Healthcare provider profile · identity verified

David G Alonso, MD

Allopathic & Osteopathic Physicians|Internal Medicine · CHICO, CA · NPI 1467403246

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 David G Alonso, MD received $737.81 in general payments during 2025 across 32 reported records.

AstraZeneca Pharmaceuticals LP accounted for 27.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 23 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Creon, Ozempic, Paxlovid, 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 ARMOUR THYROID as an associated drug or biological on 50 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 39 claims for Armour Thyroid by this doctor in 2024.

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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Creon by this doctor in 2024.

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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Synthroid 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 BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Brilinta by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. 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 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 106 claims for Eliquis 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 48 claims for Trelegy Ellipta 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 175 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 84 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 106 claims for Eliquis 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Nurtec Odt 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$737.81

32 reported records · 15 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 $204.9427.8%72025
ABBVIE INC. Unresolved — no canonical attribution shown $128.9117.5%62025
Novo Nordisk Inc Unresolved — no canonical attribution shown $50.266.8%22025
Corcept Therapeutics Unresolved — no canonical attribution shown $46.006.2%22025
PFIZER INC. Unresolved — no canonical attribution shown $44.856.1%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $43.835.9%22025
Amgen Inc. Unresolved — no canonical attribution shown $39.385.3%22025
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $31.954.3%12025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $28.263.8%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $24.663.3%12025
Electromed, Inc. Unresolved — no canonical attribution shown $23.613.2%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $20.472.8%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $19.272.6%12025
Verity Pharmaceuticals Inc. Unresolved — no canonical attribution shown $16.822.3%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $14.602.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$737.8132

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
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $116.65 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $74.19 4 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $53.34 3 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $46.00 2 2025
Source payment records
JOURNAVX
Normalized: journavx
Drug VERTEX PHARMACEUTICALS INCORPORATED $31.95 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $31.36 1 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $28.26 1 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $27.20 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $24.66 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $24.66 1 2025
Source payment records
SMARTVEST
Normalized: smartvest
Device Electromed, Inc. $23.61 2 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $23.52 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $22.63 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $22.22 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $20.47 1 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $19.27 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $18.90 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $18.90 1 2025
Source payment records
Tlando
Normalized: tlando
Drug Verity Pharmaceuticals Inc. $16.82 1 2025
Source payment records
JASCAYD
Normalized: jascayd
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $16.63 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $15.86 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $15.86 1 2025
Source payment records
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $14.60 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
CREON
creon
2025 Creon 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 84 exact normalized Medicare Part D
PAXLOVID
paxlovid
2025 Paxlovid 2024 30 exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 48 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 ARMOUR THYROID
open payments reported associated product
CMS Open Payments — General Payments
50 supporting records · 11 recipient NPIs · example record 1201517088
Armour Thyroid · 2024
Exact normalized brand match · 1 Part D row
39 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
74 19
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
106 22
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
48 11
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
175 26
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
84 14
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
106 22
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
28 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
30 30

