Healthcare provider profile · identity verified

Ernest Todd Ajax, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · WASHINGTON, IA · NPI 1740256502

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 Ernest Todd Ajax, MD received $234.84 in general payments during 2025 across 23 reported records.

PFIZER INC. accounted for 78.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Nurtec Odt.

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 40 claims for Nurtec Odt by this doctor in 2024.

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

Payment overview · 2025

General Payments

$234.84

23 reported records · 3 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 $184.6278.6%212025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$33.2814.2%12025
Biogen, Inc. Unresolved — no canonical attribution shown $16.947.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$234.8423

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
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $184.62 21 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $184.62 21 2025
Source payment records
COREVALVE EVOLUT R
Normalized: corevalve evolut r
Device Medtronic, Inc. $33.28 1 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $16.94 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
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 40
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
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
40 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
Carbidopa-LevodopaCarbidopa/Levodopa47298
Donepezil HclDonepezil Hcl29670
Pramipexole DihydrochloridePramipexole Di-Hcl25758
GabapentinGabapentin20740
Memantine HclMemantine Hcl17334
PregabalinPregabalin17330
Buspirone HclBuspirone Hcl17223
LevetiracetamLevetiracetam15427
ClonazepamClonazepam12227
Propranolol Hcl ErPropranolol Hcl11223
PrimidonePrimidone9318
Trazodone HclTrazodone Hcl8620
Tramadol HclTramadol Hcl76suppressed
Escitalopram OxalateEscitalopram Oxalate7512
BaclofenBaclofen7314
Duloxetine HclDuloxetine Hcl6716
LamotrigineLamotrigine6713
AmantadineAmantadine Hcl6114
Carbidopa-Levodopa ErCarbidopa/Levodopa6011
Ropinirole HclRopinirole Hcl50suppressed
Amitriptyline HclAmitriptyline Hcl4813
Zolpidem TartrateZolpidem Tartrate48suppressed
TopiramateTopiramate43suppressed
Atorvastatin CalciumAtorvastatin Calcium40suppressed
Nurtec OdtRimegepant Sulfate40suppressed
Tizanidine HclTizanidine Hcl4012
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine37suppressed
Fludrocortisone AcetateFludrocortisone Acetate37suppressed
CarbamazepineCarbamazepine36suppressed
Propranolol HclPropranolol Hcl36suppressed
Quetiapine FumarateQuetiapine Fumarate3512
ZonisamideZonisamide33suppressed
EntacaponeEntacapone32suppressed
Doxepin HclDoxepin Hcl29suppressed
OxcarbazepineOxcarbazepine29suppressed
Potassium ChloridePotassium Chloride29suppressed
Aimovig AutoinjectorErenumab-Aooe28suppressed
ClopidogrelClopidogrel Bisulfate27suppressed
Sertraline HclSertraline Hcl27suppressed
CelecoxibCelecoxib24suppressed
MirtazapineMirtazapine23suppressed
Pyridostigmine BromidePyridostigmine Bromide23suppressed
RizatriptanRizatriptan Benzoate23suppressed
Atomoxetine HclAtomoxetine Hcl22suppressed
ClotrimazoleClotrimazole21suppressed
Levothyroxine SodiumLevothyroxine Sodium21suppressed
NabumetoneNabumetone21suppressed
Venlafaxine Hcl ErVenlafaxine Hcl21suppressed
DronabinolDronabinol20suppressed
Dalfampridine ErDalfampridine19suppressed
Fluoxetine HclFluoxetine Hcl19suppressed
Naratriptan HclNaratriptan Hcl19suppressed
Amlodipine BesylateAmlodipine Besylate18suppressed
Rasagiline MesylateRasagiline Mesylate18suppressed
Benztropine MesylateBenztropine Mesylate16suppressed
Eletriptan HbrEletriptan Hydrobromide16suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
Mycophenolate MofetilMycophenolate Mofetil16suppressed
AtenololAtenolol15suppressed
Ajovy AutoinjectorFremanezumab-Vfrm13suppressed
Desipramine HclDesipramine Hcl13suppressed
RivastigmineRivastigmine13suppressed
Venlafaxine HclVenlafaxine Hcl13suppressed
Carbamazepine ErCarbamazepine12suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
Losartan PotassiumLosartan Potassium12suppressed
Methylphenidate HclMethylphenidate Hcl12suppressed
NeuproRotigotine12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
HydrochlorothiazideHydrochlorothiazide11suppressed
Ketorolac TromethamineKetorolac Tromethamine11suppressed
LisinoprilLisinopril11suppressed
ModafinilModafinil11suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended11suppressed

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 $234.84 · 23 records PFIZER INC. COREVALVE EVOLUT R, NURTEC ODT, VUMERITY, ZAVZPRET 1
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