Healthcare provider profile · identity verified

Matthew Davis, MD

Family Practice · CYPRESS, CA · NPI 1134148133

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium479144
Amlodipine BesylateAmlodipine Besylate26373
Levothyroxine SodiumLevothyroxine Sodium22470
Losartan PotassiumLosartan Potassium19260
LisinoprilLisinopril16553
OmeprazoleOmeprazole16253
Tamsulosin HclTamsulosin Hcl15248
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14933
SimvastatinSimvastatin14843
Metformin HclMetformin Hcl12141
HydrochlorothiazideHydrochlorothiazide11234
Metoprolol SuccinateMetoprolol Succinate10630
EliquisApixaban10522
GabapentinGabapentin9326
Pantoprazole SodiumPantoprazole Sodium9129
Rosuvastatin CalciumRosuvastatin Calcium8830
Benazepril HclBenazepril Hcl8526
LovastatinLovastatin8422
Metformin Hcl ErMetformin Hcl8427
Zolpidem TartrateZolpidem Tartrate7919
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7322
Pravastatin SodiumPravastatin Sodium6821
AllopurinolAllopurinol6220
FurosemideFurosemide5621
Pioglitazone HclPioglitazone Hcl5416
SynthroidLevothyroxine Sodium5415
LorazepamLorazepam53suppressed
AlprazolamAlprazolam5012
JardianceEmpagliflozin5011
GlipizideGlipizide4817
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4615
Escitalopram OxalateEscitalopram Oxalate4511
Metoprolol TartrateMetoprolol Tartrate4415
CarvedilolCarvedilol4013
Fluticasone PropionateFluticasone Propionate4015
Albuterol Sulfate HfaAlbuterol Sulfate3817
Quetiapine FumarateQuetiapine Fumarate38suppressed
Tramadol HclTramadol Hcl3815
XareltoRivaroxaban36suppressed
Sertraline HclSertraline Hcl3511
FinasterideFinasteride34suppressed
Fluoxetine HclFluoxetine Hcl33suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide33suppressed
ClopidogrelClopidogrel Bisulfate30suppressed
ValsartanValsartan30suppressed
FamotidineFamotidine2913
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid28suppressed
Diclofenac SodiumDiclofenac Sodium27suppressed
Felodipine ErFelodipine27suppressed
Alendronate SodiumAlendronate Sodium26suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide24suppressed
TemazepamTemazepam24suppressed
AtenololAtenolol23suppressed
Duloxetine HclDuloxetine Hcl23suppressed
OzempicSemaglutide23suppressed
Benazepril-HydrochlorothiazideBenazepril/Hydrochlorothiazide22suppressed
EzetimibeEzetimibe22suppressed
MeloxicamMeloxicam22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
PrednisonePrednisone22suppressed
AcyclovirAcyclovir20suppressed
CephalexinCephalexin2018
Diltiazem 24hr Er (Cd)Diltiazem Hcl20suppressed
FenofibrateFenofibrate20suppressed
Morphine Sulfate ErMorphine Sulfate20suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac1919
Citalopram HbrCitalopram Hydrobromide19suppressed
JanuviaSitagliptin Phosphate19suppressed
MirtazapineMirtazapine19suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1816
Trazodone HclTrazodone Hcl18suppressed
BaclofenBaclofen17suppressed
Bupropion XlBupropion Hcl17suppressed
ChlorthalidoneChlorthalidone17suppressed
DiazepamDiazepam17suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Potassium ChloridePotassium Chloride17suppressed
RisperidoneRisperidone17suppressed
Terazosin HclTerazosin Hcl17suppressed
Nifedipine ErNifedipine16suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
ClonazepamClonazepam15suppressed
Glipizide ErGlipizide15suppressed
Ropinirole HclRopinirole Hcl15suppressed
Azelastine HclAzelastine Hcl14suppressed
PregabalinPregabalin14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
LinzessLinaclotide13suppressed
NystatinNystatin13suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
AzithromycinAzithromycin12suppressed
Buspirone HclBuspirone Hcl12suppressed
Diltiazem 24hr ErDiltiazem Hcl12suppressed
Divalproex SodiumDivalproex Sodium12suppressed
GlimepirideGlimepiride12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Verapamil SrVerapamil Hcl12suppressed
Bupropion Hcl SrBupropion Hcl11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
Donepezil HclDonepezil Hcl11suppressed
EstradiolEstradiol11suppressed
FenofibrateFenofibrate Nanocrystallized11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1111
Repatha SyringeEvolocumab11suppressed
Sildenafil CitrateSildenafil Citrate11suppressed

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
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