Healthcare provider profile · identity verified

John Gregory Corcoran, MD

Allopathic & Osteopathic Physicians|Internal Medicine · TUCSON, AZ · NPI 1053350603

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 Gregory Corcoran, MD received $17.23 in general payments during 2025 across 1 reported records.

GlaxoSmithKline, LLC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$17.23

1 reported records · 1 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $17.23100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$17.231

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
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $17.23 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Sodium18359
Atorvastatin CalciumAtorvastatin Calcium16155
Losartan PotassiumLosartan Potassium12437
Escitalopram OxalateEscitalopram Oxalate9729
Amlodipine BesylateAmlodipine Besylate8729
OzempicSemaglutide8514
Pantoprazole SodiumPantoprazole Sodium7528
Metformin HclMetformin Hcl6321
Tramadol HclTramadol Hcl5914
Albuterol Sulfate HfaAlbuterol Sulfate5821
Tamsulosin HclTamsulosin Hcl5417
Zolpidem TartrateZolpidem Tartrate5017
EzetimibeEzetimibe4617
HydrochlorothiazideHydrochlorothiazide4616
GabapentinGabapentin4414
Diphenhydramine HclDiphenhydramine Hcl42suppressed
Ciprofloxacin HclCiprofloxacin Hcl4132
AlprazolamAlprazolam3913
Pravastatin SodiumPravastatin Sodium3911
Trazodone HclTrazodone Hcl3713
AllopurinolAllopurinol3511
Metoprolol TartrateMetoprolol Tartrate35suppressed
LisinoprilLisinopril3412
OmeprazoleOmeprazole3312
Rosuvastatin CalciumRosuvastatin Calcium3313
AzithromycinAzithromycin3127
Montelukast SodiumMontelukast Sodium3111
Metoprolol SuccinateMetoprolol Succinate3011
AtenololAtenolol28suppressed
Potassium ChloridePotassium Chloride2811
EliquisApixaban26suppressed
Felodipine ErFelodipine23suppressed
Fluoxetine HclFluoxetine Hcl23suppressed
Venlafaxine Hcl ErVenlafaxine Hcl23suppressed
SimvastatinSimvastatin22suppressed
FamotidineFamotidine19suppressed
MethocarbamolMethocarbamol1912
PrimidonePrimidone19suppressed
Paroxetine HclParoxetine Hcl18suppressed
Hydroxyzine HclHydroxyzine Hcl17suppressed
LorazepamLorazepam17suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid15suppressed
Alendronate SodiumAlendronate Sodium13suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
Duloxetine HclDuloxetine Hcl13suppressed
PregabalinPregabalin13suppressed
Repatha SureclickEvolocumab13suppressed
SynthroidLevothyroxine Sodium13suppressed
Tizanidine HclTizanidine Hcl13suppressed
ValsartanValsartan13suppressed
Betamethasone DipropionateBetamethasone Dipropionate12suppressed
DiazepamDiazepam12suppressed
DipyridamoleDipyridamole12suppressed
Hydralazine HclHydralazine Hcl12suppressed
IrbesartanIrbesartan12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Ondansetron OdtOndansetron12suppressed
Theo-24Theophylline Anhydrous12suppressed
Vancomycin HclVancomycin Hcl12suppressed
Azelastine HclAzelastine Hcl11suppressed
Donepezil HclDonepezil Hcl11suppressed
Doxepin HclDoxepin Hcl11suppressed
FarxigaDapagliflozin Propanediol11suppressed
FurosemideFurosemide11suppressed
HydrocortisoneHydrocortisone11suppressed
LevofloxacinLevofloxacin11suppressed
Methenamine HippurateMethenamine Hippurate11suppressed
Propranolol HclPropranolol Hcl11suppressed

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 $17.23 · 1 records GlaxoSmithKline, LLC. SHINGRIX
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