Healthcare provider profile · identity verified

Kerry Riker, M. D.

Internal Medicine · BANGOR, ME · NPI 1033199591

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
Levothyroxine SodiumLevothyroxine Sodium17448
Rosuvastatin CalciumRosuvastatin Calcium16444
LisinoprilLisinopril15544
Atorvastatin CalciumAtorvastatin Calcium15244
Amlodipine BesylateAmlodipine Besylate14539
Pantoprazole SodiumPantoprazole Sodium11037
GabapentinGabapentin10841
HydrochlorothiazideHydrochlorothiazide10032
Losartan PotassiumLosartan Potassium8927
Metoprolol SuccinateMetoprolol Succinate8418
SimvastatinSimvastatin7417
FurosemideFurosemide6726
EliquisApixaban6118
Trazodone HclTrazodone Hcl6120
Metformin HclMetformin Hcl6018
Fluoxetine HclFluoxetine Hcl5919
Tamsulosin HclTamsulosin Hcl5923
LovastatinLovastatin5614
OmeprazoleOmeprazole5620
ClonazepamClonazepam50suppressed
Paroxetine HclParoxetine Hcl4812
FamotidineFamotidine4713
Duloxetine HclDuloxetine Hcl4512
Isosorbide Mononitrate ErIsosorbide Mononitrate4414
ClopidogrelClopidogrel Bisulfate4311
Fluticasone PropionateFluticasone Propionate4112
CelecoxibCelecoxib4016
CarvedilolCarvedilol3911
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen3912
Metoprolol TartrateMetoprolol Tartrate3815
AtenololAtenolol3712
FinasterideFinasteride3611
Sertraline HclSertraline Hcl36suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3319
AllopurinolAllopurinol33suppressed
ArexvyRsvpref3 Antigen/As01e/Pf3333
Amitriptyline HclAmitriptyline Hcl30suppressed
Felodipine ErFelodipine3011
PregabalinPregabalin3014
Metformin Hcl ErMetformin Hcl29suppressed
Bupropion Hcl SrBupropion Hcl27suppressed
CephalexinCephalexin2721
Cyclobenzaprine HclCyclobenzaprine Hcl2712
AlprazolamAlprazolam26suppressed
PrednisonePrednisone2612
Esomeprazole MagnesiumEsomeprazole Magnesium25suppressed
LorazepamLorazepam25suppressed
Oxybutynin Chloride ErOxybutynin Chloride25suppressed
Potassium ChloridePotassium Chloride2513
Donepezil HclDonepezil Hcl24suppressed
Montelukast SodiumMontelukast Sodium24suppressed
Pravastatin SodiumPravastatin Sodium24suppressed
Enalapril MaleateEnalapril Maleate23suppressed
Zolpidem TartrateZolpidem Tartrate2312
Bupropion XlBupropion Hcl22suppressed
JardianceEmpagliflozin22suppressed
Ropinirole HclRopinirole Hcl22suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen21suppressed
SpironolactoneSpironolactone21suppressed
Escitalopram OxalateEscitalopram Oxalate20suppressed
Memantine Hcl ErMemantine Hcl20suppressed
MethylprednisoloneMethylprednisolone2016
Doxepin HclDoxepin Hcl19suppressed
LevetiracetamLevetiracetam19suppressed
MounjaroTirzepatide19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
Methylphenidate HclMethylphenidate Hcl18suppressed
Terazosin HclTerazosin Hcl18suppressed
Doxazosin MesylateDoxazosin Mesylate17suppressed
SotalolSotalol Hcl17suppressed
Tramadol HclTramadol Hcl17suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
Doxycycline HyclateDoxycycline Hyclate1616
OzempicSemaglutide16suppressed
PaxlovidNirmatrelvir/Ritonavir1616
RybelsusSemaglutide16suppressed
BaclofenBaclofen15suppressed
Breo ElliptaFluticasone/Vilanterol15suppressed
Citalopram HbrCitalopram Hydrobromide15suppressed
DiazepamDiazepam15suppressed
NystatinNystatin15suppressed
SynthroidLevothyroxine Sodium15suppressed
Hydroxyzine HclHydroxyzine Hcl14suppressed
Oxycodone HclOxycodone Hcl1413
Quetiapine FumarateQuetiapine Fumarate14suppressed
Solifenacin SuccinateSolifenacin Succinate14suppressed
CholestyramineCholestyramine (With Sugar)13suppressed
EszopicloneEszopiclone13suppressed
EzetimibeEzetimibe13suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
Advair HfaFluticasone Propion/Salmeterol12suppressed
NitroglycerinNitroglycerin12suppressed
Testosterone CypionateTestosterone Cypionate12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
Verapamil ErVerapamil Hcl12suppressed
AcyclovirAcyclovir11suppressed
AzithromycinAzithromycin1111
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
Fosinopril SodiumFosinopril Sodium11suppressed
Humulin NInsulin Nph Human Isophane11suppressed
TelmisartanTelmisartan11suppressed
TopiramateTopiramate11suppressed
ZaleplonZaleplon11suppressed

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