Healthcare provider profile · identity verified

Nancy M Acuna Diaz, ARNP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · MIAMI, FL · NPI 1215518154

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 Nancy M Acuna Diaz, ARNP received $23.15 in general payments during 2025 across 1 reported records.

Otsuka America Pharmaceutical, Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

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 34 claims for Rexulti by this doctor in 2024.

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

Payment overview · 2025

General Payments

$23.15

1 reported records · 1 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
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $23.15100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$23.151

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
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $23.15 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
REXULTI
rexulti
2025 Rexulti 2024 34
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
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
34 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 Fumarate3971425
MirtazapineMirtazapine2646452
Buspirone HclBuspirone Hcl2519414
Trazodone HclTrazodone Hcl2510421
Sertraline HclSertraline Hcl1836294
Memantine HclMemantine Hcl1833310
Escitalopram OxalateEscitalopram Oxalate1664295
TemazepamTemazepam1187205
ClonazepamClonazepam1163167
Citalopram HbrCitalopram Hydrobromide1018172
AlprazolamAlprazolam1013141
LorazepamLorazepam932119
Donepezil HclDonepezil Hcl860133
Divalproex SodiumDivalproex Sodium49468
RisperidoneRisperidone46963
Duloxetine HclDuloxetine Hcl32958
Paroxetine HclParoxetine Hcl32455
OlanzapineOlanzapine32245
HaloperidolHaloperidol29148
Chlordiazepoxide HclChlordiazepoxide Hcl24738
Benztropine MesylateBenztropine Mesylate21139
Zolpidem TartrateZolpidem Tartrate20332
AripiprazoleAripiprazole16326
Fluoxetine HclFluoxetine Hcl14932
Bupropion XlBupropion Hcl11116
Divalproex Sodium ErDivalproex Sodium10514
Chlorpromazine HclChlorpromazine Hcl87suppressed
Memantine Hcl ErMemantine Hcl8020
OxcarbazepineOxcarbazepine76suppressed
Amitriptyline HclAmitriptyline Hcl71suppressed
Bupropion Hcl SrBupropion Hcl6814
Hydroxyzine HclHydroxyzine Hcl6512
LamotrigineLamotrigine63suppressed
Trifluoperazine HclTrifluoperazine Hcl5711
Venlafaxine Hcl ErVenlafaxine Hcl5413
Prazosin HclPrazosin Hcl5313
Bupropion HclBupropion Hcl52suppressed
Valproic AcidValproic Acid (As Sodium Salt)52suppressed
Haloperidol DecanoateHaloperidol Decanoate45suppressed
Quetiapine Fumarate ErQuetiapine Fumarate43suppressed
Lurasidone HclLurasidone Hcl40suppressed
Hydroxyzine PamoateHydroxyzine Pamoate39suppressed
GabapentinGabapentin3811
RexultiBrexpiprazole34suppressed
Dicyclomine HclDicyclomine Hcl33suppressed
RivastigmineRivastigmine30suppressed
DiazepamDiazepam29suppressed
TopiramateTopiramate29suppressed
Nortriptyline HclNortriptyline Hcl25suppressed
Paliperidone ErPaliperidone25suppressed
Valproic AcidValproic Acid22suppressed
Doxepin HclDoxepin Hcl21suppressed
Venlafaxine HclVenlafaxine Hcl19suppressed
LevetiracetamLevetiracetam17suppressed
Lithium CarbonateLithium Carbonate17suppressed
LisinoprilLisinopril16suppressed
IbuprofenIbuprofen13suppressed
Imipramine HclImipramine Hcl13suppressed
PerphenazinePerphenazine13suppressed
Folic AcidFolic Acid12suppressed
Invega SustennaPaliperidone Palmitate12suppressed
JardianceEmpagliflozin12suppressed
CarbamazepineCarbamazepine11suppressed

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 $23.15 · 1 records Otsuka America Pharmaceutical, Inc. REXULTI 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