Healthcare provider profile · identity verified

Dina Irwin, PMHNP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Psychiatric/Mental Health · SIOUX CITY, IA · NPI 1033890918

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 Dina Irwin, PMHNP received $320.40 in general payments during 2025 across 18 reported records.

Supernus Pharmaceuticals, Inc. accounted for 20.9% 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: 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 27 claims for Vraylar by this doctor in 2024.

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

Payment overview · 2025

General Payments

$320.40

18 reported records · 9 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
Supernus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $66.9520.9%42025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $48.1415.0%32025
BioMarin Pharmaceutical Inc. Unresolved — no canonical attribution shown $39.0112.2%22025
SANOFI PASTEUR INC. Unresolved — no canonical attribution shown $37.5011.7%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $36.9711.5%22025
ABBVIE INC. Unresolved — no canonical attribution shown $28.608.9%22025
Neurelis, Inc. Neurelis, Inc.
exact · evidence 2025-02-20
$26.008.1%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $23.577.4%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $13.664.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$320.4018

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
Qelbree
Normalized: qelbree
Drug Supernus Pharmaceuticals, Inc. $66.95 4 2025
Source payment records
Jornay PM
Normalized: jornay pm
Drug Collegium Pharmaceutical, Inc. $48.14 3 2025
Source payment records
VOXZOGO 1.2mg
Normalized: voxzogo 1 2mg
Drug BioMarin Pharmaceutical Inc. $39.01 2 2025
Source payment records
BEYFORTUS
Normalized: beyfortus
Biological SANOFI PASTEUR INC. $37.50 2 2025
Source payment records
VAXELIS
Normalized: vaxelis
Biological Merck Sharp & Dohme LLC, SANOFI PASTEUR INC. $32.08 2 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $28.60 2 2025
Source payment records
VALTOCO
Normalized: valtoco
Drug Neurelis, Inc. $26.00 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $23.57 1 2025
Source payment records
PENMENVY
Normalized: penmenvy
Biological GlaxoSmithKline, LLC. $19.97 1 2025
Source payment records
BEXSERO
Normalized: bexsero
Biological GlaxoSmithKline, LLC. $17.00 1 2025
Source payment records
ENFLONSIA
Normalized: enflonsia
Drug Merck Sharp & Dohme LLC $13.66 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $13.66 1 2025
Source payment records
VAXNEUVANCE
Normalized: vaxneuvance
Biological Merck Sharp & Dohme LLC $13.66 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
VRAYLAR
vraylar
2025 Vraylar 2024 27
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
27 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
Quetiapine FumarateQuetiapine Fumarate7612
Fluoxetine HclFluoxetine Hcl66suppressed
Trazodone HclTrazodone Hcl6514
RexultiBrexpiprazole63suppressed
AlprazolamAlprazolam59suppressed
Venlafaxine Hcl ErVenlafaxine Hcl50suppressed
Sertraline HclSertraline Hcl47suppressed
AripiprazoleAripiprazole4314
ClonazepamClonazepam38suppressed
Bupropion XlBupropion Hcl32suppressed
Prazosin HclPrazosin Hcl31suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine2911
SpravatoEsketamine Hcl27suppressed
VraylarCariprazine Hcl27suppressed
Buspirone HclBuspirone Hcl26suppressed
MirtazapineMirtazapine23suppressed
Escitalopram OxalateEscitalopram Oxalate22suppressed
OlanzapineOlanzapine22suppressed
LamotrigineLamotrigine21suppressed
Zolpidem TartrateZolpidem Tartrate20suppressed
Duloxetine HclDuloxetine Hcl19suppressed
DiazepamDiazepam18suppressed
LorazepamLorazepam17suppressed
OxcarbazepineOxcarbazepine16suppressed
Clonidine HclClonidine Hcl15suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate15suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine15suppressed
Lithium Carbonate ErLithium Carbonate15suppressed
Doxepin HclDoxepin Hcl14suppressed
Divalproex Sodium ErDivalproex Sodium11suppressed
LybalviOlanzapine/Samidorphan Malate11suppressed
Vilazodone HclVilazodone 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 $320.40 · 18 records Supernus Pharmaceuticals, Inc. BEXSERO, BEYFORTUS, ENFLONSIA, GARDASIL 9, Jornay PM, PENMENVY, Qelbree, VALTOCO, VAXELIS, VAXNEUVANCE, VOXZOGO 1.2mg, VRAYLAR, Wegovy 1
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