Healthcare provider profile · identity verified

Peter Y Yamamoto, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · WAIANAE, HI · NPI 1386796589

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 Peter Y Yamamoto, M.D. received $1,575.44 in general payments during 2025 across 41 reported records.

Alkermes, Inc. accounted for 26.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

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

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 13 claims for Aristada 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 93 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.

Janssen Scientific Affairs, 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 INVEGA SUSTENNA as an associated drug or biological on 488 records involving 397 distinct recipient NPIs. Public Medicare Part D data also shows 93 claims for Invega Sustenna by this doctor in 2024.

Janssen Scientific Affairs, 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 INVEGA TRINZA as an associated drug or biological on 23 records involving 23 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Invega Trinza by this doctor in 2024.

Lundbeck 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 ABILIFY MAINTENA as an associated drug or biological on 2902 records involving 986 distinct recipient NPIs. Public Medicare Part D data also shows 25 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 ABILIFY MAINTENA as an associated drug or biological on 27924 records involving 10497 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Abilify Maintena by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,575.44

41 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
Alkermes, Inc. Unresolved — no canonical attribution shown $420.8326.7%122025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $323.3020.5%112025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $224.4314.2%52025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $145.229.2%32025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $125.007.9%12025
Janssen Scientific Affairs, LLC Unresolved — no canonical attribution shown $93.676.0%12025
ABBVIE INC. Unresolved — no canonical attribution shown $81.255.2%32025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $72.344.6%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $38.002.4%22025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $30.271.9%12025
Lundbeck LLC Unresolved — no canonical attribution shown $21.131.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,575.4441

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
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $420.83 12 2025
Source payment records
INVEGA SUSTENNA
Normalized: invega sustenna
Drug Janssen Pharmaceuticals, Inc, Janssen Scientific Affairs, LLC $416.97 12 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $297.55 10 2025
Source payment records
UZEDY
Normalized: uzedy
Drug Teva Pharmaceuticals USA, Inc. $200.40 4 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $145.22 3 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Otsuka America Pharmaceutical, Inc. $125.00 1 2025
Source payment records
ABILIFY MAINTENA
Normalized: abilify maintena
Drug Otsuka America Pharmaceutical, Inc. $125.00 1 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $81.25 3 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $72.34 1 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $38.00 2 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $30.27 1 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $24.03 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC $21.13 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 25
Beneficiary count suppressed
exact normalized Medicare Part D
ARISTADA
aristada
2025 Aristada 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
INVEGA SUSTENNA
invega sustenna
2025 Invega Sustenna 2024 93
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
13 suppressed by CMS
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
93 suppressed by CMS
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
Janssen Scientific Affairs, LLC
Exact reporting entity; no affiliate inference
2025 INVEGA SUSTENNA
open payments reported associated product
CMS Open Payments — General Payments
488 supporting records · 397 recipient NPIs · example record 1174147651
Invega Sustenna · 2024
Exact normalized brand match · 1 Part D row
93 suppressed by CMS
Janssen Scientific Affairs, LLC
Exact reporting entity; no affiliate inference
2025 INVEGA TRINZA
open payments reported associated product
CMS Open Payments — General Payments
23 supporting records · 23 recipient NPIs · example record 1174152815
Invega Trinza · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Lundbeck LLC
Exact reporting entity; no affiliate inference
2025 ABILIFY MAINTENA
open payments reported associated product
CMS Open Payments — General Payments
2902 supporting records · 986 recipient NPIs · example record 1251759994
Abilify Maintena · 2024
Exact normalized brand match · 1 Part D row
25 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
25 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
OlanzapineOlanzapine155suppressed
ClozapineClozapine146suppressed
Divalproex Sodium ErDivalproex Sodium13212
AripiprazoleAripiprazole11513
Quetiapine FumarateQuetiapine Fumarate100suppressed
Invega SustennaPaliperidone Palmitate93suppressed
RisperidoneRisperidone70suppressed
Benztropine MesylateBenztropine Mesylate65suppressed
Sertraline HclSertraline Hcl56suppressed
Olanzapine OdtOlanzapine33suppressed
Lithium Carbonate ErLithium Carbonate29suppressed
Escitalopram OxalateEscitalopram Oxalate26suppressed
Abilify MaintenaAripiprazole25suppressed
Trazodone HclTrazodone Hcl25suppressed
LamotrigineLamotrigine24suppressed
Atorvastatin CalciumAtorvastatin Calcium21suppressed
Paliperidone ErPaliperidone17suppressed
LorazepamLorazepam14suppressed
AristadaAripiprazole Lauroxil13suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
ClonazepamClonazepam13suppressed
Donepezil HclDonepezil Hcl13suppressed
Memantine HclMemantine Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Bupropion XlBupropion Hcl12suppressed
Invega TrinzaPaliperidone Palmitate12suppressed
Amlodipine BesylateAmlodipine Besylate11suppressed
Buspirone HclBuspirone Hcl11suppressed
Lithium CarbonateLithium Carbonate11suppressed
Risperdal ConstaRisperidone Microspheres11suppressed

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 $1,575.44 · 41 records Alkermes, Inc. ABILIFY ASIMTUFII, ABILIFY MAINTENA, ARISTADA, AUSTEDO XR, CAPLYTA, COBENFY, FANAPT, INGREZZA, INVEGA SUSTENNA, LYBALVI, REXULTI, UZEDY, VRAYLAR 7
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