Healthcare provider profile · identity verified

Dean Nick Cassimatis, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · NEW WINDSOR, NY · NPI 1821097742

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 Dean Nick Cassimatis, M.D. received $1,938.82 in general payments during 2025 across 98 reported records.

ABBVIE INC. accounted for 28.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 26 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Creon, Linzess, Stelara.

ABBVIE 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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Creon by this doctor in 2024.

ABBVIE 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Linzess by this doctor in 2024.

Janssen Biotech, 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 STELARA as an associated drug or biological on 23706 records involving 7279 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Stelara by this doctor in 2024.

Salix Pharmaceuticals, a division of Bausch Health US, 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 TRULANCE as an associated drug or biological on 2652 records involving 1501 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Trulance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,938.82

98 reported records · 18 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
ABBVIE INC. Unresolved — no canonical attribution shown $544.4628.1%302025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $193.2410.0%102025
GENZYME CORPORATION Unresolved — no canonical attribution shown $185.449.6%102025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $178.029.2%92025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $174.979.0%82025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $115.205.9%62025
QOL Medical, LLC Unresolved — no canonical attribution shown $107.545.5%42025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $91.094.7%42025
PFIZER INC. Unresolved — no canonical attribution shown $77.554.0%52025
Exact Sciences Corporation Unresolved — no canonical attribution shown $66.423.4%22025
Intercept Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $43.462.2%22025
Ardelyx, Inc. Unresolved — no canonical attribution shown $37.481.9%22025
Ferring Pharmaceuticals Inc. Unresolved — no canonical attribution shown $25.331.3%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $22.571.2%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.751.1%12025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $20.491.1%12025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $18.521.0%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $16.290.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,938.8298

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
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $408.52 21 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $354.42 19 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $300.64 16 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $178.02 9 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $158.27 7 2025
Source payment records
EOHILIA
Normalized: eohilia
Drug Takeda Pharmaceuticals U.S.A., Inc. $132.81 5 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $109.28 8 2025
Source payment records
Sucraid
Normalized: sucraid
Drug QOL Medical, LLC $107.54 4 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $78.93 6 2025
Source payment records
VELSIPITY
Normalized: velsipity
Drug PFIZER INC. $77.55 5 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $66.42 2 2025
Source payment records
XELJANZ
Normalized: xeljanz
Drug PFIZER INC. $62.22 4 2025
Source payment records
ENTYVIO
Normalized: entyvio
Biological Takeda Pharmaceuticals U.S.A., Inc. $60.43 5 2025
Source payment records
OCALIVA
Normalized: ocaliva
Drug Intercept Pharmaceuticals, Inc. $43.46 2 2025
Source payment records
SIMPONI
Normalized: simponi
Biological Janssen Biotech, Inc. $41.64 2 2025
Source payment records
SIMPONI ARIA
Normalized: simponi aria
Biological Janssen Biotech, Inc. $41.64 2 2025
Source payment records
STELARA
Normalized: stelara
Biological Janssen Biotech, Inc. $41.64 2 2025
Source payment records
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $37.48 2 2025
Source payment records
MAVYRET
Normalized: mavyret
Drug ABBVIE INC. $26.66 1 2025
Source payment records
REBYOTA
Normalized: rebyota
Biological Ferring Pharmaceuticals Inc. $25.33 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $22.57 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $20.75 1 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $20.49 1 2025
Source payment records
  • 2025-03-13 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $20.49 · Open Payments source
IQIRVO
Normalized: iqirvo
Drug Ipsen Biopharmaceuticals, Inc $18.52 1 2025
Source payment records
VOWST
Normalized: vowst
Biological Aimmune Therapeutics, Inc. $16.70 1 2025
Source payment records
OMVOH
Normalized: omvoh
Drug Lilly USA, LLC $16.29 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
CREON
creon
2025 Creon 2024 17
Beneficiary count suppressed
exact normalized Medicare Part D
LINZESS
linzess
2025 Linzess 2024 25
Beneficiary count suppressed
exact normalized Medicare Part D
STELARA
stelara
2025 Stelara 2024 16
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
25 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 STELARA
open payments reported associated product
CMS Open Payments — General Payments
23706 supporting records · 7279 recipient NPIs · example record 1174257377
Stelara · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Exact reporting entity; no affiliate inference
2025 TRULANCE
open payments reported associated product
CMS Open Payments — General Payments
2652 supporting records · 1501 recipient NPIs · example record 1231775445
Trulance · 2024
Exact normalized brand match · 1 Part D row
11 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
OmeprazoleOmeprazole1049328
Pantoprazole SodiumPantoprazole Sodium411123
FamotidineFamotidine319110
SutabSod Sulf/Pot Chloride/Mag Sulf121119
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates3131
SucralfateSucralfate31suppressed
MesalamineMesalamine3012
Ciprofloxacin HclCiprofloxacin Hcl2927
MetronidazoleMetronidazole2725
Esomeprazole MagnesiumEsomeprazole Magnesium25suppressed
LinzessLinaclotide25suppressed
Mesalamine ErMesalamine20suppressed
Rabeprazole SodiumRabeprazole Sodium19suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine18suppressed
CreonLipase/Protease/Amylase17suppressed
StelaraUstekinumab16suppressed
NexiumEsomeprazole Magnesium15suppressed
Dupixent PenDupilumab14suppressed
LansoprazoleLansoprazole13suppressed
Ondansetron OdtOndansetron13suppressed
TrulancePlecanatide11suppressed

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 $1,938.82 · 98 records ABBVIE INC. CREON, Cologuard Collection Kit, DUPIXENT, ENTYVIO, EOHILIA, IBSRELA, IQIRVO, LINZESS, MAVYRET, OCALIVA, OMVOH, REBYOTA, RINVOQ, SIMPONI, SIMPONI ARIA, SKYRIZI, STELARA, Sucraid, TREMFYA, VELSIPITY, VOQUEZNA, VOWST, Wegovy, XELJANZ, XIFAXAN, ZENPEP 4
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