Healthcare provider profile · identity verified

Michael Feld, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Psychiatry · NORTHBROOK, IL · NPI 1427057322

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 Michael Feld, M.D. received $134,373.71 in general payments during 2025 across 227 reported records.

Supernus Pharmaceuticals, Inc. accounted for 48.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

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

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 20 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 20 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

$134,373.71

227 reported records · 9 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
Supernus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $64,550.8448.0%962025
Tris Pharma Inc Unresolved — no canonical attribution shown $53,745.6640.0%812025
AYTU BioPharma, Inc. Unresolved — no canonical attribution shown $9,686.677.2%82025
Neos Therapeutics, LP Unresolved — no canonical attribution shown $5,976.994.5%172025
Corium, LLC Unresolved — no canonical attribution shown $183.560.1%92025
Lundbeck LLC Unresolved — no canonical attribution shown $149.800.1%112025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $35.760.0%22025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $29.600.0%22025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $14.830.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Honoraria$99,775.0041
Travel and Lodging$16,332.0375
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$14,300.0012
Food and Beverage$3,716.6898
Consulting Fee$250.001

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
Qelbree
Normalized: qelbree
Drug Supernus Pharmaceuticals, Inc. $64,550.84 96 2025
Source payment records
Dyanavel XR
Normalized: dyanavel xr
Drug Tris Pharma Inc $53,745.66 81 2025
Source payment records
Quillichew ER
Normalized: quillichew er
Drug Tris Pharma Inc $53,502.60 57 2025
Source payment records
Quillivant
Normalized: quillivant
Drug Tris Pharma Inc $53,502.60 57 2025
Source payment records
Cotempla XR-ODT
Normalized: cotempla xr odt
Drug AYTU BioPharma, Inc., Neos Therapeutics, LP $11,408.33 16 2025
Source payment records
Adzenys XR-ODT
Normalized: adzenys xr odt
Drug AYTU BioPharma, Inc., Neos Therapeutics, LP $10,868.16 15 2025
Source payment records
Azstarys
Normalized: azstarys
Drug Corium, LLC $183.56 9 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $179.40 13 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $35.76 2 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $14.83 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
REXULTI
rexulti
2025 Rexulti 2024 20
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
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
20 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
20 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
Sertraline HclSertraline Hcl41930
RisperidoneRisperidone33120
Quetiapine FumarateQuetiapine Fumarate31215
ClonazepamClonazepam20020
Trazodone HclTrazodone Hcl19514
Benztropine MesylateBenztropine Mesylate15215
Guanfacine HclGuanfacine Hcl131suppressed
AripiprazoleAripiprazole12712
Escitalopram OxalateEscitalopram Oxalate12513
Duloxetine HclDuloxetine Hcl103suppressed
LorazepamLorazepam9212
Clomipramine HclClomipramine Hcl73suppressed
Bupropion XlBupropion Hcl70suppressed
ClozapineClozapine66suppressed
GabapentinGabapentin63suppressed
OlanzapineOlanzapine58suppressed
Citalopram HbrCitalopram Hydrobromide41suppressed
Fluoxetine HclFluoxetine Hcl37suppressed
Propranolol HclPropranolol Hcl36suppressed
TopiramateTopiramate36suppressed
Buspirone HclBuspirone Hcl33suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine33suppressed
LamotrigineLamotrigine30suppressed
Clonidine HclClonidine Hcl25suppressed
Lithium CarbonateLithium Carbonate25suppressed
DiazepamDiazepam24suppressed
Fluvoxamine MaleateFluvoxamine Maleate24suppressed
Paliperidone ErPaliperidone24suppressed
Paroxetine HclParoxetine Hcl24suppressed
Thioridazine HclThioridazine Hcl24suppressed
Divalproex SodiumDivalproex Sodium22suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine21suppressed
TrintellixVortioxetine Hydrobromide21suppressed
RexultiBrexpiprazole20suppressed
AlprazolamAlprazolam17suppressed
Dextroamphetamine SulfateDextroamphetamine Sulfate17suppressed
Divalproex Sodium ErDivalproex Sodium14suppressed
Guanfacine Hcl ErGuanfacine Hcl14suppressed
KlonopinClonazepam14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
Chlorpromazine HclChlorpromazine Hcl13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate13suppressed
VyvanseLisdexamfetamine Dimesylate13suppressed
Donepezil HclDonepezil Hcl12suppressed
ModafinilModafinil12suppressed
Naltrexone HclNaltrexone Hcl12suppressed
Quetiapine Fumarate ErQuetiapine Fumarate12suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl12suppressed
Ziprasidone HclZiprasidone Hcl12suppressed
Carbamazepine ErCarbamazepine11suppressed

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 $134,373.71 · 227 records Supernus Pharmaceuticals, Inc. Adzenys XR-ODT, Auvelity, Azstarys, COBENFY, Cotempla XR-ODT, Dyanavel XR, Qelbree, Quillichew ER, Quillivant, REXULTI 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