Healthcare provider profile · identity verified

David Michael Brennan, FNP-C

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · MESA, AZ · NPI 1174205264

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 David Michael Brennan, FNP-C received $86.92 in general payments during 2025 across 5 reported records.

Abbott Laboratories accounted for 59.5% 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

$86.92

5 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
Abbott Laboratories Unresolved — no canonical attribution shown $51.6959.5%32025
Exact Sciences Corporation Unresolved — no canonical attribution shown $35.2340.5%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$86.925

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
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $35.23 2 2025
Source payment records
PROCLAIM
Normalized: proclaim
Device Abbott Laboratories $33.19 2 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $18.50 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
Levothyroxine SodiumLevothyroxine Sodium12650
Atorvastatin CalciumAtorvastatin Calcium11858
GabapentinGabapentin10745
Amlodipine BesylateAmlodipine Besylate9545
LisinoprilLisinopril9340
Losartan PotassiumLosartan Potassium9240
OmeprazoleOmeprazole8737
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8318
Zolpidem TartrateZolpidem Tartrate7717
Metformin HclMetformin Hcl7637
MethylprednisoloneMethylprednisolone7163
Tizanidine HclTizanidine Hcl6628
Albuterol Sulfate HfaAlbuterol Sulfate6331
Oxycodone HclOxycodone Hcl5413
Trazodone HclTrazodone Hcl5419
AlprazolamAlprazolam5015
Rosuvastatin CalciumRosuvastatin Calcium5024
Tamsulosin HclTamsulosin Hcl5024
HydrochlorothiazideHydrochlorothiazide4922
Tramadol HclTramadol Hcl4617
Metoprolol TartrateMetoprolol Tartrate4324
GlipizideGlipizide4014
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3834
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen38suppressed
FurosemideFurosemide3716
MeloxicamMeloxicam3518
ClopidogrelClopidogrel Bisulfate3413
Metoprolol SuccinateMetoprolol Succinate3415
Pantoprazole SodiumPantoprazole Sodium3417
Duloxetine HclDuloxetine Hcl3311
FamotidineFamotidine3116
Fluticasone PropionateFluticasone Propionate3120
SimvastatinSimvastatin3112
AzithromycinAzithromycin3029
EliquisApixaban3012
Ondansetron HclOndansetron Hcl2915
EzetimibeEzetimibe2811
Morphine Sulfate ErMorphine Sulfate26suppressed
MounjaroTirzepatide26suppressed
PregabalinPregabalin26suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2521
Sertraline HclSertraline Hcl2515
Testosterone CypionateTestosterone Cypionate25suppressed
DiazepamDiazepam23suppressed
Montelukast SodiumMontelukast Sodium2212
FentanylFentanyl21suppressed
Metformin Hcl ErMetformin Hcl21suppressed
Nifedipine ErNifedipine21suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2118
Triamcinolone AcetonideTriamcinolone Acetonide2014
Dicyclomine HclDicyclomine Hcl18suppressed
Escitalopram OxalateEscitalopram Oxalate18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
BaclofenBaclofen17suppressed
ClonazepamClonazepam17suppressed
Doxycycline HyclateDoxycycline Hyclate1713
OzempicSemaglutide17suppressed
LamotrigineLamotrigine16suppressed
MupirocinMupirocin1611
Potassium ChloridePotassium Chloride16suppressed
Prochlorperazine MaleateProchlorperazine Maleate16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
Alendronate SodiumAlendronate Sodium15suppressed
BumetanideBumetanide15suppressed
Hydralazine HclHydralazine Hcl15suppressed
Oxybutynin ChlorideOxybutynin Chloride15suppressed
Oxybutynin Chloride ErOxybutynin Chloride15suppressed
SpironolactoneSpironolactone15suppressed
TrulicityDulaglutide15suppressed
AllopurinolAllopurinol14suppressed
Citalopram HbrCitalopram Hydrobromide14suppressed
Humalog Kwikpen U-100Insulin Lispro14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
LorazepamLorazepam14suppressed
Wixela InhubFluticasone Propion/Salmeterol14suppressed
PrednisonePrednisone13suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
FarxigaDapagliflozin Propanediol12suppressed
Hydromorphone HclHydromorphone Hcl12suppressed
Benazepril HclBenazepril Hcl11suppressed
Hydroxyzine HclHydroxyzine Hcl11suppressed
IbuprofenIbuprofen11suppressed
InvokanaCanagliflozin11suppressed
LidocaineLidocaine11suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic11suppressed
Ondansetron OdtOndansetron11suppressed
SymbicortBudesonide/Formoterol 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 $86.92 · 5 records Abbott Laboratories Cologuard Collection Kit, FREESTYLE LIBRE 3, PROCLAIM
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