovastatin5214
Paroxetine HclParoxetine Hcl5015
Hydroxyzine HclHydroxyzine Hcl4925
GlimepirideGlimepiride4816
Diltiazem 24hr Er (Cd)Diltiazem Hcl4718
Buspirone HclBuspirone Hcl4519
Esomeprazole MagnesiumEsomeprazole Magnesium4516
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4516
MyrbetriqMirabegron45suppressed
Alendronate SodiumAlendronate Sodium4414
Clonidine HclClonidine Hcl4413
Ropinirole HclRopinirole Hcl4316
NystatinNystatin4123
SucralfateSucralfate4114
Glipizide ErGlipizide4013
LinzessLinaclotide4012
Acetaminophen-CodeineAcetaminophen With Codeine3911
TorsemideTorsemide3816
Meclizine HclMeclizine Hcl3712
PregabalinPregabalin37suppressed
Ventolin HfaAlbuterol Sulfate3714
EstradiolEstradiol3613
Isosorbide Mononitrate ErIsosorbide Mononitrate3513
FluconazoleFluconazole3418
RamiprilRamipril33suppressed
Solifenacin SuccinateSolifenacin Succinate3314
Citalopram HbrCitalopram Hydrobromide32suppressed
Propranolol Hcl ErPropranolol Hcl32suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter32suppressed
ClonazepamClonazepam31suppressed
Memantine HclMemantine Hcl3111
Desvenlafaxine Succinate ErDesvenlafaxine Succinate29suppressed
FenofibrateFenofibrate Nanocrystallized29suppressed
Quetiapine FumarateQuetiapine Fumarate29suppressed
ValacyclovirValacyclovir Hcl2913
AmoxicillinAmoxicillin2819
Naltrexone HclNaltrexone Hcl2712
NitroglycerinNitroglycerin2718
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr26suppressed
Warfarin SodiumWarfarin Sodium26suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med25suppressed
Breo ElliptaFluticasone/Vilanterol25suppressed
JanuviaSitagliptin Phosphate25suppressed
LamotrigineLamotrigine25suppressed
Pioglitazone HclPioglitazone Hcl25suppressed
ValsartanValsartan25suppressed
AzithromycinAzithromycin2420
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2417
Donepezil HclDonepezil Hcl24suppressed
FentanylFentanyl24suppressed
Ibandronate SodiumIbandronate Sodium24suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2415
BumetanideBumetanide23suppressed
MirtazapineMirtazapine23suppressed
Promethazine HclPromethazine Hcl2318
Doxepin HclDoxepin Hcl22suppressed
IrbesartanIrbesartan22suppressed
NaproxenNaproxen22suppressed
Ondansetron OdtOndansetron22suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2217
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog22suppressed
DigoxinDigoxin21suppressed
Oxybutynin ChlorideOxybutynin Chloride21suppressed
Azelastine HclAzelastine Hcl20suppressed
Carbidopa-LevodopaCarbidopa/Levodopa20suppressed
EntrestoSacubitril/Valsartan20suppressed
Oxycodone HclOxycodone Hcl20suppressed
CephalexinCephalexin1913
KetoconazoleKetoconazole1911
LevetiracetamLevetiracetam19suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic1913
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide19suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa18suppressed
Olmesartan MedoxomilOlmesartan Medoxomil18suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters18suppressed
AcyclovirAcyclovir17suppressed
Amitriptyline HclAmitriptyline Hcl17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril17suppressed
Doxycycline HyclateDoxycycline Hyclate1711
FarxigaDapagliflozin Propanediol17suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1714
Sildenafil CitrateSildenafil Citrate17suppressed
TemazepamTemazepam17suppressed
Verapamil ErVerapamil Hcl17suppressed
Zolpidem Tartrate ErZolpidem Tartrate17suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate16suppressed
FenofibrateFenofibrate16suppressed
MethylprednisoloneMethylprednisolone1611
NabumetoneNabumetone16suppressed
NexiumEsomeprazole Magnesium16suppressed
Oxybutynin Chloride ErOxybutynin Chloride16suppressed
Sumatriptan SuccinateSumatriptan Succinate16suppressed
Tresiba Flextouch U-200Insulin Degludec16suppressed
Clindamycin HclClindamycin Hcl1512
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
HumalogInsulin Lispro15suppressed
Humalog Kwikpen U-100Insulin Lispro15suppressed
Testosterone CypionateTestosterone Cypionate15suppressed
CiclopiroxCiclopirox14suppressed
Ciprofloxacin HclCiprofloxacin Hcl14suppressed
HydrocortisoneHydrocortisone14suppressed
Propranolol HclPropranolol Hcl14suppressed
RybelsusSemaglutide14suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
DutasterideDutasteride13suppressed
FebuxostatFebuxostat13suppressed
Incruse ElliptaUmeclidinium Bromide13suppressed
Liothyronine SodiumLiothyronine Sodium13suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended13suppressed
ButransBuprenorphine12suppressed
Clobetasol PropionateClobetasol Propionate12suppressed
Diltiazem HclDiltiazem Hcl12suppressed
LactuloseLactulose12suppressed
Naloxone HclNaloxone Hcl1212
Nurtec OdtRimegepant Sulfate12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
Amlodipine-AtorvastatinAmlodipine/Atorvastatin11suppressed
Colesevelam HclColesevelam Hcl11suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
Diltiazem 24hr ErDiltiazem Hcl11suppressed
Dutasteride-TamsulosinDutasteride/Tamsulosin Hcl11suppressed
Gvoke Hypopen 2-PackGlucagon11suppressed
LevofloxacinLevofloxacin11suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp11suppressed
NystopNystatin11suppressed
Penicillin V PotassiumPenicillin V Potassium11suppressed
PremarinEstrogens, Conjugated11suppressed
Quetiapine Fumarate ErQuetiapine Fumarate11suppressed

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 $39.95 · 2 records Merck Sharp & Dohme LLC CAPVAXIVE, FREESTYLE LIBRE 3, GARDASIL 9
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