Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Patricia O'Brien, RN

Clinical Nurse Specialist in Fredericksburg, VA · enumerated 2015.

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

National Provider Identifier

1194197616

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Registry record

Entity type Individual (Type 1)

Name Patricia O'Brien

Credential RN

Sex Female

Practice address 501 Park Hill Dr, Fredericksburg, VA, 22401

Phone (540) 372-6737

Fax (540) 372-2076

Enumeration date Oct 23, 2015

Last updated in NPPES Oct 23, 2015

Taxonomy & licenses

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 0001082742 (VA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Patricia O'Brien's NPI record?

Cross-check NPI 1194197616 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1194197616 active?

Yes, as of the latest NPPES snapshot, NPI 1194197616 is active (record last updated 2015-10-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-23.