Healthcare provider profile · identity verified

Douglas Adkisson, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · GREENEVILLE, TN · NPI 1902953896

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 Douglas Adkisson, MD received $361.63 in general payments during 2025 across 19 reported records.

Amgen Inc. accounted for 65.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

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 120 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 296 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

$361.63

19 reported records · 5 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
Amgen Inc. Unresolved — no canonical attribution shown $238.1765.9%152025
Abbott Laboratories Unresolved — no canonical attribution shown $79.6422.0%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $15.914.4%12025
PFIZER INC. Unresolved — no canonical attribution shown $15.904.4%12025
Kerecis Limited Unresolved — no canonical attribution shown $12.013.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$361.6319

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
REPATHA
Normalized: repatha
Biological Amgen Inc. $238.17 15 2025
Source payment records
THORATEC HEARTMATE 3 LVAS IMPLANT KIT
Normalized: thoratec heartmate 3 lvas implant kit
Device Abbott Laboratories $79.64 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $15.91 1 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $15.90 1 2025
Source payment records
Kerecis GraftGuide
Normalized: kerecis graftguide
Device Kerecis Limited $12.01 1 2025
Source payment records
Kerecis SurgiClose
Normalized: kerecis surgiclose
Device Kerecis Limited $12.01 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
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
120 31
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
296 70

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 Succinate427140
FurosemideFurosemide382116
Rosuvastatin CalciumRosuvastatin Calcium33796
Atorvastatin CalciumAtorvastatin Calcium32594
Ranolazine ErRanolazine31067
EliquisApixaban29670
ClopidogrelClopidogrel Bisulfate26074
CarvedilolCarvedilol24969
Potassium ChloridePotassium Chloride22978
SpironolactoneSpironolactone21356
Amlodipine BesylateAmlodipine Besylate20558
Isosorbide Mononitrate ErIsosorbide Mononitrate19758
Metoprolol TartrateMetoprolol Tartrate19052
LisinoprilLisinopril15949
Losartan PotassiumLosartan Potassium14945
EntrestoSacubitril/Valsartan12031
HydrochlorothiazideHydrochlorothiazide12033
Repatha SureclickEvolocumab11318
NitroglycerinNitroglycerin10356
XareltoRivaroxaban10020
Pantoprazole SodiumPantoprazole Sodium9426
Diltiazem 24hr Er (Cd)Diltiazem Hcl8729
TorsemideTorsemide8731
Nebivolol HclNebivolol Hcl7726
AlprazolamAlprazolam7615
Nifedipine ErNifedipine7419
Pravastatin SodiumPravastatin Sodium7021
Amiodarone HclAmiodarone Hcl6419
Flecainide AcetateFlecainide Acetate6418
ValsartanValsartan5724
EzetimibeEzetimibe5413
Warfarin SodiumWarfarin Sodium5415
Propranolol HclPropranolol Hcl5312
AtenololAtenolol5013
SimvastatinSimvastatin5013
Verapamil ErVerapamil Hcl5013
BumetanideBumetanide4617
ClonidineClonidine4511
Midodrine HclMidodrine Hcl4315
OmeprazoleOmeprazole4213
ChlorthalidoneChlorthalidone37suppressed
Fludrocortisone AcetateFludrocortisone Acetate3412
Olmesartan MedoxomilOlmesartan Medoxomil34suppressed
Hydralazine HclHydralazine Hcl33suppressed
SotalolSotalol Hcl33suppressed
DiazepamDiazepam30suppressed
Propranolol Hcl ErPropranolol Hcl30suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide30suppressed
Benazepril HclBenazepril Hcl29suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide29suppressed
Labetalol HclLabetalol Hcl29suppressed
FamotidineFamotidine28suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide28suppressed
Bisoprolol FumarateBisoprolol Fumarate27suppressed
Prasugrel HclPrasugrel Hcl27suppressed
Clonidine HclClonidine Hcl26suppressed
Praluent PenAlirocumab23suppressed
Montelukast SodiumMontelukast Sodium21suppressed
BrilintaTicagrelor20suppressed
FarxigaDapagliflozin Propanediol19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide19suppressed
Doxazosin MesylateDoxazosin Mesylate18suppressed
MultaqDronedarone Hcl17suppressed
Sodium Chloride0.9 % Sodium Chloride16suppressed
Tamsulosin HclTamsulosin Hcl16suppressed
DigoxinDigoxin15suppressed
Icosapent EthylIcosapent Ethyl15suppressed
LorazepamLorazepam15suppressed
Albuterol Sulfate HfaAlbuterol Sulfate14suppressed
Isosorbide DinitrateIsosorbide Dinitrate14suppressed
MetolazoneMetolazone14suppressed
MirtazapineMirtazapine14suppressed
RamiprilRamipril14suppressed
TemazepamTemazepam14suppressed
Dilt-XrDiltiazem Hcl13suppressed
Zolpidem TartrateZolpidem Tartrate13suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril12suppressed
Candesartan CilexetilCandesartan Cilexetil12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
FenofibrateFenofibrate Nanocrystallized11suppressed
Guanfacine Hcl ErGuanfacine Hcl11suppressed
IrbesartanIrbesartan11suppressed
PrednisonePrednisone11suppressed
Verapamil SrVerapamil 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 $361.63 · 19 records Amgen Inc. Kerecis GraftGuide, Kerecis SurgiClose, LEQVIO, REPATHA, THORATEC HEARTMATE 3 LVAS IMPLANT KIT, VYNDAQEL 2
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