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

Mrs. Christine Erin O'Connor, NP

Individual provider Critical Care Medicine Registered Nurse · NPI 1164765921

Mrs. Christine Erin O'Connor, NP is a Nurse Practitioner in Norwalk, Connecticut. Qualified in 2015, 11 years ago. Practices with MSK Nassau, a 98-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
11
Licensed in
CT, NY
In the registry since
2013
Specialties on file
3
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

34 Maple St
Norwalk, CT 06850-3815
Phone: (203) 852-2000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 240 E 38th St Fl 19, New York, NY 10016-2708 — (516) 884-8906
  • 240 E 38th St Fl 19, New York, NY 10016-2708 — (516) 884-8906
  • 1275 York Ave, New York, NY 10065 — (212) 639-2000

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 10409 (CT)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 631315 (NY)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 339489 (NY)

Record details

NPI number1164765921
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedMarch 30, 2013
Last updated in NPPESMay 20, 2022
Certification dateMay 20, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Msk Nassau — 98 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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