Healthcare provider profile · identity verified

Douglas K Rex, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · INDIANAPOLIS, IN · NPI 1164486643

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 K Rex, M.D. received $59,073.75 in general payments during 2025 across 73 reported records.

Boston Scientific Corporation accounted for 51.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

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

Payment overview · 2025

General Payments

$59,073.75

73 reported records · 5 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
Boston Scientific Corporation Unresolved — no canonical attribution shown $30,125.8251.0%362025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$14,242.2324.1%192025
Odin Medical Limited Unresolved — no canonical attribution shown $10,854.0018.4%92025
Olympus America Inc. Unresolved — no canonical attribution shown $2,010.003.4%22025
INTUITIVE SURGICAL, INC. Unresolved — no canonical attribution shown $1,841.703.1%72025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$29,740.0018
Consulting Fee$24,022.5010
Travel and Lodging$4,076.2321
Food and Beverage$1,235.0224

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
Resolution 360 Clip
Normalized: resolution 360 clip
Device Boston Scientific Corporation $18,396.13 18 2025
Source payment records
GI GENIUS
Normalized: gi genius
Device Medtronic, Inc. $14,201.94 18 2025
Source payment records
General - Therapies
Normalized: general therapies
Device Boston Scientific Corporation $9,705.03 6 2025
Source payment records
EVIS EXERA III COLONOVIDEOSCOPE
Normalized: evis exera iii colonovideoscope
Device Olympus America Inc. $2,010.00 2 2025
Source payment records
Olympus
Normalized: olympus
Device Olympus America Inc. $2,010.00 2 2025
Source payment records
OverStitch Endoscopic Suturing System
Normalized: overstitch endoscopic suturing system
Device Boston Scientific Corporation $1,983.90 11 2025
Source payment records
Da Vinci Surgical System
Normalized: da vinci surgical system
Device INTUITIVE SURGICAL, INC. $1,841.70 7 2025
Source payment records
Acquire
Normalized: acquire
Device Boston Scientific Corporation $40.76 1 2025
Source payment records
SELECTSECURE
Normalized: selectsecure
Device Medtronic, Inc. $40.29 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

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
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl538513
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates224217
OmeprazoleOmeprazole22382
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl123117
FamotidineFamotidine11137
Pantoprazole SodiumPantoprazole Sodium10236
MesalamineMesalamine4212
Ondansetron HclOndansetron Hcl39suppressed
StelaraUstekinumab39suppressed
Peg 3350-ElectrolyteSodium Chloride/Nahco3/Kcl/Peg3736
Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl3434
LansoprazoleLansoprazole3211
Colestipol HclColestipol Hcl30suppressed
SutabSod Sulf/Pot Chloride/Mag Sulf3030
Balsalazide DisodiumBalsalazide Disodium29suppressed
SucralfateSucralfate2712
LinzessLinaclotide24suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine22suppressed
Ondansetron OdtOndansetron22suppressed
SulfasalazineSulfasalazine22suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
Budesonide EcBudesonide20suppressed
CreonLipase/Protease/Amylase20suppressed
Budesonide DrBudesonide17suppressed
Mesalamine ErMesalamine17suppressed
AzathioprineAzathioprine13suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13suppressed
Dicyclomine HclDicyclomine Hcl12suppressed
XeljanzTofacitinib Citrate12suppressed

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 $59,073.75 · 73 records Boston Scientific Corporation Acquire, Da Vinci Surgical System, EVIS EXERA III COLONOVIDEOSCOPE, GI GENIUS, General - Therapies, Olympus, OverStitch Endoscopic Suturing System, Resolution 360 Clip, SELECTSECURE
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