Healthcare provider profile · identity verified

John P Caster, MD

Allopathic & Osteopathic Physicians|Internal Medicine · SPRINGFIELD, MO · NPI 1902849854

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 P Caster, MD received $1,105.23 in general payments during 2025 across 67 reported records.

Abbott Laboratories accounted for 19.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 17 associated products.

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

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 13 claims for Farxiga 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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Symbicort 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 AREXVY as an associated drug or biological on 47563 records involving 28786 distinct recipient NPIs. Public Medicare Part D data also shows 40 claims for Arexvy 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 SHINGRIX as an associated drug or biological on 43515 records involving 26794 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Shingrix 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 78 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 39 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 45 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 79 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 51 claims for Rybelsus 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 ABRYSVO as an associated drug or biological on 55380 records involving 31565 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Abrysvo 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 202 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

$1,105.23

67 reported records · 9 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
Abbott Laboratories Unresolved — no canonical attribution shown $216.3319.6%92025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $168.4115.2%112025
Novo Nordisk Inc Unresolved — no canonical attribution shown $161.0114.6%102025
Lilly USA, LLC Unresolved — no canonical attribution shown $157.7414.3%112025
PFIZER INC. Unresolved — no canonical attribution shown $153.0213.8%132025
Dexcom, Inc. Unresolved — no canonical attribution shown $141.8512.8%82025
GENZYME CORPORATION Unresolved — no canonical attribution shown $65.395.9%32025
Inspire Medical Systems, Inc. Unresolved — no canonical attribution shown $24.142.2%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $17.341.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,105.2367

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
FREESTYLE LIBRE
Normalized: freestyle libre
Device Abbott Laboratories $216.33 9 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $150.68 9 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $141.85 8 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $123.50 9 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $112.54 10 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $76.42 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $75.61 6 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $68.65 4 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $45.16 3 2025
Source payment records
FABRAZYME
Normalized: fabrazyme
Biological GENZYME CORPORATION $42.30 2 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $40.48 3 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $40.48 3 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $35.23 2 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $34.24 2 2025
Source payment records
INSPIRE
Normalized: inspire
Device Inspire Medical Systems, Inc. $24.14 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $17.34 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $10.33 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
AREXVY
arexvy
2025 Arexvy 2024 40 exact normalized Medicare Part D
ELIQUIS
eliquis
2025 Eliquis 2024 202 exact normalized Medicare Part D
FARXIGA
farxiga
2025 Farxiga 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 39
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 79 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 51
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 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
13 suppressed by CMS
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
13 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 AREXVY
open payments reported associated product
CMS Open Payments — General Payments
47563 supporting records · 28786 recipient NPIs · example record 1190332445
Arexvy · 2024
Exact normalized brand match · 1 Part D row
40 40
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 SHINGRIX
open payments reported associated product
CMS Open Payments — General Payments
43515 supporting records · 26794 recipient NPIs · example record 1190332452
Shingrix · 2024
Exact normalized brand match · 1 Part D row
11 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
78 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
39 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
45 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
79 13
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
51 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ABRYSVO
open payments reported associated product
CMS Open Payments — General Payments
55380 supporting records · 31565 recipient NPIs · example record 1228794147
Abrysvo · 2024
Exact normalized brand match · 1 Part D row
24 24
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
202 36

