Matilde Reyna Rivera

Matilde Reyna Rivera is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Montebello, CA, registered in the NPPES registry with NPI 1497971683 since 2007.

✓ Active NPI ✓ Valid NPI checksum

NPI	1497971683
Entity type	Individual (Type 1)
Name	Matilde Reyna Rivera
Sex	Female
Practice address	501 N. 4TH STREET, Montebello, CA, 90640
Phone	3232621786
Fax	3232622659
Enumeration date	2007-04-17
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	051057	CA

Copy-ready billing details

Provider: Matilde Rivera
NPI: 1497971683
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: 501 N. 4TH STREET, Montebello, CA, 90640

Verify this record

Cross-check NPI 1497971683 against the authoritative CMS record: view Matilde Reyna Rivera on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 Matilde Rivera?

Matilde Rivera is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.