Healthcare provider profile · identity verified

Walter J Duffy, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · LINCOLN, NE · NPI 1093853368

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 Walter J Duffy, MD received $2,369.21 in general payments during 2025 across 170 reported records.

ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) accounted for 18.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 20 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Abilify Maintena, Aristada, Caplyta, Invega Sustenna, Lybalvi, Rexulti, Sunosi.

Alkermes, 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 ARISTADA as an associated drug or biological on 76041 records involving 17486 distinct recipient NPIs. Public Medicare Part D data also shows 93 claims for Aristada by this doctor in 2024.

Alkermes, 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 LYBALVI as an associated drug or biological on 93784 records involving 20135 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Lybalvi by this doctor in 2024.

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 Sunosi as an associated drug or biological on 19758 records involving 6305 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Sunosi 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 97 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 97 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 INVEGA SUSTENNA as an associated drug or biological on 39068 records involving 11966 distinct recipient NPIs. Public Medicare Part D data also shows 116 claims for Invega Sustenna 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 INVEGA TRINZA as an associated drug or biological on 8191 records involving 2146 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Invega Trinza 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 49 claims for Abilify Maintena 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 NUEDEXTA as an associated drug or biological on 393 records involving 285 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Nuedexta 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Rexulti by this doctor in 2024.

Otsuka Pharmaceutical Development & Commercialization, 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 87 records involving 83 distinct recipient NPIs. Public Medicare Part D data also shows 49 claims for Abilify Maintena by this doctor in 2024.

Otsuka Pharmaceutical Development & Commercialization, 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 REXULTI as an associated drug or biological on 1463 records involving 1088 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Rexulti by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,369.21

170 reported records · 17 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 $445.1818.8%262025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $342.2014.4%152025
Alkermes, Inc. Unresolved — no canonical attribution shown $302.7612.8%342025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $297.7712.6%302025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $290.6112.3%182025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $218.789.2%232025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $82.313.5%52025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $70.903.0%42025
Biogen, Inc. Unresolved — no canonical attribution shown $63.772.7%32025
Corium, LLC Unresolved — no canonical attribution shown $57.872.4%22025
Supernus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $52.272.2%22025
HARMONY BIOSCIENCES LLC Unresolved — no canonical attribution shown $40.411.7%22025
Tris Pharma Inc Unresolved — no canonical attribution shown $31.151.3%22025
Almatica Pharma LLC Unresolved — no canonical attribution shown $22.851.0%12025
Otsuka Pharmaceutical Development & Commercialization, Inc. Unresolved — no canonical attribution shown $22.220.9%12025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $14.610.6%12025
Avadel CNS Pharmaceuticals, LLC Unresolved — no canonical attribution shown $13.550.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,269.22169
Education$99.991

