CONOR O'HALLORAN
NPI 1265894141
Pediatrics - Pediatric Cardiology in Chicago, IL

Q: What is Conor O'halloran's NPI number?

The NPI number for Conor O'halloran is 1265894141. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Q: What is Conor O'halloran'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 Conor O'halloran was last updated on July 22, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since March 22, 2016PECOS Enrolled

225 E CHICAGO AVE, CHICAGO, IL 60611(800) 543-7362 Get Directions Write a Review

NPPES record last updated: July 22, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Conor O'halloran NPPES

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

CONOR O'HALLORAN (NPI 1265894141) is an individual pediatric cardiology provider in Chicago, Illinois, licensed in Illinois (036148582) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of University Of Wisconsin School Of Medicine (2016).

NPPES Registry Identity

NPI1265894141

Entity TypeIndividualMale

Primary Taxonomy2080P0202X

Provider Legal NameCONOR O'HALLORAN

Location Address225 E CHICAGO AVEChicago, IL 60611-2991

Mailing Address225 E Chicago AveChicago, IL 60611-2991 · (800) 543-7362

Phone(800) 543-7362

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2016

Enumeration DateMarch 22, 2016

Last NPPES UpdateJuly 22, 2025

NPPES CertifiedJuly 22, 2025

✔ NPI 1265894141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0202X

License✔ Licensed in IL · 036148582

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.

225 E CHICAGO AVE, Chicago, IL 60611

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Secondary Practice Locations 3

Location 1251 E Huron StChicago, IL 60611-2908 · Phone (312) 227-4100

Location 22515 N Clark StChicago, IL 60614-2730 · Phone (312) 227-4100

Location 31620 W Harrison StChicago, IL 60612-3801 · Phone (312) 227-4000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Conor O'halloran is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID547739773

PECOS Enrollment IDI20260518002248

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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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.

BESSEY ELIZABETH JOSE GEEVARGHESE DO

Pediatrics