Healthcare provider profile · identity verified

Bryan K Nerren, M.D.

Internal Medicine · JOHNSON CITY, TN · NPI 1629073861

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
Rosuvastatin CalciumRosuvastatin Calcium469111
Atorvastatin CalciumAtorvastatin Calcium392103
LisinoprilLisinopril30573
Losartan PotassiumLosartan Potassium28262
SpironolactoneSpironolactone27469
OmeprazoleOmeprazole26066
Amlodipine BesylateAmlodipine Besylate21453
Metformin HclMetformin Hcl18545
Pantoprazole SodiumPantoprazole Sodium17045
Levothyroxine SodiumLevothyroxine Sodium16738
Metoprolol SuccinateMetoprolol Succinate15938
Tamsulosin HclTamsulosin Hcl13638
Trazodone HclTrazodone Hcl12530
MeloxicamMeloxicam10927
JardianceEmpagliflozin10517
EliquisApixaban9515
Escitalopram OxalateEscitalopram Oxalate9224
Pravastatin SodiumPravastatin Sodium9024
FurosemideFurosemide8522
AllopurinolAllopurinol7718
Metoprolol TartrateMetoprolol Tartrate7621
Duloxetine HclDuloxetine Hcl7518
Sertraline HclSertraline Hcl7415
Vitamin D2Ergocalciferol (Vitamin D2)7116
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7018
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6916
Metformin Hcl ErMetformin Hcl6416
Potassium ChloridePotassium Chloride6419
PregabalinPregabalin6212
Albuterol Sulfate HfaAlbuterol Sulfate6136
Fluticasone PropionateFluticasone Propionate5924
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5818
Bisoprolol FumarateBisoprolol Fumarate5715
GabapentinGabapentin55suppressed
HydrochlorothiazideHydrochlorothiazide5411
EzetimibeEzetimibe5311
Warfarin SodiumWarfarin Sodium5311
SimvastatinSimvastatin4411
Alendronate SodiumAlendronate Sodium4114
Propranolol Hcl ErPropranolol Hcl40suppressed
FamotidineFamotidine36suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro36suppressed
PrednisonePrednisone3626
Ropinirole HclRopinirole Hcl34suppressed
Spironolactone-HctzSpironolact/Hydrochlorothiazid33suppressed
TrulicityDulaglutide33suppressed
RamiprilRamipril31suppressed
ChlorthalidoneChlorthalidone30suppressed
MirtazapineMirtazapine28suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2816
Venlafaxine Hcl ErVenlafaxine Hcl28suppressed
AtenololAtenolol26suppressed
ClopidogrelClopidogrel Bisulfate26suppressed
Bupropion XlBupropion Hcl24suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium24suppressed
Propranolol HclPropranolol Hcl24suppressed
Testosterone CypionateTestosterone Cypionate24suppressed
Solifenacin SuccinateSolifenacin Succinate23suppressed
CelecoxibCelecoxib21suppressed
FenofibrateFenofibrate,micronized21suppressed
Olmesartan MedoxomilOlmesartan Medoxomil21suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl19suppressed
FinasterideFinasteride19suppressed
LansoprazoleLansoprazole18suppressed
Sildenafil CitrateSildenafil Citrate18suppressed
Humalog Kwikpen U-100Insulin Lispro17suppressed
Hydralazine HclHydralazine Hcl17suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1713
Wixela InhubFluticasone Propion/Salmeterol17suppressed
Donepezil HclDonepezil Hcl16suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide15suppressed
Dicyclomine HclDicyclomine Hcl15suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic15suppressed
OzempicSemaglutide15suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl15suppressed
SynthroidLevothyroxine Sodium15suppressed
Benazepril HclBenazepril Hcl14suppressed
Clonidine HclClonidine Hcl14suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide14suppressed
NitroglycerinNitroglycerin14suppressed
Calcitonin-SalmonCalcitonin,salmon,synthetic13suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1312
IrbesartanIrbesartan13suppressed
Levemir FlexpenInsulin Detemir13suppressed
Meclizine HclMeclizine Hcl13suppressed
Midodrine HclMidodrine Hcl13suppressed
NaproxenNaproxen13suppressed
Perphenazine-AmitriptylinePerphenazine/Amitriptyline Hcl13suppressed
Buspirone HclBuspirone Hcl12suppressed
ClonazepamClonazepam12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
Memantine HclMemantine Hcl12suppressed
Pen NeedlePen Needle, Diabetic12suppressed
Raloxifene HclRaloxifene Hcl12suppressed
Tizanidine HclTizanidine Hcl12suppressed
Tramadol HclTramadol Hcl12suppressed
CarvedilolCarvedilol11suppressed
DiazepamDiazepam11suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
Hydroxyzine HclHydroxyzine 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
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