Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael O'Halleran, MD

Individual provider Pediatrics Physician · NPI 1043672835

Michael O'Halleran, MD is a Pediatric Medicine in Brooklyn, New York. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2016, 10 years ago. Practices as a sole proprietor. Licensed in New York.

Years since qualifying
10
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
NY
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

121 Dekalb Ave
Brooklyn, NY 11201-5425
Phone: (718) 250-6917
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 323856 (NY)

Record details

NPI number1043672835
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 22, 2016
Last updated in NPPESApril 30, 2025
Certification dateApril 30, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Accepts Medicare assignment Not indicated

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