Healthcare provider profile · identity verified

Larry B Roark, NP-C

Nurse Practitioner · MIDDLESBORO, KY · NPI 1437281649

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
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen53970
GabapentinGabapentin45056
Atorvastatin CalciumAtorvastatin Calcium42382
LisinoprilLisinopril28048
Amlodipine BesylateAmlodipine Besylate26652
Metformin HclMetformin Hcl21834
Levothyroxine SodiumLevothyroxine Sodium21434
Albuterol Sulfate HfaAlbuterol Sulfate19945
AlprazolamAlprazolam19922
OmeprazoleOmeprazole19642
Losartan PotassiumLosartan Potassium19437
Pantoprazole SodiumPantoprazole Sodium19234
Fluticasone PropionateFluticasone Propionate15033
MeloxicamMeloxicam14927
FurosemideFurosemide13631
Tizanidine HclTizanidine Hcl13535
SimvastatinSimvastatin13424
Ventolin HfaAlbuterol Sulfate13425
Potassium ChloridePotassium Chloride13232
Metoprolol TartrateMetoprolol Tartrate12526
IbuprofenIbuprofen12325
CelecoxibCelecoxib12122
Tamsulosin HclTamsulosin Hcl10918
AtenololAtenolol10718
Diclofenac SodiumDiclofenac Sodium10626
Metoprolol SuccinateMetoprolol Succinate10221
MounjaroTirzepatide10214
ChlorthalidoneChlorthalidone9922
HydrochlorothiazideHydrochlorothiazide9927
PrednisonePrednisone9151
Montelukast SodiumMontelukast Sodium8716
JanuviaSitagliptin Phosphate8312
Amitriptyline HclAmitriptyline Hcl8112
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride7013
Tramadol HclTramadol Hcl6915
Buspirone HclBuspirone Hcl6813
DiazepamDiazepam66suppressed
NabumetoneNabumetone6217
ClopidogrelClopidogrel Bisulfate6113
Sertraline HclSertraline Hcl6112
AllopurinolAllopurinol57suppressed
Trazodone HclTrazodone Hcl5515
CefdinirCefdinir5342
Bupropion XlBupropion Hcl51suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog51suppressed
Promethazine HclPromethazine Hcl5112
Testosterone CypionateTestosterone Cypionate51suppressed
LinzessLinaclotide4811
Ondansetron OdtOndansetron4827
Pravastatin SodiumPravastatin Sodium47suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl46suppressed
CarvedilolCarvedilol4511
AzithromycinAzithromycin4330
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide43suppressed
Duloxetine HclDuloxetine Hcl42suppressed
GlipizideGlipizide4211
Ropinirole HclRopinirole Hcl41suppressed
Quetiapine FumarateQuetiapine Fumarate39suppressed
Alendronate SodiumAlendronate Sodium38suppressed
ClonazepamClonazepam37suppressed
FamotidineFamotidine37suppressed
LevetiracetamLevetiracetam37suppressed
Zolpidem TartrateZolpidem Tartrate37suppressed
Fluoxetine HclFluoxetine Hcl36suppressed
Glipizide ErGlipizide34suppressed
OzempicSemaglutide3414
Esomeprazole MagnesiumEsomeprazole Magnesium32suppressed
GlimepirideGlimepiride31suppressed
Hydroxyzine HclHydroxyzine Hcl31suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide31suppressed
Combivent RespimatIpratropium/Albuterol Sulfate30suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2922
Donepezil HclDonepezil Hcl29suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate29suppressed
Propranolol HclPropranolol Hcl29suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter29suppressed
AnastrozoleAnastrozole28suppressed
Breo ElliptaFluticasone/Vilanterol28suppressed
Clonidine HclClonidine Hcl28suppressed
Rosuvastatin CalciumRosuvastatin Calcium28suppressed
MethocarbamolMethocarbamol26suppressed
MyrbetriqMirabegron26suppressed
EzetimibeEzetimibe25suppressed
Doxycycline HyclateDoxycycline Hyclate2417
JardianceEmpagliflozin24suppressed
ProgesteroneProgesterone, Micronized24suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid24suppressed
AmoxicillinAmoxicillin2320
Nurtec OdtRimegepant Sulfate23suppressed
Citalopram HbrCitalopram Hydrobromide22suppressed
Doxepin HclDoxepin Hcl22suppressed
Escitalopram OxalateEscitalopram Oxalate22suppressed
Meclizine HclMeclizine Hcl22suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended22suppressed
FluconazoleFluconazole2115
AripiprazoleAripiprazole20suppressed
Dicyclomine HclDicyclomine Hcl20suppressed
Humalog Mix 75-25 KwikpenInsulin Lispro Protamin/Lispro20suppressed
Pioglitazone HclPioglitazone Hcl20suppressed
RizatriptanRizatriptan Benzoate20suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol19suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1914
ValsartanValsartan19suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate18suppressed
EliquisApixaban18suppressed
LorazepamLorazepam18suppressed
NystatinNystatin18suppressed
Ondansetron HclOndansetron Hcl18suppressed
PregabalinPregabalin18suppressed
SymbicortBudesonide/Formoterol Fumarate18suppressed
TopiramateTopiramate18suppressed
Terazosin HclTerazosin Hcl17suppressed
FenofibrateFenofibrate Nanocrystallized16suppressed
GlyburideGlyburide16suppressed
SynthroidLevothyroxine Sodium16suppressed
Triamcinolone AcetonideTriamcinolone Acetonide16suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr15suppressed
Azelastine HclAzelastine Hcl15suppressed
BaclofenBaclofen15suppressed
Ciprofloxacin HclCiprofloxacin Hcl1511
Clindamycin HclClindamycin Hcl1511
DexamethasoneDexamethasone15suppressed
OlanzapineOlanzapine15suppressed
CephalexinCephalexin1411
RamelteonRamelteon14suppressed
Ultra-Fine Micro Pen NeedlePen Needle, Diabetic14suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog13suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine13suppressed
LevofloxacinLevofloxacin13suppressed
Spiriva RespimatTiotropium Bromide13suppressed
TorsemideTorsemide13suppressed
Verapamil Er PmVerapamil Hcl13suppressed
Hydralazine HclHydralazine Hcl12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Paroxetine HclParoxetine Hcl12suppressed
Penicillin V PotassiumPenicillin V Potassium12suppressed
PrimidonePrimidone12suppressed
SucralfateSucralfate12suppressed
Venlafaxine HclVenlafaxine Hcl12suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine11suppressed
LidocaineLidocaine11suppressed
Midodrine HclMidodrine Hcl11suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp11suppressed
SpironolactoneSpironolactone11suppressed
Warfarin SodiumWarfarin 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
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