Healthcare provider profile · identity verified

Mazhar Khowaja

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · HOUSTON, TX · NPI 1770523276

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 Mazhar Khowaja received $159,570.87 in general payments during 2025 across 186 reported records.

Neurocrine BioSciences, Inc. accounted for 81.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 5 associated products.

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

ACADIA 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 NUPLAZID as an associated drug or biological on 20845 records involving 6448 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Nuplazid by this doctor in 2024.

Neurocrine BioSciences, 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 INGREZZA as an associated drug or biological on 126456 records involving 27390 distinct recipient NPIs. Public Medicare Part D data also shows 56 claims for Ingrezza 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 60 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

$159,570.87

186 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
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $129,722.2881.3%1382025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $29,468.9818.5%372025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $236.130.1%92025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $121.890.1%12025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $21.590.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$114,781.0029
Consulting Fee$23,750.004
Travel and Lodging$16,736.2391
Food and Beverage$4,303.6462

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
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $129,722.28 138 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $29,468.98 37 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $236.13 9 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $121.89 1 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $21.59 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
INGREZZA
ingrezza
2025 Ingrezza 2024 56
Beneficiary count suppressed
exact normalized Medicare Part D
NUPLAZID
nuplazid
2025 Nuplazid 2024 35
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 60
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
ACADIA Pharmaceuticals Inc
Exact reporting entity; no affiliate inference
2025 NUPLAZID
open payments reported associated product
CMS Open Payments — General Payments
20845 supporting records · 6448 recipient NPIs · example record 1247763852
Nuplazid · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Neurocrine BioSciences, Inc.
Exact reporting entity; no affiliate inference
2025 INGREZZA
open payments reported associated product
CMS Open Payments — General Payments
126456 supporting records · 27390 recipient NPIs · example record 1242766729
Ingrezza · 2024
Exact normalized brand match · 1 Part D row
56 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
60 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
Donepezil HclDonepezil Hcl21051
Duloxetine HclDuloxetine Hcl16835
Escitalopram OxalateEscitalopram Oxalate16245
Memantine HclMemantine Hcl13530
Memantine Hcl ErMemantine Hcl13428
Sertraline HclSertraline Hcl12325
Buspirone HclBuspirone Hcl10533
MirtazapineMirtazapine6128
RexultiBrexpiprazole60suppressed
IngrezzaValbenazine Tosylate56suppressed
LorazepamLorazepam5614
Quetiapine FumarateQuetiapine Fumarate5316
Trazodone HclTrazodone Hcl5027
Divalproex SodiumDivalproex Sodium4815
RivastigmineRivastigmine47suppressed
AripiprazoleAripiprazole36suppressed
NuplazidPimavanserin Tartrate35suppressed
Venlafaxine Hcl ErVenlafaxine Hcl29suppressed
RisperidoneRisperidone2712
Prazosin HclPrazosin Hcl18suppressed
TopiramateTopiramate18suppressed
CaplytaLumateperone Tosylate17suppressed
Citalopram HbrCitalopram Hydrobromide17suppressed
Divalproex Sodium ErDivalproex Sodium17suppressed
Quetiapine Fumarate ErQuetiapine Fumarate15suppressed
VraylarCariprazine Hcl15suppressed
TrintellixVortioxetine Hydrobromide13suppressed
Amitriptyline HclAmitriptyline Hcl12suppressed
Doxepin HclDoxepin Hcl11suppressed
Fluoxetine HclFluoxetine 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 $159,570.87 · 186 records Neurocrine BioSciences, Inc. AUSTEDO XR, COBENFY, INGREZZA, NUPLAZID, REXULTI 3
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

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