Healthcare provider profile · identity verified

Katherine Ann Keith, M.D.

Internal Medicine · BERRIEN SPRINGS, MI · NPI 1104806116

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 Sodium35690
Atorvastatin CalciumAtorvastatin Calcium16556
Amlodipine BesylateAmlodipine Besylate15651
Liothyronine SodiumLiothyronine Sodium13236
Rosuvastatin CalciumRosuvastatin Calcium13241
Olmesartan MedoxomilOlmesartan Medoxomil12737
Albuterol Sulfate HfaAlbuterol Sulfate12242
OmeprazoleOmeprazole12136
AlprazolamAlprazolam11620
Losartan PotassiumLosartan Potassium10336
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen9918
Fluticasone PropionateFluticasone Propionate9537
GabapentinGabapentin8423
Metformin HclMetformin Hcl7726
MounjaroTirzepatide7518
LisinoprilLisinopril7327
Metoprolol SuccinateMetoprolol Succinate6925
SynthroidLevothyroxine Sodium6313
Pantoprazole SodiumPantoprazole Sodium6223
CarvedilolCarvedilol6020
Duloxetine HclDuloxetine Hcl6016
SimvastatinSimvastatin5618
Escitalopram OxalateEscitalopram Oxalate5515
Montelukast SodiumMontelukast Sodium5516
Trazodone HclTrazodone Hcl5519
FurosemideFurosemide5325
Tramadol HclTramadol Hcl5112
Alendronate SodiumAlendronate Sodium4815
EstradiolEstradiol4816
HydrochlorothiazideHydrochlorothiazide4820
SpironolactoneSpironolactone4812
PregabalinPregabalin4711
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide4617
OzempicSemaglutide4614
Acetaminophen-CodeineAcetaminophen With Codeine45suppressed
ChlorthalidoneChlorthalidone4514
Buspirone HclBuspirone Hcl4411
PrednisonePrednisone4327
Cyclobenzaprine HclCyclobenzaprine Hcl4012
Tamsulosin HclTamsulosin Hcl4013
FenofibrateFenofibrate3914
Venlafaxine Hcl ErVenlafaxine Hcl39suppressed
AripiprazoleAripiprazole37suppressed
EliquisApixaban3712
Quetiapine FumarateQuetiapine Fumarate37suppressed
GlimepirideGlimepiride36suppressed
Metoprolol TartrateMetoprolol Tartrate3617
Zolpidem TartrateZolpidem Tartrate35suppressed
Sertraline HclSertraline Hcl3411
Potassium ChloridePotassium Chloride3311
Trelegy ElliptaFluticasone/Umeclidin/Vilanter32suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine31suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine31suppressed
Doxycycline HyclateDoxycycline Hyclate3125
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3025
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen30suppressed
Tizanidine HclTizanidine Hcl30suppressed
EzetimibeEzetimibe29suppressed
FentanylFentanyl28suppressed
ClopidogrelClopidogrel Bisulfate27suppressed
Morphine Sulfate ErMorphine Sulfate27suppressed
ProgesteroneProgesterone, Micronized27suppressed
AllopurinolAllopurinol26suppressed
Ondansetron HclOndansetron Hcl26suppressed
Armour ThyroidThyroid,pork25suppressed
Candesartan CilexetilCandesartan Cilexetil25suppressed
BaclofenBaclofen24suppressed
ClonazepamClonazepam24suppressed
LorazepamLorazepam24suppressed
MyrbetriqMirabegron24suppressed
Nurtec OdtRimegepant Sulfate24suppressed
Citalopram HbrCitalopram Hydrobromide23suppressed
Ciprofloxacin HclCiprofloxacin Hcl2220
LansoprazoleLansoprazole22suppressed
NystatinNystatin2212
Donepezil HclDonepezil Hcl21suppressed
FamotidineFamotidine21suppressed
JardianceEmpagliflozin21suppressed
LinzessLinaclotide21suppressed
MeloxicamMeloxicam21suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2020
CephalexinCephalexin2020
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride20suppressed
Ropinirole HclRopinirole Hcl20suppressed
Solifenacin SuccinateSolifenacin Succinate20suppressed
Bupropion XlBupropion Hcl19suppressed
CreonLipase/Protease/Amylase19suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium19suppressed
LubiprostoneLubiprostone19suppressed
Np ThyroidThyroid,pork19suppressed
OxycontinOxycodone Hcl19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
Propranolol Hcl ErPropranolol Hcl19suppressed
Triamcinolone AcetonideTriamcinolone Acetonide19suppressed
Bupropion Hcl SrBupropion Hcl18suppressed
LevoxylLevothyroxine Sodium18suppressed
MethocarbamolMethocarbamol18suppressed
Sumatriptan SuccinateSumatriptan Succinate18suppressed
ValacyclovirValacyclovir Hcl18suppressed
Warfarin SodiumWarfarin Sodium18suppressed
AtenololAtenolol17suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim17suppressed
TemazepamTemazepam17suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
Azelastine HclAzelastine Hcl1611
Candesartan-HydrochlorothiazidCandesartan/Hydrochlorothiazid16suppressed
TorsemideTorsemide16suppressed
TrulicityDulaglutide16suppressed
Verapamil ErVerapamil Hcl16suppressed
Verapamil SrVerapamil Hcl16suppressed
FluconazoleFluconazole15suppressed
LoperamideLoperamide Hcl15suppressed
Paroxetine HclParoxetine Hcl15suppressed
Terbinafine HclTerbinafine Hcl15suppressed
ValsartanValsartan15suppressed
FenofibrateFenofibrate Nanocrystallized14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
Promethazine HclPromethazine Hcl14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
AzithromycinAzithromycin1313
DiazepamDiazepam13suppressed
GlipizideGlipizide13suppressed
LidocaineLidocaine13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
MirtazapineMirtazapine13suppressed
Morphine SulfateMorphine Sulfate13suppressed
NitroglycerinNitroglycerin13suppressed
Oxycodone HclOxycodone Hcl13suppressed
Raloxifene HclRaloxifene Hcl13suppressed
Diclofenac SodiumDiclofenac Sodium12suppressed
KetoconazoleKetoconazole12suppressed
Ondansetron OdtOndansetron12suppressed
RizatriptanRizatriptan Benzoate12suppressed
EszopicloneEszopiclone11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
Metformin Hcl ErMetformin Hcl11suppressed
Rabeprazole SodiumRabeprazole Sodium11suppressed
Theophylline ErTheophylline Anhydrous11suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid11suppressed

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