Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellen Warren
Behavior Analyst in San Jose, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1174027122
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Registry record
Entity type Individual (Type 1)
Name Ellen Warren
Sex Female
Practice address 871 Coleman Ave Ste 209, San Jose, CA, 95110
Phone (877) 264-6747
Enumeration date Mar 22, 2018
Last updated in NPPES Mar 22, 2018
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
What specialty is Ellen Warren?
Ellen Warren 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.
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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-22.