Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Grace O'Brien, PA-C
Physician Assistant in Rocklin, CA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184963928
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Registry record
Entity type Individual (Type 1)
Name Grace O'Brien
Credential PA-C
Sex Female
Practice address 6544 Lonetree Blvd, Rocklin, CA, 95765
Phone (916) 925-7020
Fax (916) 925-3680
Enumeration date Feb 13, 2013
Last updated in NPPES Nov 6, 2025
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA22820 (CA) 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.
Frequently asked questions
How do I verify Grace O'Brien's NPI record?
Cross-check NPI 1184963928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1184963928 active?
Yes, as of the latest NPPES snapshot, NPI 1184963928 is active (record last updated 2025-11-06).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-06.