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CRISTINA SIERRA
NPI 1740825827
Peer Specialist in Los Angeles, CA

Active since November 12, 2019
840 N AVENUE 66, LOS ANGELES, CA 90042(626) 395-7100 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 29, 2026, Dec 5, 2019, Nov 12, 2019 (3 updates tracked since 2019).

About Cristina Sierra NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CRISTINA SIERRA (NPI 1740825827) is an individual peer specialist in Los Angeles, California, licensed in California (MPSS-PZITYV) and active in the NPI registry since November 2019.

NPPES Registry Identity

NPI1740825827
Entity TypeIndividualFemale
Primary Taxonomy175T00000X
Provider Legal NameCRISTINA SIERRA
Location Address840 N AVENUE 66Los Angeles, CA 90042-1508
Mailing Address840 N Avenue 66Los Angeles, CA 90042-1508 · (626) 395-7100
Phone(626) 395-7100
Sole ProprietorNo
Enumeration DateNovember 12, 2019
Last NPPES UpdateApril 29, 20263 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1740825827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPeer SpecialistOther Service Providers
Taxonomy Code175T00000X
License✔ Licensed in CA · MPSS-PZITYV
Definition

Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

Also ListedCommunity Health WorkerTaxonomy 172V00000X
840 N AVENUE 66, Los Angeles, CA 90042
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NATASHA MARIA WHEELER PSY.D.
Psychologist (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (323) 257-9600
IRIS CATALINA ALEGRIA MFT
Marriage & Family Therapist
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (323) 257-9600
MRS. MARGARITA MARTINEZ CABRERA MSW
Social Worker (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (323) 257-9600
MRS. MARILYN ANNE CONTRERAS-SCHLAAK MSW
Social Worker (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (323) 257-9600
IRENE GARCIA MSW
Social Worker (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (323) 257-6900
MRS. MARTHA GONTES ZAMUDIO IV
Rehabilitation Practitioner
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (323) 257-9600
MS. LISSBETH SABRINA RAMIREZ
Rehabilitation Practitioner
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MS. APRIL S DEJOHNETTE
Rehabilitation Practitioner
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cristina Sierra's NPI number?

The NPI number for Cristina Sierra is 1740825827. It was assigned to this individual provider in the NPPES registry on November 12, 2019.

Where is Cristina Sierra located?

Cristina Sierra practices at 840 N Avenue 66, Los Angeles, CA 90042. The listed phone number is (626) 395-7100.

What is Cristina Sierra's specialty?

The primary specialty registered for this NPI is Peer Specialist with taxonomy code 175T00000X.

When was this NPI record last updated?

The NPPES record for Cristina Sierra was last updated on April 29, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.