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 Calcium361102
Levothyroxine SodiumLevothyroxine Sodium19147
GabapentinGabapentin18939
MounjaroTirzepatide17526
Amlodipine BesylateAmlodipine Besylate13639
LisinoprilLisinopril12839
Rosuvastatin CalciumRosuvastatin Calcium12533
EliquisApixaban10622
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen10030
HydrochlorothiazideHydrochlorothiazide9932
OmeprazoleOmeprazole9526
Montelukast SodiumMontelukast Sodium9424
Metoprolol SuccinateMetoprolol Succinate8925
Tamsulosin HclTamsulosin Hcl8523
OzempicSemaglutide8414
Pantoprazole SodiumPantoprazole Sodium8421
Trazodone HclTrazodone Hcl8021
Losartan PotassiumLosartan Potassium7619
SynthroidLevothyroxine Sodium7419
AlprazolamAlprazolam7120
Repatha SureclickEvolocumab68suppressed
LorazepamLorazepam6520
Np ThyroidThyroid,pork6514
PrednisonePrednisone6530
ProgesteroneProgesterone, Micronized5515
EstradiolEstradiol5421
Tramadol HclTramadol Hcl5412
EzetimibeEzetimibe5311
Bupropion XlBupropion Hcl5016
Escitalopram OxalateEscitalopram Oxalate5012
FurosemideFurosemide5020
Ciprofloxacin HclCiprofloxacin Hcl4936
Citalopram HbrCitalopram Hydrobromide4912
Trelegy ElliptaFluticasone/Umeclidin/Vilanter4811
CarvedilolCarvedilol47suppressed
ClonazepamClonazepam4714
Quetiapine FumarateQuetiapine Fumarate47suppressed
AllopurinolAllopurinol4614
Duloxetine HclDuloxetine Hcl46suppressed
Zolpidem TartrateZolpidem Tartrate4619
Sertraline HclSertraline Hcl4412
FinasterideFinasteride4111
SimvastatinSimvastatin4111
ValacyclovirValacyclovir Hcl4019
Armour ThyroidThyroid,pork39suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl37suppressed
AzithromycinAzithromycin3629
Liothyronine SodiumLiothyronine Sodium36suppressed
SpironolactoneSpironolactone36suppressed
Icosapent EthylIcosapent Ethyl35suppressed
Ondansetron OdtOndansetron3520
Potassium ChloridePotassium Chloride3512
ClopidogrelClopidogrel Bisulfate33suppressed
Metoprolol TartrateMetoprolol Tartrate32suppressed
MyrbetriqMirabegron30suppressed
PaxlovidNirmatrelvir/Ritonavir3030
Testosterone CypionateTestosterone Cypionate30suppressed
Buspirone HclBuspirone Hcl29suppressed
Pravastatin SodiumPravastatin Sodium29suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2813
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide28suppressed
Nurtec OdtRimegepant Sulfate28suppressed
MeloxicamMeloxicam27suppressed
Metformin HclMetformin Hcl2711
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide26suppressed
Albuterol Sulfate HfaAlbuterol Sulfate2512
BaclofenBaclofen25suppressed
Benazepril HclBenazepril Hcl25suppressed
CephalexinCephalexin2520
FamotidineFamotidine24suppressed
Metformin Hcl ErMetformin Hcl24suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen24suppressed
Ropinirole HclRopinirole Hcl24suppressed
DiazepamDiazepam23suppressed
Fluoxetine HclFluoxetine Hcl22suppressed
PregabalinPregabalin22suppressed
Dexlansoprazole DrDexlansoprazole21suppressed
EszopicloneEszopiclone21suppressed
Alendronate SodiumAlendronate Sodium20suppressed
Amitriptyline HclAmitriptyline Hcl20suppressed
Nebivolol HclNebivolol Hcl20suppressed
Sumatriptan SuccinateSumatriptan Succinate20suppressed
Breo ElliptaFluticasone/Vilanterol19suppressed
Memantine HclMemantine Hcl19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
CelecoxibCelecoxib17suppressed
Ipratropium BromideIpratropium Bromide17suppressed
Naltrexone HclNaltrexone Hcl17suppressed
Prochlorperazine MaleateProchlorperazine Maleate17suppressed
RamiprilRamipril17suppressed
ValsartanValsartan17suppressed
XifaxanRifaximin17suppressed
Propranolol HclPropranolol Hcl15suppressed
Spiriva RespimatTiotropium Bromide15suppressed
AcyclovirAcyclovir14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1413
Donepezil HclDonepezil Hcl14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
CreonLipase/Protease/Amylase13suppressed
Estradiol (Twice Weekly)Estradiol13suppressed
Nifedipine ErNifedipine13suppressed
AtenololAtenolol12suppressed
BrilintaTicagrelor12suppressed
ClonidineClonidine12suppressed
Diltiazem 24hr ErDiltiazem Hcl12suppressed
TrulicityDulaglutide12suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium11suppressed
Guanfacine HclGuanfacine Hcl11suppressed
Nortriptyline HclNortriptyline Hcl11suppressed
Olmesartan MedoxomilOlmesartan Medoxomil11suppressed
Paroxetine HclParoxetine Hcl11suppressed
RizatriptanRizatriptan Benzoate11suppressed

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 $737.81 · 32 records AstraZeneca Pharmaceuticals LP AIRSUPRA, AREXVY, BREZTRI, CAMZYOS, CREON, EVENITY, JARDIANCE, JASCAYD, JOURNAVX, Korlym, OFEV, OTEZLA, Ozempic, PAXLOVID, REPATHA, Rybelsus, SMARTVEST, TRELEGY ELLIPTA, The Cologuard Plus Collection Kit, Tlando, Wegovy, ZAVZPRET, ZENPEP 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