Healthcare provider profile · identity verified

John M Byrnes, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · SMYRNA, TN · NPI 1700846334

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 John M Byrnes, M.D. received $259.88 in general payments during 2025 across 11 reported records.

Indivior Inc. accounted for 21.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

Astellas Pharma US 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 Myrbetriq as an associated drug or biological on 16 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Myrbetriq by this doctor in 2024.

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

Payment overview · 2025

General Payments

$259.88

11 reported records · 9 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
Indivior Inc. Unresolved — no canonical attribution shown $55.8821.5%22025
Exact Sciences Corporation Unresolved — no canonical attribution shown $42.4216.3%22025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $33.1412.8%12025
Inspire Medical Systems, Inc. Unresolved — no canonical attribution shown $31.2412.0%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $21.108.1%12025
Antares Pharma, Inc. Unresolved — no canonical attribution shown $20.938.1%12025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.287.4%12025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $19.137.4%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $16.766.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$259.8811

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
SUBLOCADE
Normalized: sublocade
Drug Indivior Inc. $55.88 2 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $42.42 2 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $33.14 1 2025
Source payment records
INSPIRE
Normalized: inspire
Device Inspire Medical Systems, Inc. $31.24 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $21.10 1 2025
Source payment records
XYOSTED
Normalized: xyosted
Drug Antares Pharma, Inc. $20.93 1 2025
Source payment records
AZMIRO
Normalized: azmiro
Drug Azurity Pharmaceuticals, Inc. $19.28 1 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $19.13 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $16.76 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $16.76 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Myrbetriq
open payments reported associated product
CMS Open Payments — General Payments
16 supporting records · 16 recipient NPIs · example record 1238599014
Myrbetriq · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS

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 Sodium35552
OmeprazoleOmeprazole21227
Amlodipine BesylateAmlodipine Besylate17029
SimvastatinSimvastatin14822
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl12620
LisinoprilLisinopril11032
FamotidineFamotidine10711
Tamsulosin HclTamsulosin Hcl10616
Atorvastatin CalciumAtorvastatin Calcium10328
Rosuvastatin CalciumRosuvastatin Calcium9122
Metformin HclMetformin Hcl7319
LamotrigineLamotrigine70suppressed
FurosemideFurosemide5812
Losartan PotassiumLosartan Potassium52suppressed
TopiramateTopiramate52suppressed
Pantoprazole SodiumPantoprazole Sodium49suppressed
Quetiapine FumarateQuetiapine Fumarate49suppressed
Zolpidem TartrateZolpidem Tartrate47suppressed
Metoprolol TartrateMetoprolol Tartrate42suppressed
OxcarbazepineOxcarbazepine42suppressed
Pravastatin SodiumPravastatin Sodium42suppressed
MeloxicamMeloxicam4111
EliquisApixaban39suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended39suppressed
LinzessLinaclotide38suppressed
Escitalopram OxalateEscitalopram Oxalate35suppressed
LatanoprostLatanoprost35suppressed
LevetiracetamLevetiracetam35suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium32suppressed
MirtazapineMirtazapine32suppressed
MyrbetriqMirabegron32suppressed
Propranolol HclPropranolol Hcl32suppressed
AlprazolamAlprazolam31suppressed
Junel FeNorethindrone-E.Estradiol-Iron31suppressed
LactuloseLactulose30suppressed
Metoprolol SuccinateMetoprolol Succinate29suppressed
Potassium ChloridePotassium Chloride29suppressed
Tramadol HclTramadol Hcl28suppressed
GabapentinGabapentin2711
Trazodone HclTrazodone Hcl27suppressed
Benztropine MesylateBenztropine Mesylate26suppressed
BaclofenBaclofen24suppressed
CarbamazepineCarbamazepine24suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride24suppressed
Clonidine HclClonidine Hcl23suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen23suppressed
IbuprofenIbuprofen23suppressed
Fluoxetine HclFluoxetine Hcl22suppressed
Fluticasone PropionateFluticasone Propionate22suppressed
FenofibrateFenofibrate21suppressed
SpironolactoneSpironolactone21suppressed
SuboxoneBuprenorphine Hcl/Naloxone Hcl21suppressed
FinasterideFinasteride20suppressed
Levonorgestrel-Eth EstradiolLevonorgestrel/Ethin.Estradiol20suppressed
HydrochlorothiazideHydrochlorothiazide19suppressed
Meclizine HclMeclizine Hcl19suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
Duloxetine HclDuloxetine Hcl18suppressed
CarvedilolCarvedilol17suppressed
Divalproex Sodium ErDivalproex Sodium17suppressed
Valproic AcidValproic Acid (As Sodium Salt)17suppressed
ValsartanValsartan17suppressed
NaproxenNaproxen16suppressed
Prazosin HclPrazosin Hcl16suppressed
RisperidoneRisperidone16suppressed
AzithromycinAzithromycin1515
Estradiol-Norethindrone AcetatEstradiol/Norethindrone Acet15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
ScopolamineScopolamine15suppressed
Sertraline HclSertraline Hcl15suppressed
ZonisamideZonisamide15suppressed
DiazepamDiazepam14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
AmoxicillinAmoxicillin13suppressed
CelecoxibCelecoxib13suppressed
EzetimibeEzetimibe13suppressed
TemazepamTemazepam13suppressed
Albuterol Sulfate HfaAlbuterol Sulfate12suppressed
Alendronate SodiumAlendronate Sodium12suppressed
Benazepril HclBenazepril Hcl12suppressed
Chlorhexidine GluconateChlorhexidine Gluconate12suppressed
ClopidogrelClopidogrel Bisulfate12suppressed
Dicyclomine HclDicyclomine Hcl12suppressed
FebuxostatFebuxostat12suppressed
FenofibrateFenofibrate Nanocrystallized12suppressed
Fludrocortisone AcetateFludrocortisone Acetate12suppressed
GemfibrozilGemfibrozil12suppressed
KetoconazoleKetoconazole12suppressed
LoperamideLoperamide Hcl12suppressed
LovastatinLovastatin12suppressed
MethylprednisoloneMethylprednisolone12suppressed
Midodrine HclMidodrine Hcl12suppressed
NabumetoneNabumetone12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen12suppressed
ArmodafinilArmodafinil11suppressed
Ciprofloxacin HclCiprofloxacin Hcl11suppressed
PrednisonePrednisone11suppressed
Testosterone CypionateTestosterone Cypionate11suppressed

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 $259.88 · 11 records Indivior Inc. AZMIRO, CAPLYTA, Cologuard Collection Kit, INSPIRE, MOUNJARO, SUBLOCADE, Veozah, Wegovy, XYOSTED, ZEPBOUND 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