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 Calcium591154
Amlodipine BesylateAmlodipine Besylate524135
Levothyroxine SodiumLevothyroxine Sodium49599
LisinoprilLisinopril487128
OmeprazoleOmeprazole36592
GabapentinGabapentin33678
Losartan PotassiumLosartan Potassium26770
Trazodone HclTrazodone Hcl24554
Metoprolol SuccinateMetoprolol Succinate23364
SimvastatinSimvastatin22753
HydrochlorothiazideHydrochlorothiazide21058
Rosuvastatin CalciumRosuvastatin Calcium21057
EliquisApixaban20236
Sertraline HclSertraline Hcl18843
Metformin Hcl ErMetformin Hcl17945
CarvedilolCarvedilol17543
Tamsulosin HclTamsulosin Hcl16847
Tizanidine HclTizanidine Hcl16841
Potassium ChloridePotassium Chloride16639
Duloxetine HclDuloxetine Hcl16438
Metformin HclMetformin Hcl15943
AllopurinolAllopurinol14030
Fluticasone PropionateFluticasone Propionate13535
Alendronate SodiumAlendronate Sodium13130
Pantoprazole SodiumPantoprazole Sodium12935
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12314
Albuterol Sulfate HfaAlbuterol Sulfate11949
SpironolactoneSpironolactone10118
Tramadol HclTramadol Hcl10128
FurosemideFurosemide10026
MeloxicamMeloxicam9119
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8623
ClopidogrelClopidogrel Bisulfate8518
Metoprolol TartrateMetoprolol Tartrate8523
AtenololAtenolol8418
Pravastatin SodiumPravastatin Sodium8424
Escitalopram OxalateEscitalopram Oxalate8220
Buspirone HclBuspirone Hcl8118
OzempicSemaglutide7913
JardianceEmpagliflozin78suppressed
Benazepril HclBenazepril Hcl7419
Citalopram HbrCitalopram Hydrobromide7318
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid7321
Fluoxetine HclFluoxetine Hcl6714
Nebivolol HclNebivolol Hcl6513
FamotidineFamotidine6314
Montelukast SodiumMontelukast Sodium6216
Donepezil HclDonepezil Hcl55suppressed
LovastatinLovastatin5415
GlimepirideGlimepiride52suppressed
PregabalinPregabalin52suppressed
Paroxetine HclParoxetine Hcl5112
RybelsusSemaglutide51suppressed
ValsartanValsartan5113
AzithromycinAzithromycin4940
TrulicityDulaglutide45suppressed
XareltoRivaroxaban44suppressed
Venlafaxine Hcl ErVenlafaxine Hcl43suppressed
SynthroidLevothyroxine Sodium4211
Ondansetron OdtOndansetron41suppressed
ArexvyRsvpref3 Antigen/As01e/Pf4040
JanuviaSitagliptin Phosphate39suppressed
MounjaroTirzepatide39suppressed
Olmesartan MedoxomilOlmesartan Medoxomil39suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium38suppressed
ChlorthalidoneChlorthalidone37suppressed
FenofibrateFenofibrate37suppressed
Hydralazine HclHydralazine Hcl3713
Ondansetron HclOndansetron Hcl3516
TradjentaLinagliptin34suppressed
Ipratropium BromideIpratropium Bromide33suppressed
IrbesartanIrbesartan33suppressed
Oxycodone HclOxycodone Hcl33suppressed
Bupropion XlBupropion Hcl3211
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril31suppressed
CephalexinCephalexin3128
Diltiazem 24hr Er (Cd)Diltiazem Hcl3013
MethylprednisoloneMethylprednisolone3029
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide28suppressed
Doxycycline HyclateDoxycycline Hyclate2726
FinasterideFinasteride27suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl27suppressed
RamiprilRamipril27suppressed
Azelastine HclAzelastine Hcl2611
Dicyclomine HclDicyclomine Hcl26suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc25suppressed
EzetimibeEzetimibe25suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol25suppressed
Nifedipine ErNifedipine25suppressed
AbrysvoRsv Vacc, Pref A And Pref B/Pf2424
AlprazolamAlprazolam24suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac2424
Diclofenac SodiumDiclofenac Sodium24suppressed
Doxazosin MesylateDoxazosin Mesylate24suppressed
Ropinirole HclRopinirole Hcl22suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic22suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog21suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide21suppressed
Enalapril MaleateEnalapril Maleate20suppressed
Doxepin HclDoxepin Hcl19suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate19suppressed
Verapamil ErVerapamil Hcl19suppressed
Warfarin SodiumWarfarin Sodium19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate18suppressed
CelecoxibCelecoxib18suppressed
ClonazepamClonazepam18suppressed
Oxybutynin Chloride ErOxybutynin Chloride18suppressed
SucralfateSucralfate18suppressed
Klor-Con M20Potassium Chloride17suppressed
Oxybutynin ChlorideOxybutynin Chloride17suppressed
Pioglitazone HclPioglitazone Hcl17suppressed
TelmisartanTelmisartan17suppressed
TopiramateTopiramate17suppressed
Nortriptyline HclNortriptyline Hcl16suppressed
Propranolol HclPropranolol Hcl16suppressed
Testosterone CypionateTestosterone Cypionate16suppressed
ValacyclovirValacyclovir Hcl16suppressed
Benazepril-HydrochlorothiazideBenazepril/Hydrochlorothiazide15suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol15suppressed
Terazosin HclTerazosin Hcl14suppressed
Venlafaxine HclVenlafaxine Hcl14suppressed
AmoxicillinAmoxicillin1313
AripiprazoleAripiprazole13suppressed
Carbidopa-LevodopaCarbidopa/Levodopa13suppressed
Clonidine HclClonidine Hcl13suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate13suppressed
EntrestoSacubitril/Valsartan13suppressed
FarxigaDapagliflozin Propanediol13suppressed
IbuprofenIbuprofen13suppressed
LatanoprostLatanoprost13suppressed
LinzessLinaclotide13suppressed
MethimazoleMethimazole13suppressed
Metoclopramide HclMetoclopramide Hcl13suppressed
Midodrine HclMidodrine Hcl13suppressed
NitroglycerinNitroglycerin13suppressed
NystatinNystatin13suppressed
SymbicortBudesonide/Formoterol Fumarate13suppressed
TorsemideTorsemide13suppressed
Breo ElliptaFluticasone/Vilanterol12suppressed
Clorazepate DipotassiumClorazepate Dipotassium12suppressed
FenofibrateFenofibrate,micronized12suppressed
Fludrocortisone AcetateFludrocortisone Acetate12suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
SulfasalazineSulfasalazine12suppressed
Candesartan CilexetilCandesartan Cilexetil11suppressed
CholestyramineCholestyramine (With Sugar)11suppressed
Cinacalcet HclCinacalcet Hcl11suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp11suppressed
Prochlorperazine MaleateProchlorperazine Maleate11suppressed
Raloxifene HclRaloxifene Hcl11suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf11suppressed
SotalolSotalol 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 $1,105.23 · 67 records Abbott Laboratories AIRSUPRA, AREXVY, BREZTRI, Dexcom G6 Transmitter, ELIQUIS, FABRAZYME, FARXIGA, FREESTYLE LIBRE, INSPIRE, KISUNLA, MOUNJARO, NURTEC ODT, Ozempic, Rybelsus, Wegovy, ZAVZPRET, ZEPBOUND 11
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