Healthcare provider profile · identity verified

Anthony Charles Simchak, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · LAFAYETTE, IN · NPI 1639176530

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 Anthony Charles Simchak, MD received $105,343.43 in general payments during 2025 across 161 reported records.

Neurocrine BioSciences, Inc. accounted for 59.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 19 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Botox, Briviact, Ingrezza, Nuplazid, Nurtec Odt, Qulipta, Ubrelvy, 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 BOTOX as an associated drug or biological on 140321 records involving 30103 distinct recipient NPIs. Public Medicare Part D data also shows 140 claims for Botox by this doctor in 2024.

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 QULIPTA as an associated drug or biological on 298617 records involving 58957 distinct recipient NPIs. Public Medicare Part D data also shows 70 claims for Qulipta by this doctor in 2024.

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 UBRELVY as an associated drug or biological on 299803 records involving 61203 distinct recipient NPIs. Public Medicare Part D data also shows 58 claims for Ubrelvy by this doctor in 2024.

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.

ACADIA 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 NUPLAZID as an associated drug or biological on 20845 records involving 6448 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Nuplazid 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 35 claims for Ingrezza by this doctor in 2024.

PFIZER 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 53 claims for Nurtec Odt by this doctor in 2024.

UCB, 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 Briviact as an associated drug or biological on 13595 records involving 4444 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Briviact by this doctor in 2024.

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

Payment overview · 2025

General Payments

$105,343.43

161 reported records · 12 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
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $62,475.2959.3%592025
ABBVIE INC. Unresolved — no canonical attribution shown $25,608.9624.3%512025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $14,861.9714.1%232025
PFIZER INC. Unresolved — no canonical attribution shown $1,584.791.5%22025
ARGENX US, INC. Unresolved — no canonical attribution shown $361.920.3%42025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $238.590.2%132025
LivaNova USA, Inc. Unresolved — no canonical attribution shown $66.170.1%32025
TG Therapeutics, Inc. Unresolved — no canonical attribution shown $63.290.1%12025
UCB, Inc. Unresolved — no canonical attribution shown $30.700.0%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $18.710.0%12025
Amgen Inc. Unresolved — no canonical attribution shown $16.670.0%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $16.370.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$72,812.5024
Honoraria$13,475.003
Consulting Fee$10,525.002
Travel and Lodging$4,995.9138
Food and Beverage$3,535.0294

