Healthcare provider profile · identity verified

Guillermo A Pena, MD

Allopathic & Osteopathic Physicians|Internal Medicine · BLUE RIDGE, GA · NPI 1013978162

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 Guillermo A Pena, MD received $97.26 in general payments during 2025 across 6 reported records.

Novo Nordisk Inc accounted for 37.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

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

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 39 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 53 claims for Mounjaro by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Trulicity by this doctor in 2024.

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 24 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

$97.26

6 reported records · 5 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 $36.2637.3%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $18.4819.0%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $15.2315.7%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $13.6514.0%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $13.6414.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$97.266

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 $22.26 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $22.26 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $18.48 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $18.48 1 2025
Source payment records
VAXNEUVANCE
Normalized: vaxneuvance
Biological Merck Sharp & Dohme LLC $18.48 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $15.23 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $13.65 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $13.65 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $13.64 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
MOUNJARO
mounjaro
2025 Mounjaro 2024 53
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 24
Beneficiary count suppressed
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
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
39 12
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
53 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
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
24 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
Atorvastatin CalciumAtorvastatin Calcium23372
LisinoprilLisinopril21863
Metoprolol SuccinateMetoprolol Succinate19654
Amlodipine BesylateAmlodipine Besylate17649
Levothyroxine SodiumLevothyroxine Sodium17649
Rosuvastatin CalciumRosuvastatin Calcium16859
Metformin HclMetformin Hcl16343
GabapentinGabapentin14246
Pantoprazole SodiumPantoprazole Sodium11435
FarxigaDapagliflozin Propanediol10839
GlimepirideGlimepiride10429
Tramadol HclTramadol Hcl9221
Cyclobenzaprine HclCyclobenzaprine Hcl8928
Albuterol Sulfate HfaAlbuterol Sulfate8823
Metoprolol TartrateMetoprolol Tartrate8825
FurosemideFurosemide8428
Losartan PotassiumLosartan Potassium8427
Trazodone HclTrazodone Hcl7821
Buspirone HclBuspirone Hcl7417
OmeprazoleOmeprazole7326
Fluticasone PropionateFluticasone Propionate7123
Potassium ChloridePotassium Chloride7018
Tamsulosin HclTamsulosin Hcl6522
Hydralazine HclHydralazine Hcl6419
ClopidogrelClopidogrel Bisulfate6215
HydrochlorothiazideHydrochlorothiazide5618
AllopurinolAllopurinol5516
FenofibrateFenofibrate5318
MounjaroTirzepatide53suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter5315
Zolpidem TartrateZolpidem Tartrate52suppressed
AlprazolamAlprazolam51suppressed
IbuprofenIbuprofen4911
Clonidine HclClonidine Hcl47suppressed
Tizanidine HclTizanidine Hcl45suppressed
PrednisonePrednisone4319
Montelukast SodiumMontelukast Sodium4116
JardianceEmpagliflozin3912
Escitalopram OxalateEscitalopram Oxalate37suppressed
MeloxicamMeloxicam3713
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen37suppressed
EzetimibeEzetimibe3613
SimvastatinSimvastatin3612
FamotidineFamotidine3513
EliquisApixaban33suppressed
Ondansetron OdtOndansetron33suppressed
Paroxetine HclParoxetine Hcl33suppressed
Duloxetine HclDuloxetine Hcl32suppressed
Ibandronate SodiumIbandronate Sodium3112
LorazepamLorazepam3111
Metformin Hcl ErMetformin Hcl3111
MethylprednisoloneMethylprednisolone3024
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen29suppressed
Pravastatin SodiumPravastatin Sodium29suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2923
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide27suppressed
CarvedilolCarvedilol2511
DiazepamDiazepam25suppressed
Fluoxetine HclFluoxetine Hcl25suppressed
Promethazine HclPromethazine Hcl25suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
Verapamil ErVerapamil Hcl25suppressed
Vitamin D2Ergocalciferol (Vitamin D2)2511
LovastatinLovastatin24suppressed
OzempicSemaglutide24suppressed
AtenololAtenolol23suppressed
Citalopram HbrCitalopram Hydrobromide23suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium23suppressed
MethotrexateMethotrexate Sodium23suppressed
TradjentaLinagliptin23suppressed
CefdinirCefdinir2214
NovologInsulin Aspart22suppressed
CelecoxibCelecoxib20suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog20suppressed
Quetiapine FumarateQuetiapine Fumarate20suppressed
Diclofenac SodiumDiclofenac Sodium19suppressed
Oxycodone HclOxycodone Hcl19suppressed
Amitriptyline HclAmitriptyline Hcl18suppressed
GemfibrozilGemfibrozil18suppressed
TestosteroneTestosterone18suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Testosterone CypionateTestosterone Cypionate17suppressed
Memantine HclMemantine Hcl16suppressed
Sertraline HclSertraline Hcl16suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril15suppressed
AzithromycinAzithromycin1513
Ropinirole HclRopinirole Hcl15suppressed
Benazepril HclBenazepril Hcl14suppressed
Novolog FlexpenInsulin Aspart14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
Amiodarone HclAmiodarone Hcl13suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol13suppressed
Doxazosin MesylateDoxazosin Mesylate13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Flecainide AcetateFlecainide Acetate13suppressed
FluconazoleFluconazole13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
V-Go 40Sub-Q Insulin Device, 40 Unit13suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)12suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
NabumetoneNabumetone12suppressed
RizatriptanRizatriptan Benzoate12suppressed
SynthroidLevothyroxine Sodium12suppressed
TrulicityDulaglutide12suppressed
ClonazepamClonazepam11suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
FinasterideFinasteride11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
GlipizideGlipizide11suppressed
MyrbetriqMirabegron11suppressed
SpironolactoneSpironolactone11suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
Tresiba Flextouch U-100Insulin Degludec11suppressed

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 $97.26 · 6 records Novo Nordisk Inc CAPVAXIVE, Cologuard Collection Kit, Dexcom G6 Transmitter, GARDASIL 9, MOUNJARO, Ozempic, Rybelsus, VAXNEUVANCE, ZEPBOUND 4
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