Healthcare provider profile · identity verified

Riaz Rahman, M.D.

Psychiatry · STAFFORD, TX · NPI 1275630717

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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
AlprazolamAlprazolam22650
ClonazepamClonazepam13430
Trazodone HclTrazodone Hcl12742
Buspirone HclBuspirone Hcl10930
Quetiapine FumarateQuetiapine Fumarate10924
OlanzapineOlanzapine10020
Duloxetine HclDuloxetine Hcl8421
LamotrigineLamotrigine7919
Bupropion XlBupropion Hcl7616
Fluoxetine HclFluoxetine Hcl7218
Bupropion Hcl SrBupropion Hcl7114
LorazepamLorazepam6614
Escitalopram OxalateEscitalopram Oxalate6321
Venlafaxine Hcl ErVenlafaxine Hcl53suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine45suppressed
AripiprazoleAripiprazole4412
Zolpidem TartrateZolpidem Tartrate40suppressed
Sertraline HclSertraline Hcl3711
Atomoxetine HclAtomoxetine Hcl3513
Lurasidone HclLurasidone Hcl35suppressed
Divalproex Sodium ErDivalproex Sodium33suppressed
Paroxetine HclParoxetine Hcl32suppressed
Doxepin HclDoxepin Hcl31suppressed
TopiramateTopiramate30suppressed
Naltrexone HclNaltrexone Hcl2912
OxcarbazepineOxcarbazepine29suppressed
RisperidoneRisperidone28suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine27suppressed
GabapentinGabapentin27suppressed
MirtazapineMirtazapine2613
DiazepamDiazepam25suppressed
Divalproex SodiumDivalproex Sodium23suppressed
Prazosin HclPrazosin Hcl23suppressed
Citalopram HbrCitalopram Hydrobromide22suppressed
Hydroxyzine HclHydroxyzine Hcl22suppressed
Benztropine MesylateBenztropine Mesylate20suppressed
Methylphenidate HclMethylphenidate Hcl19suppressed
Quetiapine Fumarate ErQuetiapine Fumarate16suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate15suppressed
Donepezil HclDonepezil Hcl15suppressed
EszopicloneEszopiclone15suppressed
Methylphenidate ErMethylphenidate Hcl13suppressed
Fluvoxamine MaleateFluvoxamine Maleate12suppressed
Carbamazepine ErCarbamazepine11suppressed
Ropinirole HclRopinirole 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
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