Healthcare provider profile · identity verified

Douglas Herbert Weinstein, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · NEPTUNE, NJ · NPI 1639389315

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 Douglas Herbert Weinstein, MD received $371.97 in general payments during 2025 across 19 reported records.

DENTSPLY IH AB accounted for 23.6% 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: Creon, Ibsrela, Linzess, Voquezna.

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 23 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 67 claims for Linzess by this doctor in 2024.

Ardelyx, 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 IBSRELA as an associated drug or biological on 59980 records involving 18215 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Ibsrela by this doctor in 2024.

Phathom Pharmaceuticals, 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 VOQUEZNA as an associated drug or biological on 90302 records involving 33442 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Voquezna by this doctor in 2024.

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

Payment overview · 2025

General Payments

$371.97

19 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
DENTSPLY IH AB Unresolved — no canonical attribution shown $87.9023.6%22025
ABBVIE INC. Unresolved — no canonical attribution shown $84.9122.8%52025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $84.5622.7%52025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $22.556.1%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $22.516.0%22025
Ardelyx, Inc. Unresolved — no canonical attribution shown $19.735.3%12025
Alcresta Therapeutics, Inc. Unresolved — no canonical attribution shown $19.105.1%12025
EVOKE PHARMA, INC. Unresolved — no canonical attribution shown $15.994.3%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $14.724.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$371.9719

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
NAVINA RECTAL CATHETER SET REGULAR
Normalized: navina rectal catheter set regular
Device DENTSPLY IH AB $87.90 2 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $84.91 5 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $67.55 4 2025
Source payment records
  • 2025-03-28 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.96 · Open Payments source
  • 2025-05-27 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $14.41 · Open Payments source
  • 2025-06-17 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.76 · Open Payments source
  • 2025-11-18 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.42 · Open Payments source
LINZESS
Normalized: linzess
Drug ABBVIE INC. $54.53 3 2025
Source payment records
VOWST
Normalized: vowst
Biological Aimmune Therapeutics, Inc. $22.55 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $22.51 2 2025
Source payment records
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $19.73 1 2025
Source payment records
RELIZORB
Normalized: relizorb
Device Alcresta Therapeutics, Inc. $19.10 1 2025
Source payment records
RELISTOR
Normalized: relistor
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.01 1 2025
Source payment records
  • 2025-12-23 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.01 · Open Payments source
GIMOTI
Normalized: gimoti
Drug EVOKE PHARMA, INC. $15.99 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 23
Beneficiary count suppressed
exact normalized Medicare Part D
IBSRELA
ibsrela
2025 Ibsrela 2024 27
Beneficiary count suppressed
exact normalized Medicare Part D
LINZESS
linzess
2025 Linzess 2024 67 exact normalized Medicare Part D
VOQUEZNA
voquezna
2025 Voquezna 2024 36
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
23 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
67 17
Ardelyx, Inc.
Exact reporting entity; no affiliate inference
2025 IBSRELA
open payments reported associated product
CMS Open Payments — General Payments
59980 supporting records · 18215 recipient NPIs · example record 1247828901
Ibsrela · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS
Phathom Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 VOQUEZNA
open payments reported associated product
CMS Open Payments — General Payments
90302 supporting records · 33442 recipient NPIs · example record 1219216983
Voquezna · 2024
Exact normalized brand match · 1 Part D row
36 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
OmeprazoleOmeprazole11339
Dexlansoprazole DrDexlansoprazole9935
MotegrityPrucalopride Succinate9724
Pantoprazole SodiumPantoprazole Sodium7724
Esomeprazole MagnesiumEsomeprazole Magnesium7324
LinzessLinaclotide6717
Ondansetron OdtOndansetron6413
ScopolamineScopolamine5420
LubiprostoneLubiprostone48suppressed
GabapentinGabapentin36suppressed
VoqueznaVonoprazan Fumarate36suppressed
MirtazapineMirtazapine3513
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates3131
FamotidineFamotidine29suppressed
IbsrelaTenapanor Hcl27suppressed
Pyridostigmine BromidePyridostigmine Bromide2712
AprepitantAprepitant25suppressed
CreonLipase/Protease/Amylase23suppressed
LactuloseLactulose2213
Ondansetron HclOndansetron Hcl22suppressed
Granisetron HclGranisetron Hcl18suppressed
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl17suppressed
Promethazine HclPromethazine Hcl14suppressed
BaclofenBaclofen13suppressed
VemlidyTenofovir Alafenamide12suppressed
SancusoGranisetron11suppressed

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 $371.97 · 19 records DENTSPLY IH AB CREON, GIMOTI, IBSRELA, LINZESS, NAVINA RECTAL CATHETER SET REGULAR, RELISTOR, RELIZORB, VOQUEZNA, VOWST, XIFAXAN 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