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
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $62,475.29 59 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $15,669.70 36 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $14,861.97 23 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $12,862.45 33 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $1,584.79 2 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $238.59 13 2025
Source payment records
VYVGART
Normalized: vyvgart
Drug ARGENX US, INC. $235.74 2 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $126.18 2 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $113.05 1 2025
Source payment records
VNS THERAPY SENTIVA MODEL 1000 GENERATOR
Normalized: vns therapy sentiva model 1000 generator
Device LivaNova USA, Inc. $66.17 3 2025
Source payment records
BRIUMVI
Normalized: briumvi
Drug TG Therapeutics, Inc. $63.29 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $59.79 1 2025
Source payment records
VYALEV
Normalized: vyalev
Drug ABBVIE INC. $45.72 2 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $19.23 1 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $18.71 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $16.67 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $16.37 1 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $16.22 1 2025
Source payment records
Nayzilam
Normalized: nayzilam
Drug UCB, Inc. $14.48 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
BOTOX
botox
2025 Botox 2024 140 exact normalized Medicare Part D
Briviact
briviact
2025 Briviact 2024 36
Beneficiary count suppressed
exact normalized Medicare Part D
INGREZZA
ingrezza
2025 Ingrezza 2024 35
Beneficiary count suppressed
exact normalized Medicare Part D
NUPLAZID
nuplazid
2025 Nuplazid 2024 17
Beneficiary count suppressed
exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 53 exact normalized Medicare Part D
QULIPTA
qulipta
2025 Qulipta 2024 70 exact normalized Medicare Part D
UBRELVY
ubrelvy
2025 Ubrelvy 2024 58 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 BOTOX
open payments reported associated product
CMS Open Payments — General Payments
140321 supporting records · 30103 recipient NPIs · example record 1201352642
Botox · 2024
Exact normalized brand match · 1 Part D row
140 48
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 QULIPTA
open payments reported associated product
CMS Open Payments — General Payments
298617 supporting records · 58957 recipient NPIs · example record 1201352530
Qulipta · 2024
Exact normalized brand match · 1 Part D row
70 12
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 UBRELVY
open payments reported associated product
CMS Open Payments — General Payments
299803 supporting records · 61203 recipient NPIs · example record 1201352530
Ubrelvy · 2024
Exact normalized brand match · 1 Part D row
58 20
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
ACADIA Pharmaceuticals Inc
Exact reporting entity; no affiliate inference
2025 NUPLAZID
open payments reported associated product
CMS Open Payments — General Payments
20845 supporting records · 6448 recipient NPIs · example record 1247763852
Nuplazid · 2024
Exact normalized brand match · 1 Part D row
17 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
35 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
53 19
UCB, Inc.
Exact reporting entity; no affiliate inference
2025 Briviact
open payments reported associated product
CMS Open Payments — General Payments
13595 supporting records · 4444 recipient NPIs · example record 1224348489
Briviact · 2024
Exact normalized brand match · 1 Part D row
36 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
Donepezil HclDonepezil Hcl415116
Memantine HclMemantine Hcl37396
GabapentinGabapentin27568
ClonazepamClonazepam23640
PregabalinPregabalin17837
Carbidopa-LevodopaCarbidopa/Levodopa14636
LacosamideLacosamide14525
LevetiracetamLevetiracetam14444
BotoxOnabotulinumtoxina14048
ZonisamideZonisamide13730
Tizanidine HclTizanidine Hcl12340
Emgality PenGalcanezumab-Gnlm12116
LamotrigineLamotrigine11628
TopiramateTopiramate11523
Aimovig AutoinjectorErenumab-Aooe10817
Duloxetine HclDuloxetine Hcl10828
ModafinilModafinil10723
Sumatriptan SuccinateSumatriptan Succinate10115
Escitalopram OxalateEscitalopram Oxalate9825
PrimidonePrimidone9823
AmantadineAmantadine Hcl9622
Trazodone HclTrazodone Hcl9623
BaclofenBaclofen9127
Quetiapine FumarateQuetiapine Fumarate8225
RytaryCarbidopa/Levodopa82suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl7919
QuliptaAtogepant7012
Galantamine ErGalantamine Hbr6715
UbrelvyUbrogepant5820
Kesimpta PenOfatumumab57suppressed
Memantine Hcl ErMemantine Hcl5714
Bupropion XlBupropion Hcl5514
Nurtec OdtRimegepant Sulfate5319
PhenobarbitalPhenobarbital53suppressed
MethylprednisoloneMethylprednisolone4834
Propranolol HclPropranolol Hcl4811
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen47suppressed
Dalfampridine ErDalfampridine45suppressed
OxcarbazepineOxcarbazepine4511
Citalopram HbrCitalopram Hydrobromide42suppressed
AlprazolamAlprazolam4114
RizatriptanRizatriptan Benzoate40suppressed
Ropinirole HclRopinirole Hcl4014
Divalproex Sodium ErDivalproex Sodium38suppressed
Buspirone HclBuspirone Hcl37suppressed
BriviactBrivaracetam36suppressed
IngrezzaValbenazine Tosylate35suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa33suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine33suppressed
Naratriptan HclNaratriptan Hcl33suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine31suppressed
Tramadol HclTramadol Hcl31suppressed
EntacaponeEntacapone30suppressed
Vitamin D2Ergocalciferol (Vitamin D2)30suppressed
LorazepamLorazepam29suppressed
OngentysOpicapone27suppressed
Propranolol Hcl ErPropranolol Hcl27suppressed
Sertraline HclSertraline Hcl2711
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)26suppressed
Ondansetron OdtOndansetron26suppressed
Zolpidem Tartrate ErZolpidem Tartrate25suppressed
Prazosin HclPrazosin Hcl24suppressed
AripiprazoleAripiprazole23suppressed
Nortriptyline HclNortriptyline Hcl23suppressed
NuedextaDextromethorphan Hbr/Quinidine23suppressed
Ajovy AutoinjectorFremanezumab-Vfrm22suppressed
ArmodafinilArmodafinil22suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl22suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended22suppressed
Amitriptyline HclAmitriptyline Hcl21suppressed
MyrbetriqMirabegron21suppressed
CarbamazepineCarbamazepine20suppressed
DiazepamDiazepam20suppressed
Ketorolac TromethamineKetorolac Tromethamine20suppressed
TeriflunomideTeriflunomide20suppressed
XcopriCenobamate20suppressed
GocovriAmantadine Hcl19suppressed
Paroxetine HclParoxetine Hcl19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
Meclizine HclMeclizine Hcl18suppressed
Pyridostigmine BromidePyridostigmine Bromide18suppressed
MirtazapineMirtazapine17suppressed
NuplazidPimavanserin Tartrate17suppressed
WakixPitolisant Hcl17suppressed
Diclofenac PotassiumDiclofenac Potassium16suppressed
ClopidogrelClopidogrel Bisulfate14suppressed
Promethazine HclPromethazine Hcl14suppressed
Avonex Pen (4 Pack)Interferon Beta-1a13suppressed
Dimethyl FumarateDimethyl Fumarate13suppressed
Doxepin HclDoxepin Hcl13suppressed
GammaplexImmun Glob G(Igg)/Gly/Iga 0-5013suppressed
HorizantGabapentin Enacarbil13suppressed
NamzaricMemantine Hcl/Donepezil Hcl13suppressed
PrednisonePrednisone13suppressed
Methadone HclMethadone Hcl12suppressed
Methylphenidate ErMethylphenidate Hcl12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
Sodium Chloride0.9 % Sodium Chloride12suppressed
SumatriptanSumatriptan12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
VraylarCariprazine Hcl12suppressed
Atorvastatin CalciumAtorvastatin Calcium11suppressed
Metoprolol TartrateMetoprolol Tartrate11suppressed
Mycophenolate MofetilMycophenolate Mofetil11suppressed
Oxtellar XrOxcarbazepine11suppressed
Solifenacin SuccinateSolifenacin Succinate11suppressed
TemazepamTemazepam11suppressed

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 $105,343.43 · 161 records Neurocrine BioSciences, Inc. BOTOX, BRIUMVI, Briviact, Cologuard Collection Kit, INGREZZA, KESIMPTA, NUPLAZID, NURTEC ODT, Nayzilam, QULIPTA, Symbravo, UBRELVY, UPLIZNA, VNS THERAPY SENTIVA MODEL 1000 GENERATOR, VRAYLAR, VYALEV, VYVGART, VYVGART HYTRULO, ZAVZPRET 8
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