Healthcare provider profile · identity verified

Mark S Kosins, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · SAN CLEMENTE, CA · NPI 1457424954

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 Mark S Kosins, MD received $329.90 in general payments during 2025 across 15 reported records.

Vanda Pharmaceuticals Inc. accounted for 25.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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

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 VIIBRYD as an associated drug or biological on 57 records involving 55 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Viibryd 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 19 claims for Caplyta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$329.90

15 reported records · 5 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
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $82.6125.0%42025
Alkermes, Inc. Unresolved — no canonical attribution shown $77.3723.4%42025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $69.9221.2%32025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $55.9917.0%22025
ABBVIE INC. Unresolved — no canonical attribution shown $44.0113.3%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$329.9015

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
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $82.61 4 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $77.37 4 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $69.92 3 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $55.99 2 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $52.13 3 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $44.01 2 2025
Source payment records
HETLIOZ
Normalized: hetlioz
Drug Vanda Pharmaceuticals Inc. $27.29 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
CAPLYTA
caplyta
2025 Caplyta 2024 19
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 VIIBRYD
open payments reported associated product
CMS Open Payments — General Payments
57 supporting records · 55 recipient NPIs · example record 1201398050
Viibryd · 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
19 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
AlprazolamAlprazolam8114
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine8113
LorazepamLorazepam8117
Bupropion XlBupropion Hcl6513
ClonazepamClonazepam64suppressed
Quetiapine FumarateQuetiapine Fumarate5711
Escitalopram OxalateEscitalopram Oxalate5612
GabapentinGabapentin53suppressed
Zolpidem TartrateZolpidem Tartrate52suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate50suppressed
Trazodone HclTrazodone Hcl47suppressed
LamotrigineLamotrigine41suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate36suppressed
DiazepamDiazepam35suppressed
AripiprazoleAripiprazole3311
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine33suppressed
Lurasidone HclLurasidone Hcl29suppressed
TemazepamTemazepam26suppressed
Ziprasidone HclZiprasidone Hcl26suppressed
ClozapineClozapine20suppressed
Sertraline HclSertraline Hcl20suppressed
CaplytaLumateperone Tosylate19suppressed
Methylphenidate HclMethylphenidate Hcl19suppressed
Vilazodone HclVilazodone Hcl19suppressed
Fluoxetine HclFluoxetine Hcl18suppressed
OlanzapineOlanzapine17suppressed
Duloxetine HclDuloxetine Hcl15suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
Dextroamphetamine SulfateDextroamphetamine Sulfate13suppressed
Lithium CarbonateLithium Carbonate13suppressed
Paliperidone ErPaliperidone13suppressed
Quetiapine Fumarate ErQuetiapine Fumarate13suppressed
CarisoprodolCarisoprodol12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl12suppressed
ViibrydVilazodone Hcl12suppressed
Buspirone HclBuspirone Hcl11suppressed
Dextroamphetamine Sulfate ErDextroamphetamine Sulfate11suppressed
Fluvoxamine MaleateFluvoxamine Maleate11suppressed
RexultiBrexpiprazole11suppressed

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 $329.90 · 15 records Vanda Pharmaceuticals Inc. ARISTADA, CAPLYTA, COBENFY, FANAPT, HETLIOZ, LYBALVI, VRAYLAR 2
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