Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Javier Barrero, MA.MFT
Counselor in Ontario, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1215184221
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Registry record
Entity type Individual (Type 1)
Name Javier Barrero
Credential MA.MFT
Sex Male
Practice address 317 W F St, Ontario, CA, 91762
Phone (909) 986-7111
Enumeration date Aug 20, 2008
Last updated in NPPES Aug 20, 2008
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 Javier Barrero?
Javier Barrero is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Pardis Amirhoushmand Psychologist · Ontario, CA NPI 1003946179 Michele Buyco Marriage & Family Therapist · Ontario, CA NPI 1003006164 Vicky Miller Case Manager/Care Coordinator · Ontario, CA NPI 1346430493 Olivia Sevilla Clinical Social Worker · Ontario, CA NPI 1225228349 Judy Briggs Clinical Social Worker · Ontario, CA NPI 1205026200 Steve Corsaro Addiction (Substance Use Disorder) Counselor · Ontario, CA NPI 1619126463 Jason Darr Marriage & Family Therapist · Ontario, CA NPI 1558689786 Josefina Sierra Clinical Social Worker · Ontario, CA NPI 1063781128
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-20.