DR. LIAM JOSEPH O'HALLORAN M.D.
NPI 1093511404
Student in an Organized Health Care Education/Training Program in Boston, MA

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

The NPI number for Liam O'halloran is 1093511404. It was assigned to this individual provider in the NPPES registry on February 25, 2025.

Q: What is Liam O'halloran's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Q: When was this NPI record last updated?

The NPPES record for Liam O'halloran was last updated on August 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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 February 25, 2025

DEPARTMENT OF RADIOLOGY, 300 LONGWOOD AVE, BOSTON CHILDREN'S HOSPITAL, BOSTON, MA 02115(617) 355-6290 Get Directions Write a Review

NPPES record last updated: August 27, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Liam Joseph O'halloran M.d. NPPES

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

DR. LIAM JOSEPH O'HALLORAN M.D. (NPI 1093511404) is an individual student in an organized health care education/training program in Boston, Massachusetts and active in the NPI registry since February 2025.

NPPES Registry Identity

NPI1093511404

Entity TypeIndividualMale

Primary Taxonomy390200000X

Provider Legal NameDR. LIAM JOSEPH O'HALLORANCredential: M.D.

Location AddressDEPARTMENT OF RADIOLOGY, 300 LONGWOOD AVE, BOSTON CHILDREN'S HOSPITALBoston, MA 02115

Mailing Address8. St Alphonsus Avenue, South Circular Road, Limerick CityLimerick, MUNSTER V94YNW5

Phone(617) 355-6290

Sole ProprietorNo

Enumeration DateFebruary 25, 2025

Last NPPES UpdateAugust 27, 2025

✔ NPI 1093511404 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care

Taxonomy Code390200000X

Definition

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

DEPARTMENT OF RADIOLOGY, Boston, MA 02115

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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 Liam O'halloran's NPI number?

The NPI number for Liam O'halloran is 1093511404. It was assigned to this individual provider in the NPPES registry on February 25, 2025.

Where is Liam O'halloran located?

Liam O'halloran practices at Department Of Radiology 300 Longwood Ave, Boston Children's Hospital, Boston, MA 02115. The listed phone number is (617) 355-6290.

What is Liam O'halloran's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for Liam O'halloran was last updated on August 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.