Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen E O'Leary-Barber, R.N.
Registered Nurse in Medford, NY · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053743484
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Registry record
Entity type Individual (Type 1)
Name Karen E O'Leary-Barber
Credential R.N.
Sex Female
Practice address 18 California Ave, Medford, NY, 11763
Phone (516) 220-5715
Enumeration date Aug 8, 2013
Last updated in NPPES Aug 8, 2013
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 277616-1 | Medicaid | NY | - |
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.
Frequently asked questions
How do I verify Karen O'Leary-Barber's NPI record?
Cross-check NPI 1053743484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1053743484 active?
Yes, as of the latest NPPES snapshot, NPI 1053743484 is active (record last updated 2013-08-08).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-08.