Healthcare provider profile · identity verified

Shyam A Vyas, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · NACOGDOCHES, TX · NPI 1992850184

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 Shyam A Vyas, MD received $689.51 in general payments during 2025 across 34 reported records.

Collegium Pharmaceutical, Inc. accounted for 32.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

Corium, 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 Azstarys as an associated drug or biological on 54930 records involving 15827 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Azstarys 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 14 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

$689.51

34 reported records · 10 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
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $222.2032.2%102025
Corium, LLC Unresolved — no canonical attribution shown $165.8524.1%82025
ABBVIE INC. Unresolved — no canonical attribution shown $68.259.9%42025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $54.898.0%32025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $54.237.9%32025
Tris Pharma Inc Unresolved — no canonical attribution shown $36.785.3%22025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $24.533.6%12025
Lundbeck LLC Unresolved — no canonical attribution shown $22.933.3%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $20.192.9%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $19.662.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$689.5134

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
Jornay PM
Normalized: jornay pm
Drug Collegium Pharmaceutical, Inc. $222.20 10 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $165.85 8 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $68.25 4 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $54.89 3 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $54.23 3 2025
Source payment records
Dyanavel XR
Normalized: dyanavel xr
Drug Tris Pharma Inc $36.78 2 2025
Source payment records
SPRAVATO
Normalized: spravato
Drug Janssen Pharmaceuticals, Inc $24.53 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC $22.93 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $20.19 1 2025
Source payment records
HETLIOZ
Normalized: hetlioz
Drug Vanda Pharmaceuticals Inc. $20.19 1 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $19.66 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
Azstarys
azstarys
2025 Azstarys 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 14
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
Corium, LLC
Exact reporting entity; no affiliate inference
2025 Azstarys
open payments reported associated product
CMS Open Payments — General Payments
54930 supporting records · 15827 recipient NPIs · example record 1185762907
Azstarys · 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
14 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
Venlafaxine Hcl ErVenlafaxine Hcl21534
Trazodone HclTrazodone Hcl20035
Quetiapine FumarateQuetiapine Fumarate15721
ClonazepamClonazepam13517
Zolpidem TartrateZolpidem Tartrate13117
Escitalopram OxalateEscitalopram Oxalate10516
Sertraline HclSertraline Hcl9820
Fluoxetine HclFluoxetine Hcl9514
MirtazapineMirtazapine9414
Bupropion XlBupropion Hcl9117
Bupropion Hcl SrBupropion Hcl9018
AlprazolamAlprazolam8612
Buspirone HclBuspirone Hcl8313
Duloxetine HclDuloxetine Hcl8313
Citalopram HbrCitalopram Hydrobromide7416
LamotrigineLamotrigine55suppressed
Paroxetine HclParoxetine Hcl53suppressed
RisperidoneRisperidone51suppressed
Hydroxyzine HclHydroxyzine Hcl4912
Lurasidone HclLurasidone Hcl45suppressed
AripiprazoleAripiprazole41suppressed
LorazepamLorazepam41suppressed
GabapentinGabapentin33suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate30suppressed
OlanzapineOlanzapine30suppressed
Quetiapine Fumarate ErQuetiapine Fumarate28suppressed
Ziprasidone HclZiprasidone Hcl26suppressed
Guanfacine Hcl ErGuanfacine Hcl23suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine22suppressed
EszopicloneEszopiclone22suppressed
Propranolol HclPropranolol Hcl20suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl19suppressed
Divalproex Sodium ErDivalproex Sodium16suppressed
Doxepin HclDoxepin Hcl15suppressed
Methylphenidate ErMethylphenidate Hcl15suppressed
ZaleplonZaleplon15suppressed
Methylphenidate HclMethylphenidate Hcl14suppressed
RexultiBrexpiprazole14suppressed
VyvanseLisdexamfetamine Dimesylate14suppressed
AzstarysSerdexmethylphen/Dexmethylphen12suppressed
CarbamazepineCarbamazepine12suppressed
Hydroxyzine PamoateHydroxyzine Pamoate12suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
ModafinilModafinil11suppressed
Vilazodone HclVilazodone 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 $689.51 · 34 records Collegium Pharmaceutical, Inc. Auvelity, Azstarys, CAPLYTA, COBENFY, Dyanavel XR, FANAPT, HETLIOZ, Jornay PM, REXULTI, SPRAVATO, 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