Healthcare provider profile · identity verified

Ian Guerrero, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · KAPOLEI, HI · NPI 1639604341

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 Ian Guerrero, M.D. received $4,640.66 in general payments during 2025 across 163 reported records.

AstraZeneca Pharmaceuticals LP accounted for 24.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 29 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Arikayce, Eliquis, Farxiga, Jardiance, Kerendia, Krystexxa, Linzess, Ozempic, Trelegy Ellipta.

ABBVIE 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 50 claims for Linzess by this doctor in 2024.

Amgen 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 KRYSTEXXA as an associated drug or biological on 45998 records involving 14548 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Krystexxa by this doctor in 2024.

Amgen 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 PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Prolia by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 100 claims for Farxiga by this doctor in 2024.

Bayer Healthcare Pharmaceuticals 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 Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 81 claims for Kerendia by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 112 claims for Jardiance by this doctor in 2024.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 79 claims for Trelegy Ellipta by this doctor in 2024.

Insmed, 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 Arikayce as an associated drug or biological on 32500 records involving 8305 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Arikayce 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 112 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 23 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 92 claims for Ozempic by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$4,640.66

163 reported records · 13 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $1,135.7724.5%292025
Amgen Inc. Unresolved — no canonical attribution shown $751.3516.2%272025
Insmed, Inc. Unresolved — no canonical attribution shown $492.7610.6%232025
Novo Nordisk Inc Unresolved — no canonical attribution shown $447.869.7%172025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $353.807.6%162025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $353.657.6%102025
ABBVIE INC. Unresolved — no canonical attribution shown $292.076.3%122025
Lilly USA, LLC Unresolved — no canonical attribution shown $235.365.1%62025
PFIZER INC. Unresolved — no canonical attribution shown $157.173.4%72025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $143.143.1%82025
Exact Sciences Corporation Unresolved — no canonical attribution shown $129.452.8%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $94.972.0%42025
Kowa Pharmaceuticals America, Inc. Unresolved — no canonical attribution shown $53.311.1%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$4,640.66163

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
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $492.76 23 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $378.01 13 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $374.89 10 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $353.80 16 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $339.84 6 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $306.45 11 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $267.65 8 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $235.36 6 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $228.65 9 2025
Source payment records
TEPEZZA
Normalized: tepezza
Biological Amgen Inc. $218.56 8 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $187.70 10 2025
Source payment records
LOKELMA
Normalized: lokelma
Drug AstraZeneca Pharmaceuticals LP $121.85 1 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $116.35 7 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $113.34 4 2025
Source payment records
Brinsupri
Normalized: brinsupri
Drug Insmed, Inc. $112.81 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $110.36 5 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $108.16 5 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $101.66 5 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $94.97 4 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $91.09 5 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $89.20 4 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $69.38 4 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $68.75 3 2025
Source payment records
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $56.92 2 2025
Source payment records
ZORYVE
Normalized: zoryve
Drug Kowa Pharmaceuticals America, Inc. $53.31 2 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $52.38 2 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $49.01 2 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological AstraZeneca Pharmaceuticals LP $24.00 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $18.96 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
Arikayce
arikayce
2025 Arikayce 2024 21
Beneficiary count suppressed
exact normalized Medicare Part D
ELIQUIS
eliquis
2025 Eliquis 2024 36 exact normalized Medicare Part D
FARXIGA
farxiga
2025 Farxiga 2024 100 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 112 exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 81 exact normalized Medicare Part D
KRYSTEXXA
krystexxa
2025 Krystexxa 2024 29
Beneficiary count suppressed
exact normalized Medicare Part D
LINZESS
linzess
2025 Linzess 2024 50 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 92 exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 79 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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
50 30
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 KRYSTEXXA
open payments reported associated product
CMS Open Payments — General Payments
45998 supporting records · 14548 recipient NPIs · example record 1226871690
Krystexxa · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
19 16
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
100 57
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Kerendia
open payments reported associated product
CMS Open Payments — General Payments
138674 supporting records · 48458 recipient NPIs · example record 1225434663
Kerendia · 2024
Exact normalized brand match · 1 Part D row
81 37
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
112 52
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
79 27
Insmed, Inc.
Exact reporting entity; no affiliate inference
2025 Arikayce
open payments reported associated product
CMS Open Payments — General Payments
32500 supporting records · 8305 recipient NPIs · example record 1186254431
Arikayce · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
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
112 52
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
23 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
92 28
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
36 22

