Healthcare provider profile · identity verified

Joshua D Katz, MD

Allopathic & Osteopathic Physicians|General Practice · WELLESLEY, MA · NPI 1659367522

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 Joshua D Katz, MD received $51,052.00 in general payments during 2025 across 59 reported records.

TG Therapeutics, Inc. accounted for 37.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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

Payment overview · 2025

General Payments

$51,052.00

59 reported records · 8 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
TG Therapeutics, Inc. Unresolved — no canonical attribution shown $19,032.9737.3%262025
GENZYME CORPORATION Unresolved — no canonical attribution shown $16,410.3832.1%112025
Genentech USA, Inc. Unresolved — no canonical attribution shown $15,455.9730.3%172025
EMD Serono, Inc. Unresolved — no canonical attribution shown $40.290.1%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $35.450.1%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $27.570.1%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $27.260.1%12025
Amgen Inc. Unresolved — no canonical attribution shown $22.110.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$30,232.005
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$15,907.508
Travel and Lodging$2,535.4814
Food and Beverage$2,377.0232

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
BRIUMVI
Normalized: briumvi
Drug TG Therapeutics, Inc. $19,032.97 26 2025
Source payment records
Ocrevus
Normalized: ocrevus
Biological Genentech USA, Inc. $7,695.24 7 2025
Source payment records
PONVORY
Normalized: ponvory
Drug Vanda Pharmaceuticals Inc. $35.45 1 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $28.10 1 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $27.57 1 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $27.26 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $22.11 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Dalfampridine ErDalfampridine29429
GabapentinGabapentin20945
BaclofenBaclofen18644
ModafinilModafinil7913
Carbamazepine ErCarbamazepine58suppressed
Tizanidine HclTizanidine Hcl5812
Oxybutynin Chloride ErOxybutynin Chloride4513
ClonazepamClonazepam32suppressed
Kesimpta PenOfatumumab30suppressed
Citalopram HbrCitalopram Hydrobromide29suppressed
Duloxetine HclDuloxetine Hcl26suppressed
LevetiracetamLevetiracetam26suppressed
Fluoxetine HclFluoxetine Hcl24suppressed
FingolimodFingolimod Hcl22suppressed
LamotrigineLamotrigine22suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
EntecavirEntecavir17suppressed
Methylphenidate HclMethylphenidate Hcl16suppressed
CopaxoneGlatiramer Acetate15suppressed
TopiramateTopiramate15suppressed
Trospium ChlorideTrospium Chloride15suppressed
Bupropion XlBupropion Hcl14suppressed
DiazepamDiazepam14suppressed
Sertraline HclSertraline Hcl14suppressed
AlprazolamAlprazolam13suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
AmpyraDalfampridine13suppressed
Divalproex SodiumDivalproex Sodium13suppressed
Nortriptyline HclNortriptyline Hcl13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
Dimethyl FumarateDimethyl Fumarate12suppressed
PhenobarbitalPhenobarbital12suppressed
PregabalinPregabalin12suppressed
VumerityDiroximel Fumarate12suppressed
Emgality PenGalcanezumab-Gnlm11suppressed

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 $51,052.00 · 59 records TG Therapeutics, Inc. BRIUMVI, KESIMPTA, Ocrevus, Ocrevus Zunovo, PONVORY, ULTOMIRIS, UPLIZNA
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