Healthcare provider profile · identity verified

Jack A. Collazzo, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · BRYN MAWR, PA · NPI 1891725891

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 Jack A. Collazzo, M.D. received $563.72 in general payments during 2025 across 32 reported records.

ABBVIE INC. accounted for 81.3% of that reported general-payment amount.

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

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

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 13 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 38 claims for Linzess by this doctor in 2024.

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

Payment overview · 2025

General Payments

$563.72

32 reported records · 3 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 $458.1281.3%302025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $84.9915.1%12025
Intra-Sana Laboratories Unresolved — no canonical attribution shown $20.613.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$478.7331
Education$84.991

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
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $322.09 18 2025
Source payment records
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $322.09 18 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $114.95 11 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $84.99 1 2025
Source payment records
VIBERZI
Normalized: viberzi
Drug ABBVIE INC. $83.29 9 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $73.82 4 2025
Source payment records
GLYCATE
Normalized: glycate
Drug Intra-Sana Laboratories $20.61 1 2025
Source payment records
RELTONE 200 MG
Normalized: reltone 200 mg
Drug Intra-Sana Laboratories $20.61 1 2025
Source payment records
RELTONE 400 MG
Normalized: reltone 400 mg
Drug Intra-Sana Laboratories $20.61 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 13
Beneficiary count suppressed
exact normalized Medicare Part D
LINZESS
linzess
2025 Linzess 2024 38 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
13 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
38 12

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
Pantoprazole SodiumPantoprazole Sodium473128
OmeprazoleOmeprazole21161
Dicyclomine HclDicyclomine Hcl13846
FamotidineFamotidine11733
Esomeprazole MagnesiumEsomeprazole Magnesium10431
MesalamineMesalamine5911
Colesevelam HclColesevelam Hcl5820
GlycopyrrolateGlycopyrrolate5111
Ondansetron HclOndansetron Hcl4817
Rabeprazole SodiumRabeprazole Sodium4511
LinzessLinaclotide3812
Dexlansoprazole DrDexlansoprazole33suppressed
PrednisonePrednisone32suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2716
Ondansetron OdtOndansetron26suppressed
Ciprofloxacin HclCiprofloxacin Hcl25suppressed
MotegrityPrucalopride Succinate23suppressed
LoperamideLoperamide Hcl22suppressed
MotofenDifenoxin Hcl/Atropine Sulfate22suppressed
Budesonide EcBudesonide19suppressed
Tramadol HclTramadol Hcl19suppressed
LubiprostoneLubiprostone17suppressed
Metoclopramide HclMetoclopramide Hcl17suppressed
UrsodiolUrsodiol17suppressed
DiazepamDiazepam16suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine16suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
Cholestyramine LightCholestyramine14suppressed
AzathioprineAzathioprine13suppressed
CreonLipase/Protease/Amylase13suppressed
DexilantDexlansoprazole13suppressed
FurosemideFurosemide13suppressed
EliquisApixaban12suppressed
Propranolol Hcl ErPropranolol Hcl11suppressed
XeljanzTofacitinib Citrate11suppressed

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 $563.72 · 32 records ABBVIE INC. CREON, GLYCATE, LINZESS, RELTONE 200 MG, RELTONE 400 MG, RINVOQ, SKYRIZI, TREMFYA, VIBERZI 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