Healthcare provider profile · identity verified

John Eric Ammon, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · BIRMINGHAM, AL · NPI 1215973524

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 Eric Ammon, M.D. received $897.76 in general payments during 2025 across 45 reported records.

PFIZER INC. accounted for 30.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 27 associated products.

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

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 21 claims for Linzess 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 58 claims for Synthroid by this doctor in 2024.

Astellas Pharma US 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 Myrbetriq as an associated drug or biological on 16 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Myrbetriq 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 11 claims for Kerendia 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 32 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 45 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 108 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 113 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 135 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 16 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

$897.76

45 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
PFIZER INC. Unresolved — no canonical attribution shown $274.3930.6%142025
Abbott Laboratories Unresolved — no canonical attribution shown $125.7314.0%12025
ABBVIE INC. Unresolved — no canonical attribution shown $102.3611.4%72025
Lilly USA, LLC Unresolved — no canonical attribution shown $60.506.7%42025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $56.466.3%32025
Exact Sciences Corporation Unresolved — no canonical attribution shown $49.065.5%32025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $43.454.8%22025
Amgen Inc. Unresolved — no canonical attribution shown $41.934.7%32025
Novo Nordisk Inc Unresolved — no canonical attribution shown $29.413.3%22025
Melinta Therapeutics, LLC Unresolved — no canonical attribution shown $22.832.5%12025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.532.3%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $19.812.2%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $18.532.1%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $17.922.0%12025
Pharmacosmos Therapeutics Inc. Unresolved — no canonical attribution shown $14.851.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$897.7645

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
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $148.26 7 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $148.26 7 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $126.13 7 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $125.73 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $114.40 6 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $102.36 7 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $88.34 6 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $80.12 4 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $60.50 4 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $60.50 4 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $56.46 3 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $56.46 3 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $49.06 3 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $43.45 2 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $41.93 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $29.41 2 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $29.41 2 2025
Source payment records
Kimyrsa
Normalized: kimyrsa
Drug Melinta Therapeutics, LLC $22.83 1 2025
Source payment records
Orbactiv
Normalized: orbactiv
Drug Melinta Therapeutics, LLC $22.83 1 2025
Source payment records
Rezzayo
Normalized: rezzayo
Drug Melinta Therapeutics, LLC $22.83 1 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $20.53 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $19.81 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $18.53 1 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $17.92 1 2025
Source payment records
MONOFERRIC
Normalized: monoferric
Drug Pharmacosmos Therapeutics Inc. $14.85 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $13.83 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $11.73 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
ELIQUIS
eliquis
2025 Eliquis 2024 135 exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 108 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 113 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
21 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
58 12
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Myrbetriq
open payments reported associated product
CMS Open Payments — General Payments
16 supporting records · 16 recipient NPIs · example record 1238599014
Myrbetriq · 2024
Exact normalized brand match · 1 Part D row
36 suppressed by CMS
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
11 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
32 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
45 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
108 13
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
113 19
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
135 20
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
16 15

