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Mary Helen Oconnor, RN

Registered Nurse in Fairfield, CT · enumerated 2014 · practices at Ct Ya Services LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1437574738

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Registry record

Entity type Individual (Type 1)
Name Mary Helen Oconnor
Credential RN
Sex Female
Practice address 2495 Redding Rd, Fairfield, Fairfield, CT, 06824
Phone (203) 218-8431
Enumeration date Feb 23, 2014
Last updated in NPPES Feb 23, 2014

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 2826831 (NY) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Mary Oconnor?
The National Provider Identifier (NPI) for Mary Oconnor is 1437574738, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Oconnor practice?
The practice location on file with NPPES is in Fairfield, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-23.