NPPES file of Aug 9, 2026

Conor Patrick O'Halloran

Pediatric Cardiology Physician · Chicago, IL

Conor Patrick O'Halloran is a pediatric cardiology physician with a practice address in Chicago, Illinois, and NPI 1265894141, issued on Mar 22, 2016. Check the license (Illinois 036148582, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265894141
Name
Conor Patrick O'Halloran
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License number
036148582 IL
Self-reported in NPPES; status is on the state search
Practice location
225 E Chicago Ave, Chicago, IL 60611
Phone
(800) 543-7362
Enumerated
Mar 22, 2016
Record last updated
Aug 5, 2026
Medicare enrollment
Enrolled (PECOS I20260518002248); may accept Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest pediatric cardiology physician records → All 162 in Illinois → Look up another NPI →

Also registered at 225 E Chicago Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jasmene Abernathy, MDStudent in an Organized Health Care Education/Training Program1881454957
  2. Tamkeen Abreu, PHARMD, BCPSPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1366888653
  3. Matthew Abts, MDPediatric Pulmonology Physician1588989750
  4. Samuel AccordinoStudent in an Organized Health Care Education/Training Program1194525204
  5. Carly Adajian, DDSDentist1184373029
  6. Julie Adams, RDRegistered Dietitian1417569153

Verify Conor Patrick O'Halloran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036148582    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Conor Patrick O'Halloran among 162 pediatric cardiology physician records in Illinois

Conor Patrick O'Halloran is one of 162 pediatric cardiology physician records with a practice address in Illinois. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 85% of them.

  • NPI issued2016 · 85% of these records are older, 13% newer
  • In a Medicare fileNo · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2016 · median 2005 among the 84 with a school on file
  • Record last updated2026 · 27% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Cardiology Physician providers in Illinois

There are 162 pediatric cardiology physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 162 in Illinois → Every provider in Chicago → Pediatric Cardiology Physician nationwide →

The 8 pediatric cardiology physician records with the nearest ZIP codes

  1. Stuart Berger, MDChicago, IL 606111811948268
  2. Michael Carr, M.D.Chicago, IL 606111285770925
  3. Amanda Hauck, M.D.Chicago, IL 606111124248067
  4. Pei-Ni Jone, MDChicago, IL 606111962629600
  5. Paul Kim, M.D.Chicago, IL 606111265471312
  6. Peter Koenig, M.D.Chicago, IL 606111922114297
  7. Sulekha Kumar, MDChicago, IL 606111184686990
  8. Amy Lay, M.D.Chicago, IL 606111407075435

Common questions

What is Conor Patrick O'Halloran's NPI number?

Conor Patrick O'Halloran's National Provider Identifier (NPI) is 1265894141, issued on Mar 22, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Conor Patrick O'Halloran located?

The NPPES record lists a practice address at 225 E Chicago Ave, Chicago, IL, 60611. Phone: (800) 543-7362. Providers update this record themselves, so call before visiting.

How can I verify Conor Patrick O'Halloran's license?

NPPES lists Illinois license number 036148582, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.