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
Losartan PotassiumLosartan Potassium502278
Atorvastatin CalciumAtorvastatin Calcium497262
Amlodipine BesylateAmlodipine Besylate287159
Rosuvastatin CalciumRosuvastatin Calcium271140
Metoprolol SuccinateMetoprolol Succinate241126
Metformin Hcl ErMetformin Hcl175102
AzithromycinAzithromycin157127
Tamsulosin HclTamsulosin Hcl14180
Levothyroxine SodiumLevothyroxine Sodium12766
Alendronate SodiumAlendronate Sodium12076
Albuterol Sulfate HfaAlbuterol Sulfate11765
PrednisonePrednisone11696
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med11360
JardianceEmpagliflozin11252
AllopurinolAllopurinol10255
FarxigaDapagliflozin Propanediol10057
Metformin HclMetformin Hcl9250
OzempicSemaglutide9228
SimvastatinSimvastatin9248
CefdinirCefdinir9177
GabapentinGabapentin9164
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8953
Pantoprazole SodiumPantoprazole Sodium8961
KerendiaFinerenone8137
Trelegy ElliptaFluticasone/Umeclidin/Vilanter7927
FurosemideFurosemide7652
Olmesartan MedoxomilOlmesartan Medoxomil7234
Fluticasone PropionateFluticasone Propionate6847
Meclizine HclMeclizine Hcl6853
OmeprazoleOmeprazole6846
FinasterideFinasteride6633
Pravastatin SodiumPravastatin Sodium6135
Clobetasol PropionateClobetasol Propionate5532
ColchicineColchicine5235
ClopidogrelClopidogrel Bisulfate5127
LinzessLinaclotide5030
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4711
FamotidineFamotidine4629
AlprazolamAlprazolam4215
Metoprolol TartrateMetoprolol Tartrate4219
CarvedilolCarvedilol4122
MyrbetriqMirabegron3711
EliquisApixaban3622
JanuviaSitagliptin Phosphate3514
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip3416
KetoconazoleKetoconazole31suppressed
MeloxicamMeloxicam3025
Janumet XrSitagliptin Phos/Metformin Hcl2914
KrystexxaPegloticase29suppressed
Glipizide-MetforminGlipizide/Metformin Hcl2814
LisinoprilLisinopril2819
Trazodone HclTrazodone Hcl2816
XareltoRivaroxaban2711
MirtazapineMirtazapine2614
MupirocinMupirocin2613
Triamcinolone AcetonideTriamcinolone Acetonide2617
VascepaIcosapent Ethyl2611
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2322
GlipizideGlipizide2314
Halobetasol PropionateHalobetasol Propionate2313
TrulicityDulaglutide23suppressed
LevofloxacinLevofloxacin2222
Montelukast SodiumMontelukast Sodium2212
Nebivolol HclNebivolol Hcl22suppressed
Oxycodone HclOxycodone Hcl22suppressed
Pioglitazone HclPioglitazone Hcl2213
ArikayceAmikacin Liposomal/Neb.Accessr21suppressed
IbuprofenIbuprofen2114
ValsartanValsartan21suppressed
Betamethasone DipropionateBetamethasone Dipropionate2014
Glipizide ErGlipizide20suppressed
Megestrol AcetateMegestrol Acetate2013
Memantine HclMemantine Hcl2014
SpironolactoneSpironolactone2015
Tizanidine HclTizanidine Hcl2018
TradjentaLinagliptin2012
PregabalinPregabalin19suppressed
ProliaDenosumab1916
RifampinRifampin19suppressed
Sertraline HclSertraline Hcl18suppressed
Synjardy XrEmpagliflozin/Metformin Hcl18suppressed
EdarbiAzilsartan Medoxomil17suppressed
Escitalopram OxalateEscitalopram Oxalate17suppressed
Hydroxyzine HclHydroxyzine Hcl1713
NaproxenNaproxen1717
RisperidoneRisperidone17suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan16suppressed
EzetimibeEzetimibe1611
LovastatinLovastatin16suppressed
Hydralazine HclHydralazine Hcl1511
JanumetSitagliptin Phos/Metformin Hcl15suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
MethotrexateMethotrexate Sodium15suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
LevetiracetamLevetiracetam14suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads13suppressed
LivaloPitavastatin Calcium13suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide13suppressed
Sumatriptan SuccinateSumatriptan Succinate13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1212
Ethambutol HclEthambutol Hcl12suppressed
Single Use SwabAlcohol Antiseptic Pads12suppressed
Duloxetine HclDuloxetine Hcl11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
GlimepirideGlimepiride11suppressed
Ondansetron HclOndansetron Hcl11suppressed
Quetiapine FumarateQuetiapine Fumarate11suppressed

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 $4,640.66 · 163 records AstraZeneca Pharmaceuticals LP AIRSUPRA, Arikayce, BREZTRI, Brinsupri, CREON, ELIQUIS, FARXIGA, JARDIANCE, KRYSTEXXA, Kerendia, LINZESS, LOKELMA, MOUNJARO, NURTEC ODT, OTEZLA, Ozempic, PAXLOVID, QULIPTA, REPATHA, Rybelsus, SKYRIZI, TEPEZZA, TEZSPIRE, TRELEGY ELLIPTA, UBRELVY, Wegovy, ZAVZPRET, ZEPBOUND, ZORYVE 12
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