Healthcare provider profile · identity verified

Catherine Gianan, NP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · ROMEOVILLE, IL · NPI 1174616320

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 Catherine Gianan, NP received $2,946.56 in general payments during 2025 across 93 reported records.

Janssen Pharmaceuticals, Inc accounted for 46.3% 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: Austedo Xr, Lybalvi, Rexulti, Trintellix, 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 40 claims for Vraylar by this doctor in 2024.

Alkermes, 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 LYBALVI as an associated drug or biological on 93784 records involving 20135 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Lybalvi 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 33 claims for Rexulti 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 33 claims for Rexulti by this doctor in 2024.

Takeda Pharmaceuticals U.S.A., 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 TRINTELLIX as an associated drug or biological on 37075 records involving 14402 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Trintellix by this doctor in 2024.

Teva Pharmaceuticals USA, 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 AUSTEDO XR as an associated drug or biological on 86263 records involving 23643 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Austedo Xr by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,946.56

93 reported records · 16 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
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $1,364.4646.3%222025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $425.7814.4%162025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $369.6212.5%142025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $173.065.9%32025
ABBVIE INC. Unresolved — no canonical attribution shown $164.915.6%132025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $79.232.7%52025
Alkermes, Inc. Unresolved — no canonical attribution shown $74.882.5%42025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $60.732.1%32025
Lundbeck LLC Unresolved — no canonical attribution shown $54.811.9%32025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $38.571.3%22025
Corium, LLC Unresolved — no canonical attribution shown $38.041.3%22025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $32.031.1%22025
Neuronetics, Inc. Unresolved — no canonical attribution shown $20.510.7%12025
Tris Pharma Inc Unresolved — no canonical attribution shown $17.020.6%12025
Neos Therapeutics, LP Unresolved — no canonical attribution shown $16.790.6%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $16.120.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,021.9987
Travel and Lodging$901.883
Education$22.693

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
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc $1,364.46 22 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $395.05 15 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $369.62 14 2025
Source payment records
Jornay PM
Normalized: jornay pm
Drug Collegium Pharmaceutical, Inc. $173.06 3 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $164.91 13 2025
Source payment records
TRINTELLIX
Normalized: trintellix
Drug Takeda Pharmaceuticals U.S.A., Inc. $79.23 5 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $74.88 4 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $74.88 4 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Otsuka America Pharmaceutical, Inc. $62.64 3 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $60.73 3 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $38.57 2 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $38.04 2 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $32.03 2 2025
Source payment records
ABILIFY MAINTENA
Normalized: abilify maintena
Drug Otsuka America Pharmaceutical, Inc. $22.90 1 2025
Source payment records
NEUROSTAR TMS THERAPY SYSTEM
Normalized: neurostar tms therapy system
Device Neuronetics, Inc. $20.51 1 2025
Source payment records
Dyanavel XR
Normalized: dyanavel xr
Drug Tris Pharma Inc $17.02 1 2025
Source payment records
EXXUA
Normalized: exxua
Drug Neos Therapeutics, LP $16.79 1 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $16.12 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
AUSTEDO XR
austedo xr
2025 Austedo Xr 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
LYBALVI
lybalvi
2025 Lybalvi 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 33
Beneficiary count suppressed
exact normalized Medicare Part D
TRINTELLIX
trintellix
2025 Trintellix 2024 28
Beneficiary count suppressed
exact normalized Medicare Part D
VRAYLAR
vraylar
2025 Vraylar 2024 40
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
40 suppressed by CMS
Alkermes, Inc.
Exact reporting entity; no affiliate inference
2025 LYBALVI
open payments reported associated product
CMS Open Payments — General Payments
93784 supporting records · 20135 recipient NPIs · example record 1222428566
Lybalvi · 2024
Exact normalized brand match · 1 Part D row
12 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
33 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
33 suppressed by CMS
Takeda Pharmaceuticals U.S.A., Inc.
Exact reporting entity; no affiliate inference
2025 TRINTELLIX
open payments reported associated product
CMS Open Payments — General Payments
37075 supporting records · 14402 recipient NPIs · example record 1223616266
Trintellix · 2024
Exact normalized brand match · 1 Part D row
28 suppressed by CMS
Teva Pharmaceuticals USA, Inc.
Exact reporting entity; no affiliate inference
2025 AUSTEDO XR
open payments reported associated product
CMS Open Payments — General Payments
86263 supporting records · 23643 recipient NPIs · example record 1247244228
Austedo Xr · 2024
Exact normalized brand match · 1 Part D row
13 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
ClonazepamClonazepam24842
AlprazolamAlprazolam24041
LorazepamLorazepam15723
Escitalopram OxalateEscitalopram Oxalate13931
Sertraline HclSertraline Hcl11727
Trazodone HclTrazodone Hcl11326
Bupropion XlBupropion Hcl10730
Quetiapine FumarateQuetiapine Fumarate10222
Fluoxetine HclFluoxetine Hcl9822
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine9714
MirtazapineMirtazapine9023
LamotrigineLamotrigine8816
Venlafaxine Hcl ErVenlafaxine Hcl8215
Duloxetine HclDuloxetine Hcl7720
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine65suppressed
Zolpidem TartrateZolpidem Tartrate64suppressed
DiazepamDiazepam61suppressed
Quetiapine Fumarate ErQuetiapine Fumarate53suppressed
AripiprazoleAripiprazole5111
OlanzapineOlanzapine42suppressed
VraylarCariprazine Hcl40suppressed
RexultiBrexpiprazole33suppressed
Benztropine MesylateBenztropine Mesylate32suppressed
Buspirone HclBuspirone Hcl29suppressed
Prazosin HclPrazosin Hcl28suppressed
TrintellixVortioxetine Hydrobromide28suppressed
PerphenazinePerphenazine26suppressed
PrimidonePrimidone25suppressed
Amitriptyline HclAmitriptyline Hcl24suppressed
GabapentinGabapentin23suppressed
RisperidoneRisperidone21suppressed
ZaleplonZaleplon21suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate19suppressed
OxcarbazepineOxcarbazepine18suppressed
Methylphenidate HclMethylphenidate Hcl17suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate16suppressed
Vilazodone HclVilazodone Hcl15suppressed
Clorazepate DipotassiumClorazepate Dipotassium14suppressed
Lurasidone HclLurasidone Hcl14suppressed
Austedo XrDeutetrabenazine13suppressed
Dexmethylphenidate HclDexmethylphenidate Hcl13suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
LybalviOlanzapine/Samidorphan Malate12suppressed
Methylphenidate ErMethylphenidate Hcl12suppressed
Alprazolam ErAlprazolam11suppressed
ArmodafinilArmodafinil11suppressed
Paroxetine HclParoxetine Hcl11suppressed
Venlafaxine HclVenlafaxine 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 $2,946.56 · 93 records Janssen Pharmaceuticals, Inc ABILIFY ASIMTUFII, ABILIFY MAINTENA, ARISTADA, AUSTEDO XR, Auvelity, Azstarys, CAPLYTA, COBENFY, Dyanavel XR, EXXUA, INGREZZA, Jornay PM, LYBALVI, NEUROSTAR TMS THERAPY SYSTEM, REXULTI, SPRAVATO, TRINTELLIX, VRAYLAR 6
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