Healthcare provider profile · identity verified

Derrick Lee Barr

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · VINTON, VA · NPI 1487299400

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 Derrick Lee Barr received $121.81 in general payments during 2025 across 1 reported records.

Otsuka America Pharmaceutical, Inc. accounted for 100.0% of that reported general-payment amount.

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

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

Payment overview · 2025

General Payments

$121.81

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
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $121.81100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$121.811

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
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $121.81 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Amlodipine BesylateAmlodipine Besylate21997
LisinoprilLisinopril18080
Atorvastatin CalciumAtorvastatin Calcium17788
OmeprazoleOmeprazole15484
MeloxicamMeloxicam10771
Metformin HclMetformin Hcl9544
Losartan PotassiumLosartan Potassium9341
Levothyroxine SodiumLevothyroxine Sodium8941
SimvastatinSimvastatin8235
PrednisonePrednisone7769
Rosuvastatin CalciumRosuvastatin Calcium7741
Trazodone HclTrazodone Hcl6839
Tamsulosin HclTamsulosin Hcl6731
FurosemideFurosemide6540
HydrochlorothiazideHydrochlorothiazide6531
AzithromycinAzithromycin6057
Montelukast SodiumMontelukast Sodium5932
Albuterol Sulfate HfaAlbuterol Sulfate5834
Sertraline HclSertraline Hcl5731
GabapentinGabapentin5541
Metformin Hcl ErMetformin Hcl5429
Metoprolol TartrateMetoprolol Tartrate5426
Escitalopram OxalateEscitalopram Oxalate5331
FamotidineFamotidine4829
Fluticasone PropionateFluticasone Propionate4435
Pantoprazole SodiumPantoprazole Sodium4121
Metoprolol SuccinateMetoprolol Succinate3920
AllopurinolAllopurinol3814
Citalopram HbrCitalopram Hydrobromide3816
Pravastatin SodiumPravastatin Sodium3718
AlprazolamAlprazolam3624
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3431
CephalexinCephalexin3432
Alendronate SodiumAlendronate Sodium3312
Buspirone HclBuspirone Hcl3216
Ciprofloxacin HclCiprofloxacin Hcl3228
Triamcinolone AcetonideTriamcinolone Acetonide3224
EliquisApixaban3112
GlimepirideGlimepiride3114
Potassium ChloridePotassium Chloride3118
Cyclobenzaprine HclCyclobenzaprine Hcl3021
AtenololAtenolol2812
Lantus SolostarInsulin Glargine,hum.Rec.Anlog28suppressed
Tizanidine HclTizanidine Hcl2823
CarvedilolCarvedilol2711
BaclofenBaclofen2618
Doxycycline HyclateDoxycycline Hyclate2525
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide2512
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
MirtazapineMirtazapine24suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2317
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2314
FluconazoleFluconazole2216
LorazepamLorazepam2216
Duloxetine HclDuloxetine Hcl2113
Oxybutynin Chloride ErOxybutynin Chloride21suppressed
Zolpidem TartrateZolpidem Tartrate2111
Fluoxetine HclFluoxetine Hcl20suppressed
Tramadol HclTramadol Hcl2015
CelecoxibCelecoxib19suppressed
MounjaroTirzepatide19suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril18suppressed
ClonazepamClonazepam18suppressed
Diclofenac SodiumDiclofenac Sodium1715
Meclizine HclMeclizine Hcl1714
OzempicSemaglutide17suppressed
EzetimibeEzetimibe16suppressed
Pioglitazone HclPioglitazone Hcl16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
ClopidogrelClopidogrel Bisulfate15suppressed
Hydralazine HclHydralazine Hcl15suppressed
JardianceEmpagliflozin1511
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1514
Olmesartan MedoxomilOlmesartan Medoxomil14suppressed
TrulicityDulaglutide14suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
LovastatinLovastatin13suppressed
NitroglycerinNitroglycerin13suppressed
NystatinNystatin13suppressed
Ondansetron OdtOndansetron13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
SucralfateSucralfate13suppressed
AmoxicillinAmoxicillin1211
Benazepril HclBenazepril Hcl12suppressed
Glipizide ErGlipizide12suppressed
Azelastine HclAzelastine Hcl11suppressed
Bupropion XlBupropion Hcl11suppressed
Novolin R FlexpenInsulin Regular, Human11suppressed
Promethazine HclPromethazine Hcl11suppressed
SynthroidLevothyroxine Sodium11suppressed

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 $121.81 · 1 records Otsuka America Pharmaceutical, Inc. REXULTI
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