Healthcare provider profile · identity verified

Matthew Paul Wonnacott, MD

Allopathic & Osteopathic Physicians|Family Medicine · SOUTH LAKE TAHOE, CA · NPI 1144214495

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 Matthew Paul Wonnacott, MD received $28.73 in general payments during 2025 across 1 reported records.

ABBVIE INC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Synthroid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$28.73

1 reported records · 1 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
ABBVIE INC. Unresolved — no canonical attribution shown $28.73100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$28.731

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
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $28.73 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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
20 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 Calcium32099
Amlodipine BesylateAmlodipine Besylate31595
Levothyroxine SodiumLevothyroxine Sodium29182
Losartan PotassiumLosartan Potassium25980
GabapentinGabapentin23055
EliquisApixaban20723
OmeprazoleOmeprazole16160
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16044
LisinoprilLisinopril15956
Tamsulosin HclTamsulosin Hcl14044
Rosuvastatin CalciumRosuvastatin Calcium13861
Metoprolol SuccinateMetoprolol Succinate13637
Trazodone HclTrazodone Hcl13143
HydrochlorothiazideHydrochlorothiazide10536
SimvastatinSimvastatin10042
Duloxetine HclDuloxetine Hcl9824
Albuterol Sulfate HfaAlbuterol Sulfate9636
Metformin Hcl ErMetformin Hcl9339
Sertraline HclSertraline Hcl9025
Pantoprazole SodiumPantoprazole Sodium8915
FurosemideFurosemide8423
Oxycodone HclOxycodone Hcl7020
Metformin HclMetformin Hcl6833
Donepezil HclDonepezil Hcl6312
AllopurinolAllopurinol6226
Fluticasone PropionateFluticasone Propionate5926
Tramadol HclTramadol Hcl5927
Escitalopram OxalateEscitalopram Oxalate5819
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5620
FinasterideFinasteride5514
Potassium ChloridePotassium Chloride5319
IbuprofenIbuprofen4818
Alendronate SodiumAlendronate Sodium4517
Fluoxetine HclFluoxetine Hcl4412
Amitriptyline HclAmitriptyline Hcl4318
MeloxicamMeloxicam4315
Metoprolol TartrateMetoprolol Tartrate4315
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen41suppressed
ClopidogrelClopidogrel Bisulfate40suppressed
OzempicSemaglutide40suppressed
Paroxetine HclParoxetine Hcl39suppressed
Venlafaxine Hcl ErVenlafaxine Hcl39suppressed
DiazepamDiazepam3813
AbrysvoRsv Vacc, Pref A And Pref B/Pf3636
Zolpidem TartrateZolpidem Tartrate3614
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3513
ValsartanValsartan34suppressed
MyrbetriqMirabegron32suppressed
PrednisonePrednisone3220
AcyclovirAcyclovir31suppressed
GlipizideGlipizide31suppressed
Klor-Con 10Potassium Chloride31suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate29suppressed
GemtesaVibegron28suppressed
CarvedilolCarvedilol2711
Cyclobenzaprine HclCyclobenzaprine Hcl2712
Pioglitazone HclPioglitazone Hcl2712
SpironolactoneSpironolactone27suppressed
Diltiazem 24hr ErDiltiazem Hcl26suppressed
TrulicityDulaglutide26suppressed
Memantine Hcl ErMemantine Hcl25suppressed
AlprazolamAlprazolam2411
Montelukast SodiumMontelukast Sodium24suppressed
Carbidopa-LevodopaCarbidopa/Levodopa23suppressed
Citalopram HbrCitalopram Hydrobromide23suppressed
FamotidineFamotidine23suppressed
JardianceEmpagliflozin23suppressed
LorazepamLorazepam23suppressed
Memantine HclMemantine Hcl22suppressed
Pravastatin SodiumPravastatin Sodium22suppressed
Tizanidine HclTizanidine Hcl22suppressed
BaclofenBaclofen21suppressed
Bupropion XlBupropion Hcl21suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol21suppressed
NaproxenNaproxen21suppressed
Quetiapine FumarateQuetiapine Fumarate20suppressed
SynthroidLevothyroxine Sodium20suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid20suppressed
PregabalinPregabalin19suppressed
CelecoxibCelecoxib18suppressed
Hydromorphone HclHydromorphone Hcl18suppressed
LantusInsulin Glargine,hum.Rec.Anlog18suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog18suppressed
LevetiracetamLevetiracetam18suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1712
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat17suppressed
AtenololAtenolol16suppressed
NystatinNystatin16suppressed
Ondansetron OdtOndansetron1611
Ropinirole HclRopinirole Hcl16suppressed
Acetaminophen-CodeineAcetaminophen With Codeine15suppressed
EstradiolEstradiol15suppressed
EzetimibeEzetimibe15suppressed
Terbinafine HclTerbinafine Hcl15suppressed
CephalexinCephalexin14suppressed
Methylphenidate HclMethylphenidate Hcl14suppressed
Olmesartan MedoxomilOlmesartan Medoxomil14suppressed
PaxlovidNirmatrelvir/Ritonavir1414
Promethazine HclPromethazine Hcl14suppressed
Wixela InhubFluticasone Propion/Salmeterol14suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
Divalproex SodiumDivalproex Sodium13suppressed
FluconazoleFluconazole13suppressed
LatanoprostLatanoprost13suppressed
ValacyclovirValacyclovir Hcl13suppressed
Bisoprolol FumarateBisoprolol Fumarate12suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst12suppressed
Ondansetron HclOndansetron Hcl12suppressed
Prednisolone AcetatePrednisolone Acetate12suppressed
Rabeprazole SodiumRabeprazole Sodium12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
XareltoRivaroxaban12suppressed
BelbucaBuprenorphine Hcl11suppressed
ChlorthalidoneChlorthalidone11suppressed
DutasterideDutasteride11suppressed
EszopicloneEszopiclone11suppressed
FenofibrateFenofibrate Nanocrystallized11suppressed
LevoxylLevothyroxine Sodium11suppressed
Methenamine HippurateMethenamine Hippurate11suppressed
MirtazapineMirtazapine11suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic11suppressed
Nortriptyline HclNortriptyline Hcl11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide11suppressed
ZolmitriptanZolmitriptan11suppressed

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 $28.73 · 1 records ABBVIE INC. VRAYLAR 1
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