Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Allison Lindsey O'Brien, PA-C
Physician Assistant in Truckee, CA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528431368
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Registry record
Entity type Individual (Type 1)
Name Allison Lindsey O'Brien
Credential PA-C
Sex Female
Practice address 10956 Donner Pass Rd, Suite 230, Truckee, CA, 96161
Phone (530) 582-3277
Enumeration date Nov 2, 2015
Last updated in NPPES Nov 2, 2015
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 53011 (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
What specialty is Allison O'Brien?
Allison O'Brien is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-02.