Healthcare provider profile · identity verified

John Zajecka, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · SKOKIE, IL · NPI 1275661399

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 Zajecka, M.D. received $3,892.79 in general payments during 2025 across 107 reported records.

ABBVIE INC. accounted for 42.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 25 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Auvelity, Caplyta, Trintellix.

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 Auvelity as an associated drug or biological on 116023 records involving 35298 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Auvelity by this doctor in 2024.

ITI, Inc. (d/b/a Intra-Cellular Therapies, 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 CAPLYTA as an associated drug or biological on 211855 records involving 46143 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Caplyta by this doctor in 2024.

Janssen 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 Caplyta as an associated drug or biological on 11 records involving 9 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Caplyta by this doctor in 2024.

Takeda Pharmaceuticals U.S.A., 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 TRINTELLIX as an associated drug or biological on 37075 records involving 14402 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Trintellix by this doctor in 2024.

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

Payment overview · 2025

General Payments

$3,892.79

107 reported records · 20 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
ABBVIE INC. Unresolved — no canonical attribution shown $1,641.8442.2%172025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $501.3212.9%212025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $273.817.0%102025
Alkermes, Inc. Unresolved — no canonical attribution shown $248.136.4%92025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $234.896.0%112025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $229.625.9%92025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $117.203.0%42025
Lundbeck LLC Unresolved — no canonical attribution shown $105.742.7%42025
Corium, LLC Unresolved — no canonical attribution shown $85.892.2%42025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $58.861.5%32025
Noven Therapeutics, LLC Unresolved — no canonical attribution shown $54.981.4%32025
Almatica Pharma LLC Unresolved — no canonical attribution shown $52.591.4%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $52.421.4%22025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $50.951.3%22025
Bausch Health US, LLC Unresolved — no canonical attribution shown $46.731.2%22025
LivaNova USA, Inc. Unresolved — no canonical attribution shown $41.431.1%12025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $31.450.8%12025
HARMONY BIOSCIENCES LLC Unresolved — no canonical attribution shown $31.380.8%12025
Braeburn Inc. Unresolved — no canonical attribution shown $17.090.4%12025
Abbott Laboratories Unresolved — no canonical attribution shown $16.470.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,542.79106
Consulting Fee$1,350.001

