Healthcare provider profile · identity verified

David Humphrey Drenning, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · HUNTSVILLE, AL · NPI 1437129152

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 Humphrey Drenning, M.D. received $1,357.23 in general payments during 2025 across 56 reported records.

ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) accounted for 13.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 23 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Jardiance.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Brilinta by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 52 claims for Farxiga by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 49 claims for Jardiance by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 166 claims for Entresto by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 411 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,357.23

56 reported records · 18 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
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) Unresolved — no canonical attribution shown $181.1713.3%52025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $158.4411.7%82025
PFIZER INC. Unresolved — no canonical attribution shown $139.1210.2%72025
Boston Scientific Corporation Unresolved — no canonical attribution shown $128.449.5%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $89.926.6%52025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $87.746.5%42025
United Therapeutics Corporation Unresolved — no canonical attribution shown $86.776.4%32025
Amgen Inc. Unresolved — no canonical attribution shown $65.144.8%42025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$61.924.6%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $57.764.3%32025
Esperion Therapeutics, Inc. Unresolved — no canonical attribution shown $57.004.2%22025
Abbott Laboratories Unresolved — no canonical attribution shown $52.223.9%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $45.483.4%22025
ABIOMED Unresolved — no canonical attribution shown $44.403.3%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $37.342.8%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $30.362.2%12025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $18.051.3%12025
Recor Medical Inc Unresolved — no canonical attribution shown $15.961.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,357.2356

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
LifeVest
Normalized: lifevest
Device ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $181.17 5 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $158.44 8 2025
Source payment records
AVVIGO Guidance System
Normalized: avvigo guidance system
Device Boston Scientific Corporation $100.88 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $89.92 5 2025
Source payment records
EVKEEZA
Normalized: evkeeza
Biological Regeneron Healthcare Solutions, Inc. $87.74 4 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $81.70 4 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $65.14 4 2025
Source payment records
ONYX FRONTIER
Normalized: onyx frontier
Device Medtronic, Inc. $61.92 2 2025
Source payment records
Orenitram
Normalized: orenitram
Drug United Therapeutics Corporation $59.30 2 2025
Source payment records
Remodulin
Normalized: remodulin
Drug United Therapeutics Corporation $59.30 2 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $57.76 3 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $57.42 3 2025
Source payment records
NEXLETOL
Normalized: nexletol
Drug Esperion Therapeutics, Inc. $57.00 2 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $45.48 2 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $37.34 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $30.36 1 2025
Source payment records
RESONATE EL ICD VR
Normalized: resonate el icd vr
Device Boston Scientific Corporation $27.56 1 2025
Source payment records
Tyvaso
Normalized: tyvaso
Drug United Therapeutics Corporation $27.47 1 2025
Source payment records
GALLANT
Normalized: gallant
Device Abbott Laboratories $27.33 1 2025
Source payment records
OPTIS
Normalized: optis
Device Abbott Laboratories $24.89 1 2025
Source payment records
Adempas
Normalized: adempas
Drug Bayer Healthcare Pharmaceuticals Inc. $19.75 1 2025
Source payment records
AMVUTTRA
Normalized: amvuttra
Drug Alnylam Pharmaceuticals Inc. $18.05 1 2025
Source payment records
Paradise Ultrasound Renal Denervation System
Normalized: paradise ultrasound renal denervation system
Device Recor Medical Inc $15.96 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
ELIQUIS
eliquis
2025 Eliquis 2024 411 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 49 exact normalized Medicare Part D

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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
20 11
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
52 16
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
49 18
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
166 40
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
411 96

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
Metoprolol SuccinateMetoprolol Succinate588207
EliquisApixaban41196
CarvedilolCarvedilol372112
Atorvastatin CalciumAtorvastatin Calcium359125
Rosuvastatin CalciumRosuvastatin Calcium356128
SpironolactoneSpironolactone27382
ClopidogrelClopidogrel Bisulfate26791
Amlodipine BesylateAmlodipine Besylate25792
XareltoRivaroxaban17442
EntrestoSacubitril/Valsartan16640
Losartan PotassiumLosartan Potassium12548
LisinoprilLisinopril10938
Repatha SureclickEvolocumab10621
HydrochlorothiazideHydrochlorothiazide10332
Isosorbide Mononitrate ErIsosorbide Mononitrate10037
TorsemideTorsemide9536
Amiodarone HclAmiodarone Hcl8330
FurosemideFurosemide8232
Metoprolol TartrateMetoprolol Tartrate7930
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide7323
ValsartanValsartan7129
NitroglycerinNitroglycerin6647
Pravastatin SodiumPravastatin Sodium5416
FarxigaDapagliflozin Propanediol5216
Flecainide AcetateFlecainide Acetate5216
JardianceEmpagliflozin4918
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4816
Nifedipine ErNifedipine4814
Spironolactone-HctzSpironolact/Hydrochlorothiazid4717
DigoxinDigoxin4511
Prasugrel HclPrasugrel Hcl39suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl3713
Potassium ChloridePotassium Chloride3413
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide33suppressed
MultaqDronedarone Hcl31suppressed
EzetimibeEzetimibe30suppressed
IrbesartanIrbesartan28suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters26suppressed
SotalolSotalol Hcl2612
Praluent PenAlirocumab25suppressed
Hydralazine HclHydralazine Hcl23suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide22suppressed
BrilintaTicagrelor2011
Enalapril MaleateEnalapril Maleate16suppressed
Pantoprazole SodiumPantoprazole Sodium16suppressed
TelmisartanTelmisartan15suppressed
Ranolazine ErRanolazine14suppressed
LivaloPitavastatin Calcium13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril12suppressed
Nebivolol HclNebivolol Hcl11suppressed

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 $1,357.23 · 56 records ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) AMVUTTRA, AVVIGO Guidance System, Adempas, ELIQUIS, EVKEEZA, GALLANT, JARDIANCE, Kerendia, LEQVIO, LifeVest, NEXLETOL, ONYX FRONTIER, OPTIS, Orenitram, Paradise Ultrasound Renal Denervation System, REPATHA, RESONATE EL ICD VR, Remodulin, Tyvaso, VERQUVO, VYNDAQEL, WAINUA, Wegovy 5
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