Healthcare provider profile · identity verified

Michael Thomas Johnston, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · DALLAS, TX · NPI 1144232265

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 Michael Thomas Johnston, M.D. received $165.17 in general payments during 2025 across 9 reported records.

Novo Nordisk Inc accounted for 63.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 5 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ozempic.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 208 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$165.17

9 reported records · 3 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $104.7063.4%72025
Boston Scientific Corporation Unresolved — no canonical attribution shown $43.1226.1%12025
Amgen Inc. Unresolved — no canonical attribution shown $17.3510.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$165.179

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $76.83 5 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $44.67 3 2025
Source payment records
APOLLO ESG System
Normalized: apollo esg system
Device Boston Scientific Corporation $43.12 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $27.87 2 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $17.35 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
Ozempic
ozempic
2025 Ozempic 2024 208 exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
208 37

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
Atorvastatin CalciumAtorvastatin Calcium674183
Rosuvastatin CalciumRosuvastatin Calcium653178
Amlodipine BesylateAmlodipine Besylate500140
LisinoprilLisinopril32892
Levothyroxine SodiumLevothyroxine Sodium31789
SimvastatinSimvastatin28277
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide26269
Escitalopram OxalateEscitalopram Oxalate25167
Pantoprazole SodiumPantoprazole Sodium24272
Losartan PotassiumLosartan Potassium23968
OmeprazoleOmeprazole22167
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen21432
Metformin Hcl ErMetformin Hcl20959
OzempicSemaglutide20837
GabapentinGabapentin20665
Glipizide ErGlipizide18648
AllopurinolAllopurinol18351
Tamsulosin HclTamsulosin Hcl15751
Metoprolol SuccinateMetoprolol Succinate15442
FarxigaDapagliflozin Propanediol15229
Tramadol HclTramadol Hcl13246
AlprazolamAlprazolam13132
MeloxicamMeloxicam11938
ValsartanValsartan11935
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11831
JardianceEmpagliflozin11725
Zolpidem TartrateZolpidem Tartrate11034
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide10931
Trelegy ElliptaFluticasone/Umeclidin/Vilanter10525
CarvedilolCarvedilol10433
Alendronate SodiumAlendronate Sodium10227
Pravastatin SodiumPravastatin Sodium9727
CelecoxibCelecoxib9526
Metformin HclMetformin Hcl9528
Trazodone HclTrazodone Hcl9525
HydrochlorothiazideHydrochlorothiazide9332
Sertraline HclSertraline Hcl9027
MethocarbamolMethocarbamol8933
Montelukast SodiumMontelukast Sodium8928
Fluticasone PropionateFluticasone Propionate8828
EliquisApixaban8217
Venlafaxine Hcl ErVenlafaxine Hcl7817
EzetimibeEzetimibe7721
Albuterol Sulfate HfaAlbuterol Sulfate7424
Nifedipine ErNifedipine7319
ClopidogrelClopidogrel Bisulfate6722
FenofibrateFenofibrate Nanocrystallized6215
ClonazepamClonazepam5820
Metoprolol TartrateMetoprolol Tartrate5716
AtenololAtenolol5614
Esomeprazole MagnesiumEsomeprazole Magnesium5213
Citalopram HbrCitalopram Hydrobromide5114
EszopicloneEszopiclone4911
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst4934
Potassium ChloridePotassium Chloride4717
Lantus SolostarInsulin Glargine,hum.Rec.Anlog4613
SynthroidLevothyroxine Sodium4511
DiazepamDiazepam4312
Duloxetine HclDuloxetine Hcl41suppressed
Fluoxetine HclFluoxetine Hcl41suppressed
PregabalinPregabalin4112
XareltoRivaroxaban38suppressed
AzithromycinAzithromycin3634
Bupropion XlBupropion Hcl3611
MounjaroTirzepatide36suppressed
Olmesartan MedoxomilOlmesartan Medoxomil36suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide36suppressed
FurosemideFurosemide3216
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid32suppressed
Janumet XrSitagliptin Phos/Metformin Hcl31suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril30suppressed
EstradiolEstradiol30suppressed
Hydroxyzine HclHydroxyzine Hcl29suppressed
JanuviaSitagliptin Phosphate29suppressed
MethylprednisoloneMethylprednisolone2825
Oxybutynin ChlorideOxybutynin Chloride28suppressed
IrbesartanIrbesartan27suppressed
Tresiba Flextouch U-200Insulin Degludec27suppressed
LorazepamLorazepam26suppressed
PaxlovidNirmatrelvir/Ritonavir2624
TemazepamTemazepam25suppressed
ValacyclovirValacyclovir Hcl2415
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone23suppressed
Azelastine HclAzelastine Hcl23suppressed
Breo ElliptaFluticasone/Vilanterol23suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2318
TrulicityDulaglutide22suppressed
Benazepril HclBenazepril Hcl21suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine21suppressed
Donepezil HclDonepezil Hcl21suppressed
MirtazapineMirtazapine21suppressed
TorsemideTorsemide21suppressed
Doxazosin MesylateDoxazosin Mesylate20suppressed
Acetaminophen-CodeineAcetaminophen With Codeine19suppressed
FinasterideFinasteride19suppressed
Hydralazine HclHydralazine Hcl19suppressed
Levemir FlexpenInsulin Detemir19suppressed
Ondansetron HclOndansetron Hcl19suppressed
SpironolactoneSpironolactone19suppressed
Amitriptyline HclAmitriptyline Hcl18suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1817
FamotidineFamotidine18suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen18suppressed
PrednisonePrednisone1817
Sildenafil CitrateSildenafil Citrate18suppressed
Alfuzosin Hcl ErAlfuzosin Hcl16suppressed
BaclofenBaclofen16suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide16suppressed
Buspirone HclBuspirone Hcl16suppressed
ColchicineColchicine16suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic16suppressed
Ondansetron OdtOndansetron1611
Pioglitazone HclPioglitazone Hcl16suppressed
Propranolol HclPropranolol Hcl16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
Ciprofloxacin HclCiprofloxacin Hcl1514
Tresiba Flextouch U-100Insulin Degludec15suppressed
LovastatinLovastatin14suppressed
Warfarin SodiumWarfarin Sodium14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1312
Amlodipine-ValsartanAmlodipine Besylate/Valsartan12suppressed
AmoxicillinAmoxicillin12suppressed
FenofibrateFenofibrate12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
LansoprazoleLansoprazole12suppressed
LevetiracetamLevetiracetam12suppressed
Memantine HclMemantine Hcl12suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine11suppressed
ChlorthalidoneChlorthalidone11suppressed
Ezetimibe-SimvastatinEzetimibe/Simvastatin11suppressed
FenofibrateFenofibrate,micronized11suppressed
Fenofibric AcidFenofibric Acid (Choline)11suppressed
Glipizide-MetforminGlipizide/Metformin Hcl11suppressed
Ipratropium BromideIpratropium Bromide11suppressed
QuviviqDaridorexant Hcl11suppressed
Ultra-Fine Original Pen NeedlePen Needle, Diabetic11suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic11suppressed

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 $165.17 · 9 records Novo Nordisk Inc APOLLO ESG System, EVENITY, Ozempic, Rybelsus, Wegovy 1
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