Healthcare provider profile · identity verified

Ko Geng Liuo

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Psychiatric/Mental Health · SANTA ANA, CA · NPI 1841683406

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 Ko Geng Liuo received $1,263.75 in general payments during 2025 across 62 reported records.

Otsuka America Pharmaceutical, Inc. accounted for 27.4% 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: Rexulti.

Janssen 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 INVEGA SUSTENNA as an associated drug or biological on 39068 records involving 11966 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Invega Sustenna 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 18 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

$1,263.75

62 reported records · 11 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 $345.6727.4%182025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $261.5320.7%142025
ABBVIE INC. Unresolved — no canonical attribution shown $150.8511.9%72025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $100.377.9%42025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $88.287.0%42025
Alkermes, Inc. Unresolved — no canonical attribution shown $70.685.6%32025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $65.185.2%42025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $59.264.7%32025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $54.094.3%22025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $45.233.6%22025
Supernus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $22.611.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,263.7562

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. $282.07 15 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $157.26 9 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $150.85 7 2025
Source payment records
UZEDY
Normalized: uzedy
Drug Teva Pharmaceuticals USA, Inc. $104.27 5 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $100.37 4 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $88.28 4 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $70.68 3 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $70.68 3 2025
Source payment records
TRINTELLIX
Normalized: trintellix
Drug Takeda Pharmaceuticals U.S.A., Inc. $65.18 4 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Otsuka America Pharmaceutical, Inc. $63.60 3 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $59.26 3 2025
Source payment records
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc $54.09 2 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $45.23 2 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 18
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
Janssen Pharmaceuticals, Inc
Exact reporting entity; no affiliate inference
2025 INVEGA SUSTENNA
open payments reported associated product
CMS Open Payments — General Payments
39068 supporting records · 11966 recipient NPIs · example record 1174223262
Invega Sustenna · 2024
Exact normalized brand match · 1 Part D row
25 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
18 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
OlanzapineOlanzapine20137
AlprazolamAlprazolam16734
GabapentinGabapentin15747
Quetiapine FumarateQuetiapine Fumarate14937
Trazodone HclTrazodone Hcl13236
Sertraline HclSertraline Hcl11227
AripiprazoleAripiprazole11132
ClonazepamClonazepam10922
Escitalopram OxalateEscitalopram Oxalate10431
MirtazapineMirtazapine10421
Bupropion XlBupropion Hcl9836
Zolpidem TartrateZolpidem Tartrate9519
Duloxetine HclDuloxetine Hcl8927
Venlafaxine Hcl ErVenlafaxine Hcl8619
RisperidoneRisperidone8330
Divalproex Sodium ErDivalproex Sodium8214
Fluoxetine HclFluoxetine Hcl7320
LorazepamLorazepam7026
Bupropion HclBupropion Hcl6916
Buspirone HclBuspirone Hcl6417
Divalproex SodiumDivalproex Sodium6215
Bupropion Hcl SrBupropion Hcl5213
Citalopram HbrCitalopram Hydrobromide5011
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine48suppressed
LamotrigineLamotrigine4317
Hydroxyzine HclHydroxyzine Hcl4118
Benztropine MesylateBenztropine Mesylate3412
TemazepamTemazepam29suppressed
DiazepamDiazepam27suppressed
Paroxetine HclParoxetine Hcl27suppressed
Invega SustennaPaliperidone Palmitate25suppressed
Doxepin HclDoxepin Hcl22suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine21suppressed
Lithium CarbonateLithium Carbonate20suppressed
TopiramateTopiramate19suppressed
RexultiBrexpiprazole18suppressed
Hydroxyzine PamoateHydroxyzine Pamoate16suppressed
Valproic AcidValproic Acid (As Sodium Salt)14suppressed
Lithium Carbonate ErLithium Carbonate13suppressed
Propranolol HclPropranolol Hcl13suppressed
Atomoxetine HclAtomoxetine Hcl12suppressed
Atorvastatin CalciumAtorvastatin Calcium12suppressed
Ziprasidone HclZiprasidone Hcl12suppressed
Aripiprazole OdtAripiprazole11suppressed

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 $1,263.75 · 62 records Otsuka America Pharmaceutical, Inc. ABILIFY ASIMTUFII, ARISTADA, AUSTEDO XR, CAPLYTA, COBENFY, FANAPT, INGREZZA, LYBALVI, REXULTI, SPRAVATO, TRINTELLIX, UZEDY, 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