Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CATHERINE ELISE DUFFY MD
NPI 1215905922
Pediatrics - Pediatric Cardiology in Chicago, IL

Q: What is Catherine Duffy's NPI number?

The NPI number for Catherine Duffy is 1215905922. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Q: What is Catherine Duffy's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Q: When was this NPI record last updated?

The NPPES record for Catherine Duffy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 09, 2006

2300 CHILDRENS PLAZA, BOX 21 CHILDRENS MEMORIAL HOSPITAL, CHICAGO, IL 60614(773) 880-4553(773) 880-8111 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Catherine Elise Duffy Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CATHERINE ELISE DUFFY MD (NPI 1215905922) is an individual pediatric cardiology provider in Chicago, Illinois and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1215905922

Entity TypeIndividualFemale

Primary Taxonomy2080P0202X

Provider Legal NameDR. CATHERINE ELISE DUFFYCredential: MD

Location Address2300 CHILDRENS PLAZA, BOX 21 CHILDRENS MEMORIAL HOSPITALChicago, IL 60614-3363

Mailing Address2300 Childrens Plaza, Box 21 Childrens Memorial HospitalChicago, IL 60614-3363 · (773) 880-4553 · Fax (773) 880-8111

Phone(773) 880-4553

Fax(773) 880-8111

Sole ProprietorNo

Enumeration DateMarch 9, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1215905922 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0202X

Definition

A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.

2300 CHILDRENS PLAZA, Chicago, IL 60614

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAN ELLEN BERGER MD

Pediatrics

2300 CHILDRENS PLAZA
CHICAGO, IL 60614

Cook County (773) 880-4000

SARAH LYNN CHAMLIN MD

Dermatology

2300 CHILDRENS PLAZA, # 107
CHICAGO, IL 60614

Cook County (312) 227-6060

DR. ROBERT HOWARD LISTERNICK MD

Pediatrics

2300 CHILDRENS PLAZA, DIVISION OF GENERAL ACADEMIC PEDIATRICS CHILDRENS MEMOR
CHICAGO, IL 60614

Cook County (773) 880-3832

MARY KATHRYN STOELINGA APN

Pediatrics

2300 CHILDRENS PLAZA, CHILDRENS MEMORIAL HOSPITAL
CHICAGO, IL 60614

Cook County (773) 975-8636

MARY LYNN KREITER MD

Pediatrics (Pediatric Endocrinology)

2300 CHILDRENS PLAZA, BOX 54
CHICAGO, IL 60614

Cook County (773) 880-4440

SOOKYONG KOH MD PHD

Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)

2300 CHILDRENS PLAZA, CHILDRENS MEMORIAL HOSPITAL
CHICAGO, IL 60614

Cook County (773) 880-3179

SABRINA SIU LING TSAO MBBS

Pediatrics (Pediatric Cardiology)

2300 CHILDRENS PLAZA, CHILDRENS MEMORIAL HOSPITAL
CHICAGO, IL 60614

Cook County (773) 880-4553

MICHAEL DAVID KELLEHER MD

Pediatrics (Pediatric Critical Care Medicine)

2300 CHILDRENS PLAZA, BOX #73
CHICAGO, IL 60614

Cook County (773) 880-3980

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Catherine Duffy's NPI number?

The NPI number for Catherine Duffy is 1215905922. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Where is Catherine Duffy located?

Catherine Duffy practices at 2300 Childrens Plaza Box 21 Childrens Memorial Hospital, Chicago, IL 60614. The listed phone number is (773) 880-4553.

What is Catherine Duffy's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

When was this NPI record last updated?

The NPPES record for Catherine Duffy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.