Healthcare provider profile · identity verified

Kenneth Zemanek, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · ALLENTOWN, PA · NPI 1558316174

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 Kenneth Zemanek, MD received $2,068.47 in general payments during 2025 across 19 reported records.

ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) accounted for 29.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

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 INVEGA TRINZA as an associated drug or biological on 8191 records involving 2146 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Invega Trinza by this doctor in 2024.

Neurocrine BioSciences, 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 INGREZZA as an associated drug or biological on 126456 records involving 27390 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Ingrezza by this doctor in 2024.

Otsuka America Pharmaceutical, 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 ABILIFY MAINTENA as an associated drug or biological on 27924 records involving 10497 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Abilify Maintena by this doctor in 2024.

Teva Pharmaceuticals USA, 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 AUSTEDO as an associated drug or biological on 28 records involving 15 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Austedo by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,068.47

19 reported records · 11 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
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $612.3629.6%52025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $267.8812.9%32025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $249.4812.1%22025
ABBVIE INC. Unresolved — no canonical attribution shown $224.3410.8%22025
Alkermes, Inc. Unresolved — no canonical attribution shown $129.296.2%12025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $124.746.0%12025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $124.746.0%12025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $113.405.5%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $98.964.8%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $98.674.8%12025
Neuronetics, Inc. Unresolved — no canonical attribution shown $24.611.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,041.2018
Education$27.271

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
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $612.36 5 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $267.88 3 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $249.48 2 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $224.34 2 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $129.29 1 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $124.74 1 2025
Source payment records
UZEDY
Normalized: uzedy
Drug Teva Pharmaceuticals USA, Inc. $124.74 1 2025
Source payment records
INVEGA SUSTENNA
Normalized: invega sustenna
Drug Janssen Pharmaceuticals, Inc $113.40 1 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $98.96 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $98.67 1 2025
Source payment records
NEUROSTAR TMS THERAPY SYSTEM
Normalized: neurostar tms therapy system
Device Neuronetics, Inc. $24.61 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
INGREZZA
ingrezza
2025 Ingrezza 2024 29
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
Janssen Pharmaceuticals, Inc
Exact reporting entity; no affiliate inference
2025 INVEGA TRINZA
open payments reported associated product
CMS Open Payments — General Payments
8191 supporting records · 2146 recipient NPIs · example record 1174223262
Invega Trinza · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
Neurocrine BioSciences, Inc.
Exact reporting entity; no affiliate inference
2025 INGREZZA
open payments reported associated product
CMS Open Payments — General Payments
126456 supporting records · 27390 recipient NPIs · example record 1242766729
Ingrezza · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 ABILIFY MAINTENA
open payments reported associated product
CMS Open Payments — General Payments
27924 supporting records · 10497 recipient NPIs · example record 1227267721
Abilify Maintena · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Teva Pharmaceuticals USA, Inc.
Exact reporting entity; no affiliate inference
2025 AUSTEDO
open payments reported associated product
CMS Open Payments — General Payments
28 supporting records · 15 recipient NPIs · example record 1247249192
Austedo · 2024
Exact normalized brand match · 1 Part D row
12 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
AlprazolamAlprazolam46677
Trazodone HclTrazodone Hcl43192
ClonazepamClonazepam40371
LamotrigineLamotrigine40169
LorazepamLorazepam39079
Bupropion XlBupropion Hcl36766
Sertraline HclSertraline Hcl35069
Quetiapine FumarateQuetiapine Fumarate30844
Duloxetine HclDuloxetine Hcl29847
Buspirone HclBuspirone Hcl29256
MirtazapineMirtazapine28347
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine23326
GabapentinGabapentin20840
AripiprazoleAripiprazole20734
Escitalopram OxalateEscitalopram Oxalate20644
OlanzapineOlanzapine19627
Venlafaxine Hcl ErVenlafaxine Hcl17331
Fluoxetine HclFluoxetine Hcl15328
Zolpidem TartrateZolpidem Tartrate15130
RisperidoneRisperidone12520
Paroxetine HclParoxetine Hcl10217
Citalopram HbrCitalopram Hydrobromide9417
Methylphenidate ErMethylphenidate Hcl91suppressed
Divalproex SodiumDivalproex Sodium9011
Desvenlafaxine Succinate ErDesvenlafaxine Succinate7411
Bupropion Hcl SrBupropion Hcl7316
Divalproex Sodium ErDivalproex Sodium7313
Methylphenidate HclMethylphenidate Hcl7011
Doxepin HclDoxepin Hcl6814
Ziprasidone HclZiprasidone Hcl68suppressed
Hydroxyzine HclHydroxyzine Hcl6423
Lithium Carbonate ErLithium Carbonate6413
Benztropine MesylateBenztropine Mesylate59suppressed
Prazosin HclPrazosin Hcl59suppressed
ClozapineClozapine54suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine52suppressed
DiazepamDiazepam52suppressed
Lithium CarbonateLithium Carbonate51suppressed
Nortriptyline HclNortriptyline Hcl5011
Fluvoxamine MaleateFluvoxamine Maleate47suppressed
TopiramateTopiramate44suppressed
OxcarbazepineOxcarbazepine38suppressed
Ropinirole HclRopinirole Hcl38suppressed
Clonidine HclClonidine Hcl37suppressed
Venlafaxine HclVenlafaxine Hcl37suppressed
Propranolol HclPropranolol Hcl36suppressed
ZaleplonZaleplon36suppressed
ArmodafinilArmodafinil34suppressed
Naltrexone HclNaltrexone Hcl31suppressed
Vilazodone HclVilazodone Hcl30suppressed
Alprazolam ErAlprazolam29suppressed
Clomipramine HclClomipramine Hcl29suppressed
IngrezzaValbenazine Tosylate29suppressed
Guanfacine HclGuanfacine Hcl28suppressed
Levothyroxine SodiumLevothyroxine Sodium27suppressed
Methylphenidate Hcl CdMethylphenidate Hcl27suppressed
Lurasidone HclLurasidone Hcl26suppressed
Donepezil HclDonepezil Hcl25suppressed
Olanzapine OdtOlanzapine25suppressed
TemazepamTemazepam25suppressed
Bupropion HclBupropion Hcl22suppressed
Invega TrinzaPaliperidone Palmitate22suppressed
AtenololAtenolol21suppressed
Hydroxyzine PamoateHydroxyzine Pamoate21suppressed
Dexmethylphenidate Hcl ErDexmethylphenidate Hcl19suppressed
LoxapineLoxapine Succinate19suppressed
Memantine HclMemantine Hcl19suppressed
LatudaLurasidone Hcl18suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
Methylphenidate Er (La)Methylphenidate Hcl16suppressed
LevocarnitineLevocarnitine14suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine13suppressed
HaloperidolHaloperidol13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
Quetiapine Fumarate ErQuetiapine Fumarate13suppressed
AustedoDeutetrabenazine12suppressed
Imipramine HclImipramine Hcl12suppressed
LexaproEscitalopram Oxalate12suppressed
Metoprolol TartrateMetoprolol Tartrate12suppressed
Abilify MaintenaAripiprazole11suppressed
Dextroamphetamine SulfateDextroamphetamine Sulfate11suppressed
KlonopinClonazepam11suppressed

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 $2,068.47 · 19 records ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Auvelity, CAPLYTA, COBENFY, FANAPT, INGREZZA, INVEGA SUSTENNA, LYBALVI, NEUROSTAR TMS THERAPY SYSTEM, REXULTI, UZEDY, VRAYLAR 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