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 Calcium424116
Amlodipine BesylateAmlodipine Besylate35498
Pantoprazole SodiumPantoprazole Sodium350110
Losartan PotassiumLosartan Potassium32590
Levothyroxine SodiumLevothyroxine Sodium31579
Rosuvastatin CalciumRosuvastatin Calcium31586
GabapentinGabapentin16535
EliquisApixaban13520
Metoprolol SuccinateMetoprolol Succinate13339
HydrochlorothiazideHydrochlorothiazide13246
LisinoprilLisinopril12838
OzempicSemaglutide11319
Potassium ChloridePotassium Chloride11337
MounjaroTirzepatide10813
OmeprazoleOmeprazole10831
FurosemideFurosemide10536
Tamsulosin HclTamsulosin Hcl10329
MeloxicamMeloxicam10235
ValsartanValsartan9825
SimvastatinSimvastatin9729
Sertraline HclSertraline Hcl9428
ClonazepamClonazepam9313
Trazodone HclTrazodone Hcl8924
Duloxetine HclDuloxetine Hcl8719
Montelukast SodiumMontelukast Sodium8626
AllopurinolAllopurinol8221
Escitalopram OxalateEscitalopram Oxalate8123
SpironolactoneSpironolactone7721
Metformin HclMetformin Hcl7421
CarvedilolCarvedilol7219
Fluoxetine HclFluoxetine Hcl6215
Pravastatin SodiumPravastatin Sodium5915
XareltoRivaroxaban59suppressed
FamotidineFamotidine5821
SynthroidLevothyroxine Sodium5812
EzetimibeEzetimibe5617
Bupropion XlBupropion Hcl5514
Fluticasone PropionateFluticasone Propionate5423
Donepezil HclDonepezil Hcl5212
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav5042
Venlafaxine Hcl ErVenlafaxine Hcl50suppressed
Alendronate SodiumAlendronate Sodium4817
AlprazolamAlprazolam4811
ClopidogrelClopidogrel Bisulfate4615
Metformin Hcl ErMetformin Hcl4616
Zolpidem TartrateZolpidem Tartrate46suppressed
JardianceEmpagliflozin45suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4225
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4115
AtenololAtenolol3912
Ipratropium BromideIpratropium Bromide3917
MethocarbamolMethocarbamol3826
Synjardy XrEmpagliflozin/Metformin Hcl38suppressed
PrednisonePrednisone3724
MyrbetriqMirabegron36suppressed
Benazepril HclBenazepril Hcl34suppressed
FinasterideFinasteride34suppressed
GlimepirideGlimepiride3411
Citalopram HbrCitalopram Hydrobromide33suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3230
Trelegy ElliptaFluticasone/Umeclidin/Vilanter32suppressed
Bupropion Hcl SrBupropion Hcl30suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide30suppressed
Metoprolol TartrateMetoprolol Tartrate30suppressed
Tramadol HclTramadol Hcl2815
AzithromycinAzithromycin2727
Paroxetine HclParoxetine Hcl27suppressed
Doxycycline HyclateDoxycycline Hyclate2619
Lantus SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril25suppressed
Clonidine HclClonidine Hcl24suppressed
PregabalinPregabalin24suppressed
Propranolol Hcl ErPropranolol Hcl23suppressed
JanuviaSitagliptin Phosphate22suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide22suppressed
RamiprilRamipril22suppressed
Spironolactone-HctzSpironolact/Hydrochlorothiazid22suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol21suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
IrbesartanIrbesartan21suppressed
LinzessLinaclotide21suppressed
LorazepamLorazepam21suppressed
Azelastine HclAzelastine Hcl2011
ChlorthalidoneChlorthalidone20suppressed
EntrestoSacubitril/Valsartan20suppressed
ValacyclovirValacyclovir Hcl2013
EstradiolEstradiol1811
MethylprednisoloneMethylprednisolone1814
TelmisartanTelmisartan17suppressed
FluconazoleFluconazole1613
PaxlovidNirmatrelvir/Ritonavir1615
Triamcinolone AcetonideTriamcinolone Acetonide1511
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid15suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
Bisoprolol FumarateBisoprolol Fumarate14suppressed
Hydralazine HclHydralazine Hcl14suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic14suppressed
Naproxen SodiumNaproxen Sodium14suppressed
NitrofurantoinNitrofurantoin Macrocrystal1413
Ondansetron HclOndansetron Hcl14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Arnuity ElliptaFluticasone Furoate13suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Labetalol HclLabetalol Hcl13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
BreynaBudesonide/Formoterol Fumarate12suppressed
Ondansetron OdtOndansetron12suppressed
RepaglinideRepaglinide12suppressed
TrintellixVortioxetine Hydrobromide12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
CephalexinCephalexin11suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)11suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate11suppressed
JentaduetoLinagliptin/Metformin Hcl11suppressed
KerendiaFinerenone11suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed
MetronidazoleMetronidazole11suppressed
TemazepamTemazepam11suppressed

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 $897.76 · 45 records PFIZER INC. ABRYSVO, AIRSUPRA, AREXVY, CAPVAXIVE, COMIRNATY, Cologuard Collection Kit, ELIQUIS, FREESTYLE LIBRE 3, GVOKE HYPOPEN, Kerendia, Kimyrsa, MONOFERRIC, MOUNJARO, NURTEC ODT, OTEZLA, Orbactiv, Ozempic, PREVNAR 20, QULIPTA, REPATHA, Rezzayo, Rybelsus, SHINGRIX, UBRELVY, Veozah, ZAVZPRET, ZEPBOUND 10
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