Healthcare provider profile · identity verified

Yakov Sherk, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · GAHANNA, OH · NPI 1740449198

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 Yakov Sherk, MD received $1,308.37 in general payments during 2025 across 81 reported records.

E.R. Squibb & Sons, L.L.C. accounted for 26.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 18 associated products.

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

ABBVIE 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 VRAYLAR as an associated drug or biological on 377741 records involving 62704 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Vraylar 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 22 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 22 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 53 claims for Invega Sustenna 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 19 claims for Abilify Maintena 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 REXULTI as an associated drug or biological on 71829 records involving 25812 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Rexulti 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 44 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 19 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 20 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 19 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 20 claims for Rexulti by this doctor in 2024.

Vanda 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 HETLIOZ as an associated drug or biological on 22380 records involving 6461 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Hetlioz by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,308.37

81 reported records · 15 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
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $350.0826.8%102025
ABBVIE INC. Unresolved — no canonical attribution shown $271.7920.8%432025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $123.909.5%22025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $109.748.4%52025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $90.536.9%42025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $76.305.8%32025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $58.914.5%32025
Alkermes, Inc. Unresolved — no canonical attribution shown $47.023.6%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $42.223.2%22025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $39.843.0%22025
Otsuka Pharmaceutical Development & Commercialization, Inc. Unresolved — no canonical attribution shown $24.281.9%12025
Lundbeck LLC Unresolved — no canonical attribution shown $19.421.5%12025
Supernus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.141.5%12025
Luye Pharma (USA) Ltd. Unresolved — no canonical attribution shown $17.621.4%12025
Tris Pharma Inc Unresolved — no canonical attribution shown $17.581.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,308.3781

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. $350.08 10 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $271.79 43 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $109.74 5 2025
Source payment records
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc $106.12 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $90.53 4 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $76.30 3 2025
Source payment records
HETLIOZ
Normalized: hetlioz
Drug Vanda Pharmaceuticals Inc. $54.79 2 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $47.02 2 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $47.02 2 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $42.22 2 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Otsuka America Pharmaceutical, Inc. $41.24 2 2025
Source payment records
ABILIFY MAINTENA
Normalized: abilify maintena
Drug Otsuka America Pharmaceutical, Inc. $41.24 2 2025
Source payment records
UZEDY
Normalized: uzedy
Drug Teva Pharmaceuticals USA, Inc. $39.84 2 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $37.09 2 2025
Source payment records
Qelbree
Normalized: qelbree
Drug Supernus Pharmaceuticals, Inc. $19.14 1 2025
Source payment records
INVEGA SUSTENNA
Normalized: invega sustenna
Drug Janssen Pharmaceuticals, Inc $17.78 1 2025
Source payment records
ERZOFRI EXTENDED-RELEASE
Normalized: erzofri extended release
Drug Luye Pharma (USA) Ltd. $17.62 1 2025
Source payment records
Dyanavel XR
Normalized: dyanavel xr
Drug Tris Pharma Inc $17.58 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 19
Beneficiary count suppressed
exact normalized Medicare Part D
CAPLYTA
caplyta
2025 Caplyta 2024 22
Beneficiary count suppressed
exact normalized Medicare Part D
HETLIOZ
hetlioz
2025 Hetlioz 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
INGREZZA
ingrezza
2025 Ingrezza 2024 44
Beneficiary count suppressed
exact normalized Medicare Part D
INVEGA SUSTENNA
invega sustenna
2025 Invega Sustenna 2024 53
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 20
Beneficiary count suppressed
exact normalized Medicare Part D
VRAYLAR
vraylar
2025 Vraylar 2024 12
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 VRAYLAR
open payments reported associated product
CMS Open Payments — General Payments
377741 supporting records · 62704 recipient NPIs · example record 1201352550
Vraylar · 2024
Exact normalized brand match · 1 Part D row
12 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
22 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
22 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
53 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
19 suppressed by CMS
Lundbeck LLC
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
71829 supporting records · 25812 recipient NPIs · example record 1251759986
Rexulti · 2024
Exact normalized brand match · 1 Part D row
20 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
44 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
19 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
20 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
19 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
20 suppressed by CMS
Vanda Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 HETLIOZ
open payments reported associated product
CMS Open Payments — General Payments
22380 supporting records · 6461 recipient NPIs · example record 1232940535
Hetlioz · 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
Trazodone HclTrazodone Hcl24835
Quetiapine FumarateQuetiapine Fumarate23125
AlprazolamAlprazolam17613
Buspirone HclBuspirone Hcl17127
Bupropion XlBupropion Hcl14020
LorazepamLorazepam13215
LamotrigineLamotrigine12213
Escitalopram OxalateEscitalopram Oxalate11617
Duloxetine HclDuloxetine Hcl11014
Venlafaxine Hcl ErVenlafaxine Hcl10312
GabapentinGabapentin9311
Bupropion Hcl SrBupropion Hcl9018
ClonazepamClonazepam80suppressed
Hydroxyzine PamoateHydroxyzine Pamoate7316
Lurasidone HclLurasidone Hcl71suppressed
MirtazapineMirtazapine6811
Fluoxetine HclFluoxetine Hcl67suppressed
Sertraline HclSertraline Hcl67suppressed
OlanzapineOlanzapine64suppressed
Ziprasidone HclZiprasidone Hcl59suppressed
TopiramateTopiramate58suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine55suppressed
Invega SustennaPaliperidone Palmitate53suppressed
AripiprazoleAripiprazole52suppressed
ClozapineClozapine50suppressed
DiazepamDiazepam49suppressed
Lithium Carbonate ErLithium Carbonate46suppressed
Paliperidone ErPaliperidone45suppressed
IngrezzaValbenazine Tosylate44suppressed
Lithium CarbonateLithium Carbonate43suppressed
Hydroxyzine HclHydroxyzine Hcl40suppressed
Divalproex Sodium ErDivalproex Sodium37suppressed
Paroxetine HclParoxetine Hcl37suppressed
BaclofenBaclofen3511
OxcarbazepineOxcarbazepine32suppressed
Prazosin HclPrazosin Hcl32suppressed
Benztropine MesylateBenztropine Mesylate29suppressed
TrintellixVortioxetine Hydrobromide27suppressed
Bupropion HclBupropion Hcl26suppressed
Clonidine HclClonidine Hcl23suppressed
CaplytaLumateperone Tosylate22suppressed
Methylphenidate HclMethylphenidate Hcl22suppressed
Asenapine MaleateAsenapine Maleate21suppressed
RexultiBrexpiprazole20suppressed
RisperidoneRisperidone20suppressed
Abilify MaintenaAripiprazole19suppressed
Citalopram HbrCitalopram Hydrobromide19suppressed
Zolpidem TartrateZolpidem Tartrate17suppressed
Divalproex SodiumDivalproex Sodium15suppressed
Tizanidine HclTizanidine Hcl15suppressed
PerphenazinePerphenazine13suppressed
TegretolCarbamazepine13suppressed
Vilazodone HclVilazodone Hcl13suppressed
HetliozTasimelteon12suppressed
VraylarCariprazine Hcl12suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl11suppressed

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 $1,308.37 · 81 records E.R. Squibb & Sons, L.L.C. ABILIFY ASIMTUFII, ABILIFY MAINTENA, ARISTADA, Auvelity, CAPLYTA, COBENFY, Dyanavel XR, ERZOFRI EXTENDED-RELEASE, FANAPT, HETLIOZ, INGREZZA, INVEGA SUSTENNA, LYBALVI, Qelbree, REXULTI, SPRAVATO, UZEDY, VRAYLAR 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