Healthcare provider profile · identity verified

William Wesson Nields, M.D.

Allopathic & Osteopathic Physicians|General Practice · JACKSONVILLE, FL · NPI 1972587848

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 Wesson Nields, M.D. received $39.17 in general payments during 2025 across 2 reported records.

C2N Diagnostics, LLC accounted for 65.6% of that reported general-payment amount.

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

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

Payment overview · 2025

General Payments

$39.17

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
C2N Diagnostics, LLC Unresolved — no canonical attribution shown $25.6965.6%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $13.4834.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$39.172

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
PRECIVITYAD2
Normalized: precivityad2
Device C2N Diagnostics, LLC $25.69 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $13.48 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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
Rosuvastatin CalciumRosuvastatin Calcium23289
Amlodipine BesylateAmlodipine Besylate16353
Levothyroxine SodiumLevothyroxine Sodium16360
Losartan PotassiumLosartan Potassium11740
LisinoprilLisinopril10537
LactuloseLactulose7254
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters6921
ProgesteroneProgesterone, Micronized6827
Metformin HclMetformin Hcl6024
GabapentinGabapentin5519
Trazodone HclTrazodone Hcl5015
Duloxetine HclDuloxetine Hcl4711
Metoprolol SuccinateMetoprolol Succinate4517
CarvedilolCarvedilol4216
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen41suppressed
Montelukast SodiumMontelukast Sodium4111
HydrochlorothiazideHydrochlorothiazide4013
JardianceEmpagliflozin38suppressed
Tamsulosin HclTamsulosin Hcl3817
Albuterol Sulfate HfaAlbuterol Sulfate3412
AlprazolamAlprazolam3411
Oxycodone HclOxycodone Hcl33suppressed
Tramadol HclTramadol Hcl3114
Armour ThyroidThyroid,pork30suppressed
Liothyronine SodiumLiothyronine Sodium3011
OmeprazoleOmeprazole3016
Testosterone CypionateTestosterone Cypionate3015
ClonazepamClonazepam28suppressed
EliquisApixaban28suppressed
FamotidineFamotidine2712
Nifedipine ErNifedipine26suppressed
Atorvastatin CalciumAtorvastatin Calcium2412
ClopidogrelClopidogrel Bisulfate24suppressed
NystatinNystatin2420
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl23suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)22suppressed
EstradiolEstradiol22suppressed
FenofibrateFenofibrate Nanocrystallized22suppressed
Hydralazine HclHydralazine Hcl20suppressed
Metoprolol TartrateMetoprolol Tartrate20suppressed
Pantoprazole SodiumPantoprazole Sodium20suppressed
AllopurinolAllopurinol19suppressed
OzempicSemaglutide19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
Tizanidine HclTizanidine Hcl18suppressed
Estradiol (Twice Weekly)Estradiol17suppressed
Np ThyroidThyroid,pork17suppressed
ValsartanValsartan17suppressed
Clonidine HclClonidine Hcl16suppressed
Escitalopram OxalateEscitalopram Oxalate16suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
Potassium ChloridePotassium Chloride15suppressed
Ropinirole HclRopinirole Hcl15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
ValacyclovirValacyclovir Hcl15suppressed
FenofibrateFenofibrate14suppressed
Fluticasone PropionateFluticasone Propionate14suppressed
FurosemideFurosemide14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
IbuprofenIbuprofen13suppressed
LorazepamLorazepam13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
FinasterideFinasteride12suppressed
JanuviaSitagliptin Phosphate12suppressed
Metformin Hcl ErMetformin Hcl12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
Pioglitazone HclPioglitazone Hcl12suppressed
PregabalinPregabalin12suppressed
Alcohol PadsAlcohol Antiseptic Pads11suppressed
SymbicortBudesonide/Formoterol Fumarate11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed
Tresiba Flextouch U-100Insulin Degludec11suppressed

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 $39.17 · 2 records C2N Diagnostics, LLC Cologuard Collection Kit, PRECIVITYAD2
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