Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KATIE ONEILL
NPI 1952220782
Nurse Practitioner - Family in Fairfield, CT

Active since July 14, 2026
5151 PARK AVE, FAIRFIELD, CT 06825(203) 371-7999 Get Directions Write a Review

NPPES record added: July 14, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Katie Oneill NPPES

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

KATIE ONEILL (NPI 1952220782) is an individual family provider in Fairfield, Connecticut, licensed in New York (F358430-01) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1952220782
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATIE ONEILL
Location Address5151 PARK AVEFairfield, CT 06825-1090
Mailing Address60 Woodbury St Apt 2New Rochelle, NY 10805-1588
Sole ProprietorNo
Enumeration DateJuly 14, 2026
NPPES CertifiedJuly 14, 2026
NPI 1952220782 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in NY · F358430-01
5151 PARK AVE, Fairfield, CT 06825

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.

Physician Assistant
5151 PARK AVE, MASTERS OF PHYSICIAN ASSISTANT STUDIES PROGRAM
FAIRFIELD, CT 06825
Specialist/Technologist (Athletic Trainer)
5151 PARK AVE
FAIRFIELD, CT 06825
Specialist/Technologist (Athletic Trainer)
5151 PARK AVE
FAIRFIELD, CT 06825
Physician Assistant
5151 PARK AVE
FAIRFIELD, CT 06825
Occupational Therapist
5151 PARK AVE, PITT CENTER
FAIRFIELD, CT 06825
Student in an Organized Health Care Education/Training Program
5151 PARK AVE
FAIRFIELD, CT 06825
Specialist/Technologist (Athletic Trainer)
5151 PARK AVE
FAIRFIELD, CT 06825
Physical Therapy Assistant
5151 PARK AVE
FAIRFIELD, CT 06825

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 Katie Oneill's NPI number?

The NPI number for Katie Oneill is 1952220782. It was assigned to this individual provider in the NPPES registry on July 14, 2026.

Where is Katie Oneill located?

Katie Oneill practices at 5151 Park Ave, Fairfield, CT 06825. The listed phone number is (203) 371-7999.

What is Katie Oneill's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Katie Oneill was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.