Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Gillian O'Connell

School Counselor in Great Neck, NY · enumerated 2010.

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

National Provider Identifier

1295038263

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Registry record

Entity type Individual (Type 1)

Name Mrs. Gillian O'Connell

Sex Female

Practice address 105 Clover Dr, Pupil Personnel Services- Great Neck Public Schools, Great Neck, NY, 11021

Phone (516) 441-4970

Fax (516) 441-4270

Enumeration date Dec 14, 2010

Last updated in NPPES Dec 14, 2010

Taxonomy & licenses

101YS0200X School Counselor Behavioral Health & Social Service Providers Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Gillian O'Connell?

Gillian O'Connell is registered in NPPES with the primary taxonomy of School Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-14.