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
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $501.32 21 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $291.84 16 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $284.53 13 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $273.81 10 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $248.13 9 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $196.67 8 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $149.40 6 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $117.20 4 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $85.89 4 2025
Source payment records
Jornay PM
Normalized: jornay pm
Drug Collegium Pharmaceutical, Inc. $58.86 3 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Lundbeck LLC $56.10 2 2025
Source payment records
HETLIOZ
Normalized: hetlioz
Drug Vanda Pharmaceuticals Inc. $55.28 2 2025
Source payment records
Xelstrym
Normalized: xelstrym
Drug Noven Therapeutics, LLC $54.98 3 2025
Source payment records
LOREEV XR
Normalized: loreev xr
Drug Almatica Pharma LLC $52.59 1 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $52.42 2 2025
Source payment records
TRINTELLIX
Normalized: trintellix
Drug Takeda Pharmaceuticals U.S.A., Inc. $50.95 2 2025
Source payment records
APLENZIN
Normalized: aplenzin
Drug Bausch Health US, LLC $46.73 2 2025
Source payment records
WELLBUTRIN
Normalized: wellbutrin
Drug Bausch Health US, LLC $46.73 2 2025
Source payment records
VNS THERAPY SYMMETRY MODEL 8103 GENERATOR
Normalized: vns therapy symmetry model 8103 generator
Device LivaNova USA, Inc. $41.43 1 2025
Source payment records
Sunosi
Normalized: sunosi
Drug Axsome Therapeutics, Inc. $32.95 1 2025
Source payment records
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc $31.45 1 2025
Source payment records
WAKIX
Normalized: wakix
Drug HARMONY BIOSCIENCES LLC $31.38 1 2025
Source payment records
BRIXADI
Normalized: brixadi
Drug Braeburn Inc. $17.09 1 2025
Source payment records
Secuado
Normalized: secuado
Drug Noven Therapeutics, LLC $16.67 1 2025
Source payment records
INFINITY
Normalized: infinity
Device Abbott Laboratories $16.47 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
Auvelity
auvelity
2025 Auvelity 2024 29
Beneficiary count suppressed
exact normalized Medicare Part D
CAPLYTA
caplyta
2025 Caplyta 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
TRINTELLIX
trintellix
2025 Trintellix 2024 27
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
Axsome Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 Auvelity
open payments reported associated product
CMS Open Payments — General Payments
116023 supporting records · 35298 recipient NPIs · example record 1235293064
Auvelity · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
Exact reporting entity; no affiliate inference
2025 CAPLYTA
open payments reported associated product
CMS Open Payments — General Payments
211855 supporting records · 46143 recipient NPIs · example record 1241243071
Caplyta · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Janssen Pharmaceuticals, Inc
Exact reporting entity; no affiliate inference
2025 Caplyta
open payments reported associated product
CMS Open Payments — General Payments
11 supporting records · 9 recipient NPIs · example record 1174547314
Caplyta · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Takeda Pharmaceuticals U.S.A., Inc.
Exact reporting entity; no affiliate inference
2025 TRINTELLIX
open payments reported associated product
CMS Open Payments — General Payments
37075 supporting records · 14402 recipient NPIs · example record 1223616266
Trintellix · 2024
Exact normalized brand match · 1 Part D row
27 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
Paroxetine HclParoxetine Hcl78suppressed
Duloxetine HclDuloxetine Hcl7116
GabapentinGabapentin6212
Lithium Carbonate ErLithium Carbonate61suppressed
ClonazepamClonazepam5911
Trazodone HclTrazodone Hcl5614
AlprazolamAlprazolam5516
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine50suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium49suppressed
Zolpidem TartrateZolpidem Tartrate4911
DiazepamDiazepam44suppressed
TemazepamTemazepam41suppressed
LamotrigineLamotrigine40suppressed
MirtazapineMirtazapine32suppressed
RisperidoneRisperidone32suppressed
AuvelityDextromethorphan Hbr/Bupropion29suppressed
LorazepamLorazepam27suppressed
TrintellixVortioxetine Hydrobromide27suppressed
Bupropion Hcl SrBupropion Hcl25suppressed
Icosapent EthylIcosapent Ethyl25suppressed
Bupropion XlBupropion Hcl23suppressed
Sertraline HclSertraline Hcl22suppressed
Dextroamphetamine SulfateDextroamphetamine Sulfate20suppressed
Quetiapine FumarateQuetiapine Fumarate19suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
AripiprazoleAripiprazole16suppressed
ArmodafinilArmodafinil16suppressed
Doxepin HclDoxepin Hcl16suppressed
Nortriptyline HclNortriptyline Hcl16suppressed
Escitalopram OxalateEscitalopram Oxalate15suppressed
OxazepamOxazepam15suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate14suppressed
CaplytaLumateperone Tosylate13suppressed
LidocaineLidocaine11suppressed
Methylphenidate HclMethylphenidate Hcl11suppressed
PristiqDesvenlafaxine Succinate11suppressed

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 $3,892.79 · 107 records ABBVIE INC. ABILIFY ASIMTUFII, APLENZIN, ARISTADA, Auvelity, Azstarys, BRIXADI, CAPLYTA, COBENFY, FANAPT, HETLIOZ, INFINITY, INGREZZA, Jornay PM, LOREEV XR, LYBALVI, REXULTI, SPRAVATO, Secuado, Sunosi, TRINTELLIX, VNS THERAPY SYMMETRY MODEL 8103 GENERATOR, VRAYLAR, WAKIX, WELLBUTRIN, Xelstrym 4
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