Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison N O'Brien

Registered Nurse in Cleveland, OH · enumerated 2022.

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

National Provider Identifier

1568196905

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Registry record

Entity type Individual (Type 1)

Name Allison N O'Brien

Sex Female

Practice address 10701 East Blvd, Cleveland, OH, 44106

Phone (800) 698-2411

Enumeration date Jul 12, 2022

Last updated in NPPES Jul 12, 2022

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 424211 (OH) 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 Allison O'Brien?

Allison O'Brien is registered in NPPES with the primary taxonomy of Registered Nurse. 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 2022-07-12.