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.) $445.18 26 2025
Source payment records
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $342.20 15 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $302.76 34 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $302.76 34 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $218.78 23 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $208.97 22 2025
Source payment records
ABILIFY MAINTENA
Normalized: abilify maintena
Drug Otsuka America Pharmaceutical, Inc. $146.00 9 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $144.61 9 2025
Source payment records
Sunosi
Normalized: sunosi
Drug Axsome Therapeutics, Inc. $88.80 8 2025
Source payment records
INVEGA SUSTENNA
Normalized: invega sustenna
Drug Janssen Pharmaceuticals, Inc $82.31 5 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $70.90 4 2025
Source payment records
ZURZUVAE
Normalized: zurzuvae
Drug Biogen, Inc. $63.77 3 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $57.87 2 2025
Source payment records
Qelbree
Normalized: qelbree
Drug Supernus Pharmaceuticals, Inc. $52.27 2 2025
Source payment records
WAKIX
Normalized: wakix
Drug HARMONY BIOSCIENCES LLC $40.41 2 2025
Source payment records
Dyanavel XR
Normalized: dyanavel xr
Drug Tris Pharma Inc $31.15 2 2025
Source payment records
LOREEV XR
Normalized: loreev xr
Drug Almatica Pharma LLC $22.85 1 2025
Source payment records
REJOYN
Normalized: rejoyn
Device Otsuka Pharmaceutical Development & Commercialization, Inc. $22.22 1 2025
Source payment records
  • 2025-12-17 · Otsuka Pharmaceutical Development & Commercialization, Inc. · $22.22 · Open Payments source
Jornay PM
Normalized: jornay pm
Drug Collegium Pharmaceutical, Inc. $14.61 1 2025
Source payment records
LUMRYZ
Normalized: lumryz
Drug Avadel CNS Pharmaceuticals, LLC $13.55 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
ABILIFY MAINTENA
abilify maintena
2025 Abilify Maintena 2024 49
Beneficiary count suppressed
exact normalized Medicare Part D
ARISTADA
aristada
2025 Aristada 2024 93 exact normalized Medicare Part D
CAPLYTA
caplyta
2025 Caplyta 2024 97 exact normalized Medicare Part D
INVEGA SUSTENNA
invega sustenna
2025 Invega Sustenna 2024 116 exact normalized Medicare Part D
LYBALVI
lybalvi
2025 Lybalvi 2024 15
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 31
Beneficiary count suppressed
exact normalized Medicare Part D
Sunosi
sunosi
2025 Sunosi 2024 28
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
Alkermes, Inc.
Exact reporting entity; no affiliate inference
2025 ARISTADA
open payments reported associated product
CMS Open Payments — General Payments
76041 supporting records · 17486 recipient NPIs · example record 1222428566
Aristada · 2024
Exact normalized brand match · 1 Part D row
93 14
Alkermes, Inc.
Exact reporting entity; no affiliate inference
2025 LYBALVI
open payments reported associated product
CMS Open Payments — General Payments
93784 supporting records · 20135 recipient NPIs · example record 1222428566
Lybalvi · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
Axsome Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 Sunosi
open payments reported associated product
CMS Open Payments — General Payments
19758 supporting records · 6305 recipient NPIs · example record 1235293059
Sunosi · 2024
Exact normalized brand match · 1 Part D row
28 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
97 19
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
97 19
Janssen Pharmaceuticals, Inc
Exact reporting entity; no affiliate inference
2025 INVEGA SUSTENNA
open payments reported associated product
CMS Open Payments — General Payments
39068 supporting records · 11966 recipient NPIs · example record 1174223262
Invega Sustenna · 2024
Exact normalized brand match · 1 Part D row
116 14
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
12 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
49 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 NUEDEXTA
open payments reported associated product
CMS Open Payments — General Payments
393 supporting records · 285 recipient NPIs · example record 1227268901
Nuedexta · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
31 suppressed by CMS
Otsuka Pharmaceutical Development & Commercialization, Inc.
Exact reporting entity; no affiliate inference
2025 ABILIFY MAINTENA
open payments reported associated product
CMS Open Payments — General Payments
87 supporting records · 83 recipient NPIs · example record 1225319985
Abilify Maintena · 2024
Exact normalized brand match · 1 Part D row
49 suppressed by CMS
Otsuka Pharmaceutical Development & Commercialization, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
1463 supporting records · 1088 recipient NPIs · example record 1225319865
Rexulti · 2024
Exact normalized brand match · 1 Part D row
31 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
Bupropion XlBupropion Hcl52569
LorazepamLorazepam49270
Quetiapine FumarateQuetiapine Fumarate45167
AlprazolamAlprazolam44277
LamotrigineLamotrigine42070
Duloxetine HclDuloxetine Hcl41971
Desvenlafaxine Succinate ErDesvenlafaxine Succinate38753
Buspirone HclBuspirone Hcl38372
Trazodone HclTrazodone Hcl31964
ClonazepamClonazepam31858
AripiprazoleAripiprazole30157
MirtazapineMirtazapine27264
OlanzapineOlanzapine26531
Methylphenidate HclMethylphenidate Hcl26043
Escitalopram OxalateEscitalopram Oxalate25043
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine24636
Zolpidem TartrateZolpidem Tartrate22837
Divalproex Sodium ErDivalproex Sodium21629
RisperidoneRisperidone20626
VraylarCariprazine Hcl18326
TopiramateTopiramate18125
Sertraline HclSertraline Hcl15730
Prazosin HclPrazosin Hcl14526
GabapentinGabapentin13729
ClozapineClozapine13211
Hydroxyzine HclHydroxyzine Hcl12840
DiazepamDiazepam11623
Invega SustennaPaliperidone Palmitate11614
Ziprasidone HclZiprasidone Hcl11313
Fluoxetine HclFluoxetine Hcl11122
Venlafaxine Hcl ErVenlafaxine Hcl11024
Lurasidone HclLurasidone Hcl10213
OxcarbazepineOxcarbazepine10114
TemazepamTemazepam10111
CaplytaLumateperone Tosylate9719
AristadaAripiprazole Lauroxil9314
Ropinirole HclRopinirole Hcl9115
Clonidine HclClonidine Hcl8917
Benztropine MesylateBenztropine Mesylate88suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine8219
Citalopram HbrCitalopram Hydrobromide7914
Divalproex SodiumDivalproex Sodium70suppressed
Paliperidone ErPaliperidone7012
Amitriptyline HclAmitriptyline Hcl69suppressed
Atomoxetine HclAtomoxetine Hcl6912
Methylphenidate ErMethylphenidate Hcl67suppressed
Fluvoxamine MaleateFluvoxamine Maleate62suppressed
Naltrexone HclNaltrexone Hcl62suppressed
Vilazodone HclVilazodone Hcl6212
Lithium CarbonateLithium Carbonate60suppressed
Propranolol HclPropranolol Hcl5912
Doxepin HclDoxepin Hcl54suppressed
Donepezil HclDonepezil Hcl5311
ZaleplonZaleplon5211
VyvanseLisdexamfetamine Dimesylate5112
Abilify MaintenaAripiprazole49suppressed
HaloperidolHaloperidol49suppressed
Memantine HclMemantine Hcl4911
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate4814
Bupropion Hcl SrBupropion Hcl4612
ModafinilModafinil43suppressed
EszopicloneEszopiclone41suppressed
GlycopyrrolateGlycopyrrolate40suppressed
PregabalinPregabalin40suppressed
Desmopressin AcetateDesmopressin Acetate38suppressed
IngrezzaValbenazine Tosylate33suppressed
BelsomraSuvorexant31suppressed
RexultiBrexpiprazole31suppressed
SunosiSolriamfetol Hcl28suppressed
Propranolol Hcl ErPropranolol Hcl27suppressed
TrintellixVortioxetine Hydrobromide27suppressed
PerphenazinePerphenazine24suppressed
Venlafaxine HclVenlafaxine Hcl24suppressed
OxazepamOxazepam23suppressed
Dexmethylphenidate HclDexmethylphenidate Hcl22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Vitamin D2Ergocalciferol (Vitamin D2)20suppressed
AmantadineAmantadine Hcl18suppressed
Lithium Carbonate ErLithium Carbonate18suppressed
Dexmethylphenidate Hcl ErDexmethylphenidate Hcl17suppressed
Imipramine HclImipramine Hcl17suppressed
Varenicline TartrateVarenicline Tartrate17suppressed
Pilocarpine HclPilocarpine Hcl16suppressed
LybalviOlanzapine/Samidorphan Malate15suppressed
Zolpidem Tartrate ErZolpidem Tartrate15suppressed
Olanzapine OdtOlanzapine14suppressed
NuedextaDextromethorphan Hbr/Quinidine13suppressed
ComproProchlorperazine12suppressed
Fluvoxamine Maleate ErFluvoxamine Maleate12suppressed
Focalin XrDexmethylphenidate Hcl12suppressed
Invega TrinzaPaliperidone Palmitate12suppressed
Tiagabine HclTiagabine Hcl12suppressed
Trifluoperazine HclTrifluoperazine Hcl12suppressed
Asenapine MaleateAsenapine Maleate11suppressed
Clorazepate DipotassiumClorazepate Dipotassium11suppressed
Hydroxyzine PamoateHydroxyzine Pamoate11suppressed

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 $2,369.21 · 170 records ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) ABILIFY MAINTENA, ARISTADA, AUSTEDO XR, Auvelity, Azstarys, CAPLYTA, COBENFY, Dyanavel XR, INVEGA SUSTENNA, Jornay PM, LOREEV XR, LUMRYZ, LYBALVI, Qelbree, REJOYN, REXULTI, Sunosi, WAKIX, XYWAV, ZURZUVAE 12
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