Healthcare provider profile · identity verified

Alan Gonzalez Zapata, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Sleep Medicine · TOPEKA, KS · NPI 1134658321

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 Alan Gonzalez Zapata, M.D. received $1,026.38 in general payments during 2025 across 41 reported records.

JAZZ PHARMACEUTICALS INC. accounted for 33.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 22 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Mounjaro, Sunosi, Trelegy Ellipta, Wakix, Xywav.

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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Symbicort by this doctor in 2024.

Axsome Therapeutics, 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 Sunosi as an associated drug or biological on 19758 records involving 6305 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Sunosi 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 15 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 26 claims for Trelegy Ellipta by this doctor in 2024.

HARMONY BIOSCIENCES 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 WAKIX as an associated drug or biological on 20652 records involving 6156 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Wakix by this doctor in 2024.

JAZZ 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 XYWAV as an associated drug or biological on 19511 records involving 5343 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Xywav 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 15 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 35 claims for Mounjaro 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 35 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

$1,026.38

41 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
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $345.3333.6%72025
HARMONY BIOSCIENCES LLC Unresolved — no canonical attribution shown $192.6418.8%112025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $86.168.4%32025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $60.845.9%22025
Amgen Inc. Unresolved — no canonical attribution shown $55.125.4%32025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $49.954.9%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $44.254.3%22025
Dexcom, Inc. Unresolved — no canonical attribution shown $40.463.9%22025
Electromed, Inc. Unresolved — no canonical attribution shown $30.613.0%22025
Resmed Corp Unresolved — no canonical attribution shown $26.072.5%12025
Insulet Corporation Unresolved — no canonical attribution shown $25.472.5%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $19.891.9%12025
PFIZER INC. Unresolved — no canonical attribution shown $19.051.9%12025
Actelion Pharmaceuticals US, Inc. Unresolved — no canonical attribution shown $15.681.5%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $14.861.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$786.4138
Education$239.973

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
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $345.33 7 2025
Source payment records
WAKIX
Normalized: wakix
Drug HARMONY BIOSCIENCES LLC $152.65 10 2025
Source payment records
Sunosi
Normalized: sunosi
Drug Axsome Therapeutics, Inc. $86.16 3 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $60.84 2 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $44.25 2 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $40.46 2 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $31.55 2 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $31.55 2 2025
Source payment records
SMARTVEST
Normalized: smartvest
Device Electromed, Inc. $30.61 2 2025
Source payment records
AIRSENSE
Normalized: airsense
Device Resmed Corp $26.07 1 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $25.47 1 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc. $21.39 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $19.89 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $19.89 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $19.05 1 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $18.65 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $18.40 1 2025
Source payment records
OPSUMIT
Normalized: opsumit
Drug Actelion Pharmaceuticals US, Inc. $15.68 1 2025
Source payment records
UPTRAVI
Normalized: uptravi
Drug Actelion Pharmaceuticals US, Inc. $15.68 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $15.08 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $15.08 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $14.86 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 35
Beneficiary count suppressed
exact normalized Medicare Part D
Sunosi
sunosi
2025 Sunosi 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D
WAKIX
wakix
2025 Wakix 2024 15
Beneficiary count suppressed
exact normalized Medicare Part D
XYWAV
xywav
2025 Xywav 2024 16
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
Axsome Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 Sunosi
open payments reported associated product
CMS Open Payments — General Payments
19758 supporting records · 6305 recipient NPIs · example record 1235293059
Sunosi · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
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
15 suppressed by CMS
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
26 suppressed by CMS
HARMONY BIOSCIENCES LLC
Exact reporting entity; no affiliate inference
2025 WAKIX
open payments reported associated product
CMS Open Payments — General Payments
20652 supporting records · 6156 recipient NPIs · example record 1222387076
Wakix · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
JAZZ PHARMACEUTICALS INC.
Exact reporting entity; no affiliate inference
2025 XYWAV
open payments reported associated product
CMS Open Payments — General Payments
19511 supporting records · 5343 recipient NPIs · example record 1234297700
Xywav · 2024
Exact normalized brand match · 1 Part D row
16 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
15 suppressed by CMS
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
35 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
35 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
GabapentinGabapentin366103
Atorvastatin CalciumAtorvastatin Calcium31393
Amlodipine BesylateAmlodipine Besylate21261
Losartan PotassiumLosartan Potassium20855
Levothyroxine SodiumLevothyroxine Sodium17949
Tamsulosin HclTamsulosin Hcl16949
LisinoprilLisinopril15850
Pantoprazole SodiumPantoprazole Sodium15853
Ropinirole HclRopinirole Hcl14352
OmeprazoleOmeprazole12734
Metformin HclMetformin Hcl11334
Rosuvastatin CalciumRosuvastatin Calcium11134
SimvastatinSimvastatin11133
HydrochlorothiazideHydrochlorothiazide10029
PregabalinPregabalin9840
CelecoxibCelecoxib9233
Montelukast SodiumMontelukast Sodium9126
Pramipexole DihydrochloridePramipexole Di-Hcl8518
Bupropion XlBupropion Hcl7823
FurosemideFurosemide7623
Metformin Hcl ErMetformin Hcl7626
Tizanidine HclTizanidine Hcl7521
Albuterol Sulfate HfaAlbuterol Sulfate7023
Duloxetine HclDuloxetine Hcl6821
Trazodone HclTrazodone Hcl6819
CarvedilolCarvedilol6522
FinasterideFinasteride6318
Zolpidem TartrateZolpidem Tartrate6014
Metoprolol SuccinateMetoprolol Succinate5616
Alendronate SodiumAlendronate Sodium5514
Tramadol HclTramadol Hcl5519
Citalopram HbrCitalopram Hydrobromide5114
Fluticasone PropionateFluticasone Propionate5013
Pravastatin SodiumPravastatin Sodium4912
Cyclobenzaprine HclCyclobenzaprine Hcl4812
AllopurinolAllopurinol4714
Sertraline HclSertraline Hcl4511
ClonazepamClonazepam43suppressed
Amitriptyline HclAmitriptyline Hcl40suppressed
MeloxicamMeloxicam3917
EzetimibeEzetimibe3814
Methylphenidate ErMethylphenidate Hcl35suppressed
MounjaroTirzepatide35suppressed
OzempicSemaglutide35suppressed
BelsomraSuvorexant34suppressed
Metoprolol TartrateMetoprolol Tartrate34suppressed
Pioglitazone HclPioglitazone Hcl34suppressed
SynthroidLevothyroxine Sodium34suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen31suppressed
ClopidogrelClopidogrel Bisulfate28suppressed
Diclofenac SodiumDiclofenac Sodium28suppressed
LactuloseLactulose27suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter26suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide23suppressed
MethocarbamolMethocarbamol23suppressed
Oxybutynin ChlorideOxybutynin Chloride22suppressed
FamotidineFamotidine21suppressed
Tresiba Flextouch U-100Insulin Degludec21suppressed
Breo ElliptaFluticasone/Vilanterol20suppressed
GlimepirideGlimepiride20suppressed
Propranolol HclPropranolol Hcl20suppressed
Buspirone HclBuspirone Hcl18suppressed
Enalapril MaleateEnalapril Maleate18suppressed
IrbesartanIrbesartan18suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
NystopNystatin18suppressed
AlprazolamAlprazolam17suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1715
Azelastine HclAzelastine Hcl1711
Escitalopram OxalateEscitalopram Oxalate17suppressed
EstradiolEstradiol17suppressed
MirtazapineMirtazapine17suppressed
BaclofenBaclofen16suppressed
Bupropion Hcl SrBupropion Hcl16suppressed
Paroxetine HclParoxetine Hcl16suppressed
Warfarin SodiumWarfarin Sodium16suppressed
XywavSodium,calcium,mag,pot Oxybate16suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr15suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
JardianceEmpagliflozin15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Potassium ChloridePotassium Chloride15suppressed
WakixPitolisant Hcl15suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril14suppressed
Benazepril HclBenazepril Hcl14suppressed
Combivent RespimatIpratropium/Albuterol Sulfate14suppressed
Diclofenac PotassiumDiclofenac Potassium14suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
Metoclopramide HclMetoclopramide Hcl14suppressed
ModafinilModafinil14suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen14suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
Terazosin HclTerazosin Hcl14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
PrednisonePrednisone13suppressed
SpironolactoneSpironolactone13suppressed
SunosiSolriamfetol Hcl13suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol12suppressed
Meclizine HclMeclizine Hcl12suppressed
Memantine HclMemantine Hcl12suppressed
PhenobarbitalPhenobarbital12suppressed
Single Use SwabAlcohol Antiseptic Pads12suppressed
Terbinafine HclTerbinafine Hcl12suppressed
Diltiazem 24hr ErDiltiazem Hcl11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
LunestaEszopiclone11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
Prazosin HclPrazosin Hcl11suppressed
Spiriva HandihalerTiotropium Bromide11suppressed
Venlafaxine Hcl ErVenlafaxine 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 $1,026.38 · 41 records JAZZ PHARMACEUTICALS INC. AIRSENSE, AIRSUPRA, AREXVY, Dexcom G6 Transmitter, MOUNJARO, NURTEC ODT, OFEV, OPSUMIT, OTEZLA, Omnipod, REPATHA, SHINGRIX, SMARTVEST, Sunosi, TAVNEOS, TEZSPIRE, TRELEGY ELLIPTA, UPTRAVI, WAKIX, Wegovy, XYWAV, ZEPBOUND 9
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