Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Christina O'Brien
Behavior Analyst in Gardena, CA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508316563
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Registry record
Entity type Individual (Type 1)
Name Christina O'Brien
Sex Female
Practice address 18726 S Western Ave, Gardena, CA, 90248
Phone (855) 568-2494
Fax (855) 568-2494
Enumeration date Oct 13, 2016
Last updated in NPPES May 15, 2026
Taxonomy & licenses
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
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 Christina O'Brien?
Christina O'Brien is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Jeongho Roh Chiropractor · Gardena, CA NPI 1689860785 Gretchen Webber Speech-Language Pathologist · Gardena, CA NPI 1801023304 Helen Mader Behavior Analyst · Gardena, CA NPI 1740597012 Brenda Hernandez Speech-Language Pathologist · Gardena, CA NPI 1508151564 Sara Frederiksen Behavior Analyst · Gardena, CA NPI 1699042572 Christina Smith Speech-Language Pathologist · Gardena, CA NPI 1164797478 Kathleen Siess Speech-Language Pathologist · Gardena, CA NPI 1831444660 Nahal Parsangi Speech-Language Pathologist · Gardena, CA NPI 1598101495
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-15.