NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ita O'Sullivan, NP

Psychiatric/Mental Health Registered Nurse in Rye, NY · enumerated 2006 · practices at Anna Allmann Phd LLC.

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

National Provider Identifier

1063505220

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Registry record

Entity type Individual (Type 1)
Name Ita O'Sullivan
Credential NP
Sex Female
Practice address Rye, NY, 10580
Phone (646) 234-5502
Fax (914) 939-0970
Enumeration date Oct 2, 2006
Last updated in NPPES Nov 24, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License F400205 (NY) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

How do I verify Ita O'Sullivan's NPI record?
Cross-check NPI 1063505220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1063505220 active?
Yes, as of the latest NPPES snapshot, NPI 1063505220 is active (record last updated 2025